"Search for Stable and Long-Lived Massive Charged Particles in the OPAL detector at LEP"
	A search for stable and long-lived massive charged particles of electric charge |Q/e| = 1 or fractional charges of 2/3, 4/3, and 5/3 is reported using data collected by the OPAL detector at LEP, at centre-of-mass energies from 130 to 209 GeV.
	Gabriele Benelli (CERN) pdf
	Tuesday, September 2, 2003
	12:30 PM, Orange Room

	"Exclusive Vector Meson Production at HERA"
	An extended study of exclusive vector meson production in $ep$ interactions has been performed by the H1 and the ZEUS collaborations at the HERA collider. Recent measurements are reported and discussed within the framework of pQCD models and Regge phenomenology.
	Arik Kreisel (Tel-Aviv University) pdf
	Tuesday, September 16, 2003
	12:30 PM, Orange Room

	"Partial Wave Analysis (PWA) as a tool to identify states by thier J(PC)"
	abstract
	Mina Nozar (JLab) ps
	Thursday, September 18, 2003
	12:30 PM, Orange Room

	"New Results from SNO"
	The Sudbury Neutrino Observatory (SNO) measures the flux of neutrinos from the Sun using 1000 tons of heavy water (D2O). The heavy water gives SNO exclusive sensitivity to electron neutrinos through a charged current (CC) reaction, as well as the ability to measure all neutrino flavors through a purely neutral current (NC) reaction. In its first phase, SNO rejected the null hypothesis of no neutrino flavor transformation at a level of roughly 5 sigma, by comparing the rates of events from neutrinos of all flavors to the rate for electron neutrinos alone. In its new phase, 2 tons of NaCl were added to the heavy water, enhancing the ability to measure the rate from the neutrinos interacting via the NC reaction. In addition to providing better sensitivity, the NaCl also allowed the measurement of the total flux without assuming the null hypothesis: the energy spectrum of the neutrinos was not needed for the measurement. In the first results from this Phase II, we have measured the total active solar neutrino boron-8 flux with a precision roughly 30% better than our previous measurement. With this higher precision, we find that the measurements point to a large mixing angle but now reject maximal mixing at the 3 sigma level when only SNO data are used, and at over 5 sigma when other solar experiments are included.
	Josh Klein (University of Texas) ppt
	Monday, September 22, 2003
	12:30 PM, Orange Room

	"Measuring θ13 with Reactors"
	Abstract TBD
	Stuart Freedman (Berkeley) ppt
	Monday, September 29, 2003
	12:30 PM, Orange Room

	"Time-dependent CP violation in B0 --> phi Ks and related decays at Belle"
	At the XXI Lepton Photon symposium in August 2003, the Belle group presented improved measurements on time-dependent CP asymmetries in the B0 --> phi Ks, eta' Ks and K+ K- Ks decays, which are sensitive to a new CP-violating phase beyond the Standard Model, based on 152 million B-Bbar pairs recorded by July 1, 2003. Belle also updated the CP violation parameter sin2phi_1 with the full data set. In this talk, I will describe the analysis procedures for these results. In the end of my talk, I will briefly explain our plan to upgrade the KEK B factory and discuss sensitivities to physics beyond the Standard Model in the b --> s transition.
	Masashi Hazumi (KEK) ppt
	Tuesday, September 30, 2003
	12:30 PM, Orange Room

	"Charmonium: the Next Wave"
	The observation of eta-c' and X(3872) give new impetus to the search for the missing narrow levels of charmonium. B-meson decays offer promising gateways for the search and subsequent study. I will present new theoretical expectations for the spectrum and transition rates and comment on diagnostics to help unmask the nature of X(3872).
	Chris Quigg (Fermi Lab) pdf
	Tuesday, October 7, 2003
	12:30 PM, Orange Room

	"PID for Super-Belle and Recent Development of Vacuum Photo-Detectors"
	For the future Belle experiment, we have been developing new particle identification devices, based on Cherenkov ring imaging technique; ``TOP (Time-Of-Propagation) counter'' and ``Aerogel RICH''. The TOP counter utilizes internal reflection of Cherenkov photons in a quartz bar, and adopts measurements of the propagation time and the horizontal emission angle of each photon for imaging. The aerogel RICH counter consists of high quality aerogel tiles with refractive index around 1.05 and photodetector plane, which are placed in a proximity focusing geometry. Both detectors require novel photodetectors, having good single-photon sensitivity, position resolution (about 5mm), magnetic field immunity (up to 1.5T) as well as large effective area. The TOP counter requires also superior timing resolution less than 100ps. In this talk, we present the status of our studies for the TOP and aerogel RICH, with emphasis on recent development of Vacuum Photo-detectors, such as multi-anode MCP-PMT and HPD.
	Toru Iijima (Nagoya University) pdf
	Thursday, October 9, 2003
	12:30 PM, Orange Room

	"Measurements of properties of B &rarr K π, π π and KKbar Decays at Belle"
	I will report measuerments of branching fractions for the complete set of B &rarr K π, π π and K K decays, and partial-rate CP asymmetries ACP for the flavor-specific final states K+π-, K+π0, KS0 π+ and π+π0. The properties of these decays provide rich information for the determination of the CKM angles φ3 and φ2. A coherent program of theoretical investigations and improved experimental measurement of the properties of these decays is improtant in order to reduce the hadronic uncertainties and determine the CKM angles. The analysis is based on a data sample of 152 million BB pairs for the B(B0 &rarr π0 π0) and ACP(B0 &rarr K+ π-) measurements and 85 million BB pairs for the other measurements. The data samples were collected at the &upsih(4S) resonance with the Belle detector at the KEKB e+e- storage ring.
	Suzuki Kazuhito (KEK) pdf
	Tuesday, October 14 2003
	12:30 PM, Orange Room

	"Detection of Neutrons by Silicon Detectors"
	The talk will be devoted to specific aspects of neutron detection using silicon semiconductor detectors. The speaker will classify neutron induced reactions used for neutron detection as well as neutron reactions with silicon. Special attention will be paid to the development of a position sensitive detector of single neutrons. The concept of such device based on single X-ray photon pixel detector Medipix-1 developed at CERN (64 x 64 square pixels, each 170 &mu m x 170 &mu m) will be presented. Thermal neutrons are converted in a converter layer to heavy charged particles, which are subsequently detected by the Medipix-1 device. Spatial resolution and detection efficiency of such detector will be given for different converter materials (6LiF, 10B) and compared with Monte-Carlo simulations. Device sensitivity to background gamma radiation and to neutron activation will also be mentioned in the talk. Recent tests of such neutron pixel device for neutron radiography and neutron tomography (2D and 3D thermal neutron imaging of real objects) will be shown demonstrating capabilities and possible applications of the device. Plans to improve sensitivity and resolution by adapting a new digital pixel detector system Medipix-2 (256 x 256 square pixels, each 55 &mu m x 55 &mu m) for the single neutron position sensitive detection at high dynamic range will also be given in the talk.
	Stanislav Pospisil Czech Technical University in Prague pdf Animations
	Monday, October 27, 2003
	12:30 PM, Orange Room

	"Beam polarisation at a future LC: Searches for New Physics"
	A future Linear collider in the energy range of at least sqrt{s}=500 GeV would offer unique possibilities for studying electroweak physics with high precision, such as exploring the mechanism of electroweak symmetry breaking, disentangling the fundamental SUSY parameters, or revealing other kinds of new physics. For these purposes beam polarisation is one of the most powerful tools and it is argued that high polarisation of both the e- beam and the e+ beam is needed. A summary is given of the physics opportunities of running the LC with beam polarisation.
	Gudi Moortgat-Pick ps
	Tuesday, October 28, 2003
	12:30 PM, Orange Room

	"Measurement of inclusive hadron production in B-Meson decays with the BaBar detector"
	A measurement of the momentum spectra of charged pions, kaons and protons from B+ and B0 decays will be presented. The data analyzed were taken at the &Upsilon(4S) resonance with the BaBar detector. % at the PEP-II asymmetric B-factory. These hadron spectra were obtained for each B-meson flavor and hadron charge separately. The B-Meson flavor is determined by using fully reconstructed B-meson decays into a flavor eigenstate. The particle types of the charged decay products of the other B-Meson were determined by an algorithm, making use of particle type specific information from various detector components. Multiplicities were extracted and some expected structures were seen, like a peak in the B+ &rarr &pi + spectrum or iso-spin correlations between different pion spectra.
	Stefan Christ pdf
	Thursday, October 30 2003
	12:30 PM, Orange Room

	"Evidence for the Pentaquark: an Exotic Baryon"
	There have been several recent, independent experiments that have announced evidence for a new exotic baryon which is made up of four quarks and one anti-strange quark (flavor structure uudds-bar) at a mass of 1.54 GeV and a narrow width of <10 MeV. This particle is a candidate for the exotic baryon predicted by the chiral soliton model at nearly the same mass. Its narrow width makes it difficult to explain in terms of the conventional quark models, and hence we expect to learn more about non-perturbative QCD in order to explain this particle. Details of the experiments at SPring-8 (in Japan, where it was first seen) and at Jefferson Lab (the CLAS collaboration) will be reviewed. Other experiments showing evidence will be breifly discussed. Some remarks on theoretical developments to explain the $\Theta^+$ will be made.
	Ken Hicks (JLab) ppt
	Tuesday, November 4, 2003
	12:30 PM, Orange Room

	"Heavy Flavor Hadrons at CDF"
	CDF collected about 220 pb-1 of data during its first two years of operation. These large samples have enabled CDF to carry out heavy flavor hadron spectroscopy and precision measurements. I will report the CDF observation of X(3872)->J/Psi pi+ pi- which was first observed at Belle and the Lambda_b lifetime at CDF.
	Kai Yi pdf
	Thursday, November 6, 2003
	12:30 PM, Orange Room

	The X(3872)
	There are hundreds elementary particles and the discovery of a new one is usually not an extraordinary event. However, as its name is meant to imply, the X(3872) resonance that was recently reported by Belle and confirmned by CDF is peculiar in that it does not easily fit into any known scheme. This state is narrow and is seen in its decay to &pi+ &pi- J/ &psi, which suggests that it is one of the "missing" charmonium states. However, its mass and decay properties do not match well potential model expectations for any of the usual charmonium suspects. The X(3872) also has the intriguing feature that its mass is equal within rather small errors to the sum of the masses of the D 0and D*0 mesons. This suggests that it may not be a q-\bar{q} meson, but is instead a molecular-like D*0\barD b0ound state. In this talk I will present the evidence for the X(3872), describe what we know about its properties in the context of expectations for various possible charmonium states, and discuss strategies for future investigations.
	Steve Olsen, (University of Hawaii at Manoa) pdf
	Tuesday, November 11, 2003
	12:30 PM, Orange Room

	"Quark Masses, Hyperfine Interaction and Pentaquarks"
	We propose a model for the recently discovered £+ exotic KN resonance as a novel kind of a pentaquark with an unusual color structure: a 3c ud diquark, coupled to 3c ud¹s triquark in a relative P-wave. The state has JP = 1=2+, I = 0 and lies in the antidecuplet of SU(3)f . A rough mass estimate of this pentaquark is close to experiment. We also discuss other related pentaquarks: a ddss¹u exotic ¥, and the anticharmed exotic baryon £c with quark content uudd¹c. We expect that £c is an isosinglet with JP = 1=2¡ and estimate its mass at 2985 § 50 MeV. We also discuss another possible exotic baryon resonance containing heavy quarks, the £+ b , a uudd¹b state, and estimate m£+ b = 6398 § 50 MeV. These states should appear as unexpectedly narrow peaks in D¡p, ¹D 0n, B0p and B+n mass distributions. References: H.J. Lipkin and M. Karliner, hep-ph/0307243 and hep-ph/0307343.
	Marek Kaliner (Cavendish Lab, Cambridge Univ. and Tel Aviv Univ.) pdf
	Thursday, November 13 2003
	12:30 PM, Orange Room

	"Towards measurement of &phi3/&gamma"
	We report a study of B- &rarr DCP K(*)-, using data collected at the &Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric e+e- storage ring. Results on the branching fraction(ratios) for B- &rarr D0 K*- (K-), and and CP asymmetries for B- &rarr DCP K(*)-, where D CPis a CP eigenstate of the D0 meson, are reported. The implications for the determination of the CP angle &phi3 are discussed.
	Sanjay Swain, (University of Hawaii) ppt
	Tuesday, November 18, 2003
	12:30 PM, Orange Room

	"Heavy Quarkonia Past, Present, Future"
	Heavy quarkonia continue to be an important laboratory to study aspects of strong interaction. The need for a way to deal with the non-perturbative transitions involved calls for precision measurements on the one hand, and for discovery of as yet undetected states to confirm predictions on the other. The CLEO collaboration is analyzing data recently collected on the Y(1S,2S,3S) as well as psi' and psi(3770) resonances. BES has published results using their large J/Psi and psi' samples. These as well as those from other experiments help to gain a better understanding of the landscape of heavy quarkonia states.
	Hanna Mahlke-Kruger (Cornel) pdf
	Tuesday, November 25 2003
	12:30 PM, Orange Room

	"Compton Scattering from the Proton in the Hard Scattering Regime"
	This talk will present initial results from JLab E99-114, which studied wide-angle Compton scattering from the proton up to 5.5 GeV. The goal was to distinguish between two theoretical mechanisms for the perturbative subprocess whereby the photons couple to the quarks: Either the subprocess involves three quarks mediated by the exchange of two hard gluons or one quark and no hard gluons. The two mechanisms lead to very different predictions for the scaling of the cross sections both at fixed angle and fixed t and for various polarization observables. A nearly final result for the polarization observables and preliminary results for the unpolarized cross sections will be presented and discussed.
	Alan Nathan, (University of Illinois) ppt
	Tuesday, December 2, 2003
	12:30 PM, Orange Room

	"Vertex detection in LHCb"
	LHCb will produce B-mesons at high rate to and allows studying CP violation and heavy-quark systems. In addition, precise measurements of B oscillations and CP asymmetries can reveal new physics. Displaced secondary vertices are a special feature of B-meson decays and consequently vertex reconstruction is a fundamental requirement for the LHCb experiment. LHCb places thin silicon strip detectors in the LHC vacuum at only 8 mm distance from the beams. The LHCb detector has been optimized, especially its tracking scheme, to improve the physics performance. The silicon detectors are readout by the Beetle, a deep-submicron frontend chip, specially designed for the vertex detector. The chip is designed to withstand the high radiation levels close to the LHCb interaction point. The frontend amplifier and shaper have strict constraints to cope with the 40 MHz LHC clock. The Beetle chip is bonded to prototype silicon detectors and tested in several testbeam runs at CERN. The current design of the vertex detector meets the LHCb requirements and provides a vertex resolution along the beam direction of about 40 micro-meter to resolve the fast Bs oscillations.
	Niels van Bakel ppt
	Thursday, December 4, 2003
	12:30 PM, Orange Room

	"MiniBooNE: a status report"
	"MiniBooNE (Mini Booster Neutrino Experiment) at Fermilab will provide a definitive test of the evidence for neutrino oscillations reported by the LSND experiment. The observation of neutrino oscillations with the mass splittings given by the solar, atmospheric and LSND neutrino data cannot be accomodated by the Standard Model with three neutrino mass eigenstates. If confirmed, this mode of neutrino oscillation has tremendous implications for both particle physics and cosmology. We present a status report of the experiment after one year of data taking, including a look at neutrino data and an updated sensitivity analysis."
	Hiro Tanaka, (Fermilab) pdf
	Tuesday, December 9, 2003
	12:30 PM, Orange Room

	"Weak Decay Formfactors - Theory and Applications"
	The measurement of B decays to final states involving a light meson (i.e. pi, rho, K, K*) is very relevant for determining CKM-matrix elements and clarifying the question if CP-violation is indeed due to one complex phase in that matrix or if there are new sources of CP-violation beyond the Standard Model. The reliable extraction of weak parameters necessitates sufficient control of QCD-effects. I describe new results for the relevant decay form factors, in from QCD sum rules on the light-cone, and discuss the strength and limitations of that approach.
	Patricia Ball,(IPPP University of Durham pdf
	Thursday, December 11, 2003
	12:30 PM, Orange Room

	"Measurement of Time-dependent CP Asymmetries in Two-body Charmless B Meson Decays"
	Amir Farbin,(University of Maryland) ppt
	Monday, December 15, 2003
	12:30 PM, Orange Room

	"Inclusive B Physics: Spectra, Moments and CKM Matrix Elements."
	I will present an overview of inclusive B meson measurments at CLEO that are used to improve our knowledge of the CKM matrix. Specifcally, I will describe the measurement of the moments of various spectra. These measurements are used to constrain the values of non-perturbative Heavy Quark Expansion parameters, overline&Lambda and &Lambda1. The constraints allow a more precise determination of Vcb. I will also present similar advances in the extraction of Vub.
	Dan Cronin-Hennessy, (cornell) ppt
	Tuesday, December 16, 2003
	12:30 PM, Orange Room

	"A Search for Missing Baryons in &gamma p &rarr p pi+ pi-"
	Abstract, (ps) Refferences, (ps)
	Matt Bellis pdf
	Tuesday, January 6, 2004
	12:30 PM, Orange Room

	"Searching for the Unexpected at CDF"
	The Tevatron collider experiments are currently in a unique position to observe new phenomena. While optimizing for a major discovery is complicated by an overabundance of theoretical possibilities, exploiting common phenomenological themes and experimental strengths leads to carefully focused improvements in detector hardware, reconstruction techniques and search strategies that maximize th physics potential of the CDF experiment. The elements of this approach include a new silicon detector with increased coverage and improved impact-parameter resolution, a novel high-acceptance tracking algorithm for electrons and a program of signature-based searches for new physics. Preliminary results from this program will be presented: a search for new physics in the spectrum of high-mass electron pairs.
	Timothy Nelson (Fermi Lab) pdf
	Tuesday, January 13, 2004
	12:30 PM, Orange Room

	"Double Beta Decays and Solar Neutrinos by MOON(Mo Observatory Of Neutrinos)"
	The MOON (Molybdenum Observatory Of Neutrinos) project is a hybrid double-beta and solar neutrino experiment with 100Mo. It aims at high sensitive studies of double beta decays with a neutrino mass sensitivity of 0.03 eV and real-time studies of pp and 7Be solar neutrino's. The double beta rays from 100Mo are measured in prompt coincidence for the neutrinoless double beta decays and the inverse beta rays from solar-neutrino captures of 100Mo are measured in delayed coincidence with the subsequent beta decay of 100Tc. One option of the MOON detector is a supermodule of x-y scintillation fiber planes and scintillation plates. Thin100Mo films are interleaved between the fiber planes. Measurements with good position resolution enable one to select true signals by spatial and time correlations. A proto type MOON detector, MOON-1, is under construction.
	Hiro Ejiri (RCNP-Osaka University) pdf
	Tuesday, January 20, 2004
	12:30 PM, Orange Room

	"SLAC's first step into space: Status of the USA experiment 5-years after launch"
	We give a perspective of SLAC's first space based detector, the USA experiment aboard the ARGOS satellite.  We describe the results of SLAC students' and staff participation in the experimental process of designing, building, testing, understanding, and extracting physics results from the detector.   We discuss in some detail USA experimental tests of predictions of general relativity at or near the event horizon of black holes using the high frequency power spectrum of Cygnus X-1, and a search for x-ray bursts from black hole candidates.  We also discuss the USA observation of a flare from an active galactic nucleus. This observation was part of a multi-wavelength campaign that led to the identification of this AGN as a TeV emitter. Such multi-wavelength campaigns will be important for the GLAST AGN observation program.
	Larry Wai (SLAC) ppt
	Tuesday, January 27, 2004
	12:30 PM, Orange Room

	THe Quenching of Jets at RHIC - Evidence for Hot Bulk QCD Matter
	John Harris, Yale University pdf
	Tuesday, February 5, 2004
	12:30 PM, Orange Room

	The Search for D0-D0bar mixing at BABAR
	Michael Wilson, UC Santa Cruz pdf
	Tuesday, February 10, 2004
	12:30 PM, Orange Room

	Particle Physics in Space with PAMELA Experiment
	Mark Pearce, KTH pdf
	Tuesday, February 12, 2004
	12:30 PM, Orange Room

	Recent Developments on Liquid Xenon Detectors at Columbia
	Elena Aprile, Columbia University
	Friday, February 13, 2004
	12:30 PM, B-Hive

	WIMP Dark Matter Searches - The Boulby programme and prospects for very large multi-target experiments
	Neil Spooner, Sheffield University
	Tuesday, February 17, 2004
	12:30 PM, Orange Room

	ICARUS
	Carlo Rubbia, CERN
	Tuesday, February 17, 2004
	4:00 PM, Panofsky Auditorium

	Recent Results from the Edelweiss
	P. Di Stefano, U. Claude Bernard, & IPNL pdf
	Tuesday, February 24, 2004
	12:30 PM, Orange Room

	Pentaquarks for Pedestrians
	Harry Lipkin, Weizman Institute of Science
	Tuesday, February 25, 2004
	12:30 PM, Orange Room

	Measurement of Charged Triple Gauge Coupling Parameters at e+e- Colliders
	Wolfgang Menges, DESY pdf
	Tuesday, February 26, 2004
	12:30 PM, Orange Room

	"Cuoricino and CUORE: Calorimetric Searches for the Neutrinoless Double Beta Decay of 130Te"
	Cuoricino is an array of 62 TeO2 bolometers now running at the Gran Sasso National Laboratory and searching for the neutrinoless double beta decay of 130Te. The Cryogenic Underground Observatory for Rare Events (CUORE) is a proposed second generation experiment consisting of a tightly packed array of 1000 TeO2 bolometers with a design optimized for ultralow background studies. Neutron-transmutation-doped (NTD) germanium thermistors are attached to each crystal to measure the small temperature changes resulting from radioactive decays. A status report on Cuoricino and plans for CUORE will be presented.
	Eric B. Norman,(LBNL)
	Tuesday, March 2, 2004
	12:30 PM, Orange Room

	"A new Precision Measurement of |Vub |"
	We propose a new method for a precision measurement of the CKM matrix element |V_ub | from inclusive semileptonic B decays. Our method combines good theoretical control with high efficiency and a powerful discrimination against charm background. Using effective field theory techniques, we derive factorized expressions for arbitrary B -> X_u l nu decay distributions in the shape-function region of large hadronic energy and moderate hadronic invariant mass. We present the charged-lepton energy spectrum, the hadronic invariant mass distribution, and the spectrum in the hadronic light-cone momentum P_+ = E_H - P_H. The P_+ spectrum would be a most useful quantity to measure in order to extract a value of |V_ub | with a well-controlled theoretical error.
	Stefan Bosch (Cornell University) pdf
	Thursday, March 4, 2004
	12:30 PM, Orange Room

	"Results from the study of p+p and Pb+Pb collisions in experiment NA49 at the CERN SPS"
	Recent evidence from NA49 for production of an exotic S= -2, Q= -2 baryon resonsnce in p+p collisions will be presented. This state is a candidate for one of the predicted pentaquark baryons. Pb+Pb collisions were studied over the full SPS energy range of 20 - 158 GeV/nucleon in a search for the Quark Gluon Plasma. Anomalies in the energy dependence of pion and kaon yields as well as of the average transverse momenta of kaons are observed around 30 GeV. These features, which cannot be reproduced by present hadronic models of particle production, may indicate the onset of deconfinement in the dense and hot matter at the early stage of the reaction.
	P.Seyboth, Max-Planck-Institut fuer Physik (NA49 collaboration)
	Tuesday, March 9, 2004
	12:30 PM, Orange Room

	"X-ray optics for yet another diffuse x-ray line emission explorer (YADEX)"
	Even with the advent of very high quality data directly relevant to cosmology (e.g., WMAP, SNAP, LSST, DUO..), many questions will remain about the formation of large scale structure. Spectroscopic sky surveys such as the Sloan DSS are doing terrific jobs mapping the portion of large scale structure that is *traceable by galaxies* out to z ~ 0.1; however, up to ~50% of the baryons of the "local" (z<3) universe are "missing" (i.e., may reside in a diffuse, hot, nearly unobservable phase). A dedicated, large grasp, orbiting X-ray telescope read out with an array of microcalorimeters could directly detect emission from this phase and map their distribution. Other groups have already proposed such missions (Missing Baryon Explorer & Diffuse Intergalactic Oxygen Surveyor). I will describe and discuss an optimized optical design for the X-ray focusing optics that maximizes performance and appeal for such an observatory.
	Andrew Rasmussen (Columbia University)
	Thursday, March 11, 2004
	*NOTE TIME* 2:00 PM, Orange Room

	"Recent Results from FOCUS"
	In recent years charm physics has enjoyed renewed interest; the excellent quality of data and high statistics allow for unprecedented sensitivity and sophisticated studies never before possible. Investigation of decay dynamics in both the hadronic and semileptonic sectors reveals manifestations of quantum-mechanical interference and phase effects that afford probes of FSI and possible CP-violating effects. Dalitz-plot analysis has emerged as a powerful tool for investigating the effects of resonant substructures and interference patterns; the potentiality to investigate charm dynamics has revealed itself to be strongly related to the knowledge of the light-meson sector. Lifetime measurements at a level of 1\% or better can shed light onto the non-spectator contribution to charm decays while mixing and rare decays could represent a possible window into new physics. Within this context of growing and future importance, recent results from the FOCUS experiment will be presented and discussed.
	Sandra Malvezzi (INFN) ppt
	Tuesday, March 16, 2004
	12:30 PM, Orange Room

	"Color Suppressed Decays and B-> M1 M2 in SCET"
	In this talk I discuss factorization predictions in the framework of the soft-collinear effective theory (SCET). I explain the lessons we have learned from color suppressed decays like B0 -> D0 pi0, and what additional measurements will tell us. I then discuss B -> M1 M2 decays where M1 and M2 are light mesons (pi, K, ...), focusing on the manner in which precise data from semileptonic decays will help to reduce the hadronic uncertainties and thereby improve measurements of alpha and gamma.
	Iain Stewart pdf
	Tuesday, March 30, 2004
	12:30 PM, Orange Room

	"What's up with HyperCP?"
	HyperCP (FNAL E871) is a small fixed-target experiment designed to hunt for CP violation in hyperon non-leptonic decays with excellent sensitivity. The search is performed by comparing the decay distribution of the strange baryon with that of the antibaryon. Any difference in such a comparison would signal CP non-conservation in the decay. HyperCP has obtained over two billion decays of charged cascade and its antiparticle, yielding a statistical sensitivity on the order of 10^-4 where some models predict a CP-odd effect. Status of the HyperCP analyses will be presented.
	Kam-Biu Luk (UC Berkeley/LBL)
	Tuesday, April 6, 2004
	12:30 PM, Orange Room

	"LIGO"
	"TBD"
	Barry Barrish,(Caltech) pdf
	Tuesday, April 13, 2004
	12:30 PM, Orange Room

	"Precision Measurements of D0 -> pi e nu and D0 -> K e nu Using the CLEO-III Detector"
	We report a preliminary measurement of the ratio of branching fractions, B(D0 -> pi e nu)/B(D0 -> K e nu), using data taken with the CLEO-III detector at the Upsilon(4S) resonance. We also discuss recent progress on the measurement of the D0 -> pi e nu and D0-> K e nu rates as a function of momentum transfer. These measurements are of interest because they provide information on heavy-to-light form factors, thus serving as experimental checks for existing theoretical predictions. The hope is that this will ultimately improve precision measurements of the CKM matrix elements, and in particular, exclusive measurements of V_ub.
	Lauren Hsu (Cornell University) ppt
	Wednesday, April 14, 2004
	12:30 PM, Orange Room

	"Recent Charmonium Results from the BES Experiment."
	"Recent results will be reported based on analyses using samples of 58 million $J/\psi$ and 14 million $\psi(2S)$ events collected with the BESII detector at the BEPC, including $J/\psi \rt p \bar{p}$, $J/\psi \rt \pi^+ \pi^- pi^0$, $\psi(2S) \rt \gamma \gamma J/\psi$, $\psi(2S) \rt X J/\psi$, and a pentaquark search. The talk will also cover the pQCD 12\% rule between $J/\psi$ and $\psi(2S)$ decays, and a test of the color octet mechanism in $\chi_{cJ}$ decays into baryon pairs. Other channels described include $J/\psi$ and $\psi(2S) \rt K_S K_L$ and $K_S K_S$, $\chi_cJ \rt p \bar{p}$ and $\Lambda \bar{\Lambda$, and $\psi(2S) \rt Vector Tensor$. The future BES3 plans will be described.
	Frederick A. Harris University of Hawaii pdf
	Tuesday, April 20, 2004
	12:30 PM, Orange Room

	"Recent g-2 Results"
	"TBD"
	Yannis Semertzidis (Brookhaven National Lab) ppt
	Tuesday - April 27, 2004
	12:30 PM, Orange Room

	"Solar Evidence for Transition Magnetic Moments and Sterile Neutrinos"
	"TBD"
	David O. Caldwell, (UCSB) pdf
	Tuesday, May 11, 2004
	12:30 PM, Orange Room

	"ANITA--Antarctic Impulsive Transient Antenna: A balloon-borne GZK neutrino detector"
	Since Greisen, Zatsepin, & Kuzmin first noted the "end to the cosmic-ray spectrum" in the 60's... well, the end is still not (quite) observed. But the GZK end is only the beginning for 10^{18} eV neutrinos, which carry information on the behavior of the highest energy particles {\em in} the universe, {\em throughout} the universe. The GZK process, still by all accounts the standard model, is a guaranteed source of EeV neutrinos, which once detected, may become the neutrino "standard candle" at energies we are unlikely to ever achieve in the lab. ANITA, a NASA long-duration Antarctic Balloon, hopes to be the first to detect these neutrinos, by utilizing a large fraction of the Antarctic ice sheet as its target volume, and detecting the neutrinos via the Askaryan effect: radio Cherenkov emission from their cascades, first discovered at SLAC in 2000. We report on the plans for this mission, due for first launch in 2006, and describe the initial results of a prototype flown in Antarctic several months ago: the ANITA-lite mission.
	Peter Gorham (University of Hawai'i) ppt
	Thursday, May 13, 2004
	12:30 PM, Orange Room

	"Bumps and bangs: looking for dark matter in our neighborhood"
	Our galactic neighborhood (the 3 kpc around Earth) may contain massive relic particles from the big bang which might be the dark matter responsible for observed galactic dynamics. Three methods of detecting massive relics have emerged: direct detection by nuclear recoil, detection of decay fragments from self-annihilation of the relics either when the relics are gravitationally bound in the galaxy or in the sun and earth. Each method plays a unique role in determing not only the relic particle properties, but also the spatial and temporal distribution in our galaxy.
	Peter Fisher (MIT)
	Thursday, May 20, 2004
	12:30 PM, Orange Room

	"The SNAP R&D Program"
	The SNAP experiment is a proposed space telescope currently in an intensive R&D phase.  The experiment plans to measure the properties of the dark energy accelerating the expansion of the universe.  With a 2m aperture and over half a billion pixel focal plane this is an ambitous project enabled by a number of recent key technical developments.  An overview and the motivation for the R&D will be discussed with a special emphasis on the detector development program.
	Michael Levi (LBL) ppt
	Tuesday, May 25, 2004
	12:30 PM, Orange Room

	"Recent results on Top and Higgs from the Dzero experiment"
	We will review the latest results from D0 on Top and Higgs Physics, including the reanalysis of the Run I Top mass measurement and it s implications in the Higgs sector.
	Gregorio Bernardi,(LPNHE, University Paris VI & VII)
	Thursday, June 3, 2004
	12:30 PM, Orange Room

	" New Results from the Belle Experiment: Observation of Large CP Violation in B->pi+pi- Decays"
	The Belle experiment began running in 1999 and to-date has recorded over 260 fb^-1 of data. Using 140 fb^-1 of data, we have observed large CP violation in B->pi+pi- decays, and first evidence for direct CP violation in B decays. Numerous checks have been made on this result, and the analysis will be described. From this measurement we set a model-independent constraint on the CKM phase angle phi_2 (alpha). Some other results from Belle may also be summarized.
	Alan Schwartz,(U. Cincinnati) pdf
	Tuesday, June 8, 2004
	12:30 PM, Orange Room

	"New B-Physics Results from DZero"
	The talk will review the new results on B-physics from the DZero detector at Fermilab. After two years of data taking, the experiment recorded over 100,000 semileptonic decays of Bd mesons which were used to perform a precise measurement of lifetime ratio of the charged and neutral B mesons, to benchmark Bd oscillations and to observe semileptonic B decays to D** mesons. The world's largest exclusive and semileptonic samples of Bs mesons will allow probing of oscillations and CP effects in the Bs system beyond the reach of previous experiments.
	Andrei Nomerotski pdf
	Thursday, June 10, 2004
	12:30 PM, Orange Room

	"SOFIA infrared astronomical observatory: far-IR high resolution spectroscopy"
	"TBD"
	Jurgen Stutzki, (Koeln University)
	Friday, June 11, 2004
	2:00 PM, Orange Room

	"B-Factory Signals for a Warped Extra Dimension"
	I will discuss flavor physics in a "warped" (curved) extra dimension. In this model, the profiles of fermions in the extra dimension explain hierarchies in fermion masses. Moreover, there is an analog of GIM mechanism with first and second generations. Just as in the SM, the GIM mechanism is violated by inclusion of the top quark, in turn, leading to striking signals at B-factories such as O(1) effects in semileptonic and radiative B decays and B_s mixing. Remarkably, this model can be interpreted as dual to a purely 4D composite Higgs model. Thus, the upshot is that a 4D strongly interacting Higgs sector can solve flavor puzzle with suppressed flavor-violation and be tested at B factories.
	Kaustubh Agashe (Johns Hopkins University) pdf
	Tuesday, June 15, 2004
	12:30 PM, Orange Room

	"Recent Results from Kamland"
	"TBD"
	Jason A Detwiler,(Stanford University) pdf
	Tuesday, June 22, 2004
	12:30 PM, Orange Room

	"The DsJ States at CLEO"
	Two narrow resonances were observed and confirmed by different experiments last year. The observations of the DsJ*(2317) and DsJ(2460) were surprising because they are narrower and less massive than most theoretical predictions for the L=1 c-sbar mesons for which these states would otherwise be obvious candidates. I will present experimental evidence from CLEO for the existence of these two states -- this involved untangling the pathological background that each state constitutes for the other. I will also discuss their properties and interpretations as c-sbar mesons, as well as other theoretical explanations.
	Selina Li (University of Minnesota) pdf
	Wednesday, June 23, 2004
	12:30 PM, Orange Room

	"Top physics from CDF"
	"TBD"
	Richard E. Hughes, (Ohio State) ppt
	Tuesday, June 29, 2004
	12:30 PM, Orange Room

	"Scientific CMOS Pixels"
	Over a decade has passed since complementary metal oxide semiconductor (CMOS) imaging detectors made their move into the charge-coupled device (CCD) arena. Low cost, low power, on-chip system integration, high-speed operation, high radiation tolerance are some of the unique features that have made CMOS detectors popular with the imaging community. However, it still remains unclear if CMOS arrays can truly compete with the CCD in high performance applications (e.g., scientific). This short presentation compares fundamental performance parameters that are common to CMOS and CCD imagers. With these comparisons, we list specific design and process weaknesses that are holding back CMOS imagers from high performance use. We present recently generated electro optical data for a variety of high performance CMOS pixel architectures described in Ref 1. Specifically, data generated by 3T pinned diode, n-well and deep n-well photo diode pixels and 5T charge coupled buried and surface channel photogate pixels is reviewed. Frontside and fully depleted backside illuminated devices are characterized. Critical performance parameters such as full well, read noise, dynamic range, linearity, fixed pattern noise, dark current, pixel cross talk, image lag, luminescence, quantum efficiency are measured and compared for each pixel type. Charge transfer efficiency, sense node smear and blooming data is presented for charge transfer pixels. Backside dark current, depletion effects, QE hysterisis and stability characteristics are reviewed for backside devices. Co-60 ionizing radiation damage data is given.? Performance data related to rolling shutter, snap and progressive scan readout modes is examined. We will close the talk by summarizing performance deficiencies and design and process remedies for problems identified. Ref. 1 Charge coupled CMOS and hybrid detector arrays, SPIE, San Diego, Focal Plane Arrays for Space Telescope, paper #5167-1, Aug 2003.
	James Janesick part 1 : ppt, part 2 : ppt
	Thursday, July 1, 2004
	12:30 PM, Orange Room

	"New Results from E158"
	TBD
	Yury Kolomensky, (UC Berkeley) pdf, ppt
	Friday, July 2, 2004
	12:30 PM, Orange Room

	"Readout Studies with an Analog Hadronic Calorimeter"
	The physics goals at a linear collider impose high demands calorimetry. For an excellent separation of WW jets from ZZ jets a jet energy resolution of $30\% /\sqrt{E}$ is anticipated, which requires electromagnetic and hadronic calorimeters with high granularity both in the transverse and longitudinal directions. Within the Calice collaboration, we work at DESY on the analog option of a highly-segmented hadronic calorimeter using scintillating tiles, wavelength shifting fibers and different photodetectors. With a small prototype in an $e^+$ test beam, we have tested the performance of SiPM, PM and APD readouts, developed a calibration method, measured linearity and energy resolution, developed a monitoring system and performed shower simulations in GEANT4. Based upon the beam test results we are designing a 1 $\rm m^3$ prototype to test this new calorimeter concept in a hadron beam. The talk will cover the concept, test beam results and the layout of the physics prototype.
	Gerald Eigen
	Thursday, July 8, 2004
	12:30 PM, Orange Room

	"GALPROP: A self-consistent model for cosmic-ray propagation and diffuse gamma-ray emission"
	Studies and discoveries in cosmic-ray physics and generally in astrophysics provide a fertile ground for research in many areas of particle physics and cosmology, such as the search for dark matter, antimatter, new particles, and exotic physics, studies of the nucleosynthesis and the galactic chemical evolution, origin of Galactic and extragalactic diffuse gamma-ray emission, formation of the large scale structure of the universe etc. In its turn, the astrophysics of cosmic rays and gamma rays depends very much on the quality of the data and their proper interpretation. The data will continue to flow from current cosmic-ray experiments on interplanetary spacecraft such as Ulysses, Advanced Composition Explorer (ACE), and the two Voyagers, and specialized balloon-borne experiments such as TIGER, BESS-Polar, CREAM. The near-future space-based missions AMS-2 and Pamela are specifically designed to search for the signatures of dark matter, search for antimatter, and provide outstanding quality data on cosmic-ray species in a wide energy range. The new major gamma-ray observatory GLAST will improve the sensitivity for the diffuse high-energy gamma-rays produced in cosmic-ray interactions in the interstellar medium by a factor of 30. All this presents a great opportunity for new discoveries that requires, however, an accurate and realistic modeling to exploit. In this talk, I will show latest results obtained with GALPROP, the most advanced numerical model for cosmic-ray propagation, which includes in a self-consistent way all cosmic-ray species (stable and long-lived radioactive isotopes from H to Ni, antiprotons, positrons and electrons, diffuse gamma rays and synchrotron radiation), and all relevant processes and reactions.
	I. V. Moskalenko (NASA/GSFC)
	Tuesday, July 13, 2004
	12:30 PM, Orange Room

	"The Milky Way as a Source and a Background for GLAST"
	Most of the celestial gamma rays that the Large Area Telescope on GLAST will detect will originate in cosmic-ray interactions with interstellar gas and photons in the Milky Way. This diffuse high-energy gamma-ray emission is diagnostic of Galactic structure and provides unique information about the distribution of cosmic rays and molecular gas. Owing to the limited photon statistics and angular resolution provided by pair conversion telescopes like the LAT, the diffuse emission of the Milky Way must be well understood in order to distinguish Galactic and extragalactic point sources - the principal scientific focus for the LAT - from diffuse emission and to determine accurate coordinates for them. Of course, study of the extragalactic diffuse emission will also require an accurate model of the foreground. In my talk, I will describe some current issues in modelling the Milky Way for the LAT.
	Seth Digel, (Stanford University)
	Thursday, July 15, 2004
	12:30 PM, Yellow Room (A&E)

	"Diffractive Interaction of Cosmic Ray Protons with Inter-Stellar Matter: An Origin of GeV Excess and Harder Gamma Spectrum seen by EGRET"
	Gamma-rays produced through pi-zeros by cosmic ray protons interacting with Galactic inter-stellar matter have been observed since mid 1970s. The general feature of the spectra observed by COS-B has been reproduced well by a combination of low energy pp data (Ep <10-50GeV) and the "scaling" model (Ep>10-50GeV). The EGRET data, however, has shown clear disagreement with the calculation in two areas: the observed gamma spectrum is significantly higher in GeV range ("GeV Excess") and harder. These discrepancies have prompted many theoretical speculations including possible dark matter annihilation. A new calculation has been done including the diffractive interaction and the scaling violation for the first time using Pythia 6.2, a newly developed simulator for diffractive interaction, and a low energy simulator by Stephens and Badhwar. The result gives a higher GeV gamma-ray flux and harder gamma-ray spectrum, both due primarily to the diffractive interaction. The disagreements are now less pronounced.
	Tune Kamae, (SLAC)
	Tuesday, July 20, 2004
	12:30 PM, Orange Room

	"Modeling based on QCD area law, A successful aproach for hadronization in e+e- collisions for mesons."
	The perturbative treatment of strong couplings between high energy quarks and gluons has been applied and tested in several fronts. The non-perturbative regime however is still lagging behind and a cogrect or preferred approach is not yet designated. Nevertheless, QCD calculations with expansions in term of 1/g on the lattice have enjoyed some success. It appears that the cleanest environment for testing the success of such approach is in the studies of hadronization in e+ e collisions, where the perturbative parts of events, being essentially common for all, are effectively decoupled. The approach chosen here is a phenomenological one. Thus lattice calculations are not directly applied; rather the general feature of the prediction of this approach is employed. From studies of rates and distributions of heavy-quark (c,b) mesons produced en e+e- collisions we have developed additional evidence that hadron formation, at least in this simplest environment of e+e- collisions, is dominantly controlled by the Space-Time Area Law (STAL), an approach strongly spggested by both non-perturbative QCD and Relativistic String Theory.
	Shahriar Abachi, (UCLA)
	Tuesday, July 27, 2004
	12:30 PM, Orange Room

	"Supersymmetry: Experiments for Search and Deeper Understanding"
	The search for supersymmetry has been pursued at LEP extensively. The attempt of its discovery will be one of the main physics topics at the LHC. If it is found the precise study of its structure will be the hottest topic at the future linear collider. This talk presents the supersymmetric Higgs boson searches at the OPAL experiment at LEP with emphasis on the search for the Higgs pair production process with four b-quarks in the final state. Since no Higgs bosons have been found, the parameter space of different supersymmetric models is constrained from a statistical combination of all Higgs boson searches. Assuming supersymmetry exists, the future linear collider will deliver a wealth of precision data, which then can be used to measure the supersymmetry parameters with high precision. The requirements for the linear collider detector driven by expected physics processes are presented. A program designed for the extraction of the supersymmetry parameters from the measurements using an iterative fitting technique is introduced.
	Philip Bechtle (DESY)
	Tuesday, August 3, 2004
	12:30 PM, Orange Room

	"Truth or Consequences: The Emerging Science of the Top Quark"
	One of the most pessimistic people known to recorded Western history is William Ralph Inge, who served as Dean of St. Paul's Cathedral in London during the early 20th century. "Events in the past may be roughly divided into those which probably never happened and those which do not matter," he observed. If the Gloomy Dean is correct, what are we to make of the 1995 discovery of the top quark? Does the top quark matter in the grand scheme of things? Can we be sure that the "top quark" that was discovered was in fact the top quark of the standard model? With Run 2 at the Tevatron now well underway, we are starting a program that will turn our early explorations of top into hard science. I will discuss what we know about the top quark, recent measurements, and what we expect to learn in the near future.
	Ken Bloom (University of Nebraska) ppt
	Thursday, August 26, 2004
	12:30 PM, Orange Room

	"Results on K^+ -> pi^+ nu-bar nu from BNL E949"
	The decay K^+ -> pi^+ nu-bar nu is one of a handful of "golden'' processes that offer clear and unambiguous information on the CKM unitarity triangle. A precision measurement of its branching fraction by experiments is important to the understanding of the Standard Model picture of CP violation. The recent results on K^+ -> pi^+ nu-bar nu from Experiment 949 at Brookhaven National Laboratory will be presented.
	Jingliang Hu (TRIUMF) ps
	Tuesday, September 7, 2004
	12:30 PM, Orange Room

	"The Pierre Auger Cosmic Ray Observatory: Measuring the Highest Energy Cosmic Rays"
	The international Pierre Auger Cosmic Ray Observatory is poised to provide definitive measurements of the universe's highest energy particle population. Cosmic rays with energies near 10^20 eV have been observed in low numbers for more than 40 years, but their origin remains a profound mystery and the subject of intense theoretical speculation. The Auger Observatory surface array in Argentina is now 1/4 complete, and 1/2 of its air fluorescence detectors are operational. The Observatory already has greater collecting power than any previous cosmic ray detector, and its cumulative exposure will soon be the world's largest. The combination of both types of cosmic ray detectors minimizes systematic error in cosmic ray energy measurements, and it offers special sensitivity to the primary particle type. When Auger North and Auger South are complete, the Observatory will map the entire sky in detail.
	Paul Sommers ppt
	Tuesday, September 14, 2004
	12:30 PM, Orange Room

	SPECIAL Experimental Seminar! "The Hundred Flowers in Beijing: Summer 2004 Results from BaBar"
	Over the last year, with the introduction of trickle injection and other planned improvements to the PEP-II collider, BABAR has succeeded in doubling its recorded data sample, bringing the total sample to some 227 million B-anti-B meson pairs. This spectacular performance has resulted in what can best be described as a deluge of new and exciting physics results this summer for the International Conference on HEP in Beijing. This talk will review the highlights of these new results, including discovery of direct CP violation, a much improved look at CP violation in b to s Penguin channels, a first measurement of the unitarity angle alpha, and many more. We will also take a brief look at where this program is heading over the next few years and beyond, as BABAR continues to explore the world of flavor physics.
	David MacFarlane ppt
	Wednesday, September 15, 2004
	4:00 PM, PANOFSKY AUDITORIUM

	"Searches for Inclusive Non-charmed Pentaquark Production with the BaBar Detector"
	Since early in 2003, several experiments have presented evidence for the existence of a positive strangeness baryon state of mass around 1540 MeV/c^2 and width < 8 MeV, the Theta(1540), which decays to K+ n and K0 p. Such a state has minimum quark content u d u d sbar and consequently has been interpreted as the S = +1 member of the anti-decuplet of pentaquark states proposed by Diakonov et al. Subsequently, the NA49 experiment presented evidence for the S = -2 member of the anti-decuplet, the Cascade_5^(1860)^--, but this has yet to be observed in any other experiment. In this talk, we present preliminary results from searches for the production of the entire anti-decuplet of pentaquark states using data from e+ e- collisions obtained with the BABAR detector at the PEP-II Collider. No signal is observed for any of the states, and preliminary cross section limits for the Theta(1540) and Cascade_5^(1860^-- are given; these prove to be well below the cross section values for ordinary baryons of similar mass. In addition, a search has been carried out for the electroproduction of the Theta(1540) in the material of the BABAR detector. Event selection procedures are discussed in detail, preliminary results are presented and future plans discussed.
	Jonathon Coleman pdf
	Tuesday, September 28, 2004
	12:30 PM, Orange Room