Information for Ifr Barrel Upgrade
- November 11, 2002
- October 28, 2002
- Expected interaction lengths
- Expected Lambda vs. cos(theta) using
nominal algorithm, which requires that the last RPC be efficienct
- Expected Lambda vs. phi (barrel only)
using nominal algorithm.
- Plots with out the requirement on RPC eff.:
- Plots assuming layer 19 was completely off (and assuming all other RPC were working:
- Plots with new FWD (and no layer 19)
- Plots with new FWD but no belt chambers (and no layer 19)
- Plots with new FWD and strawman barrel (tbd)
- Material before the Ifr (according to the swimmer, the material
in front of layer 1)
- Simple GEANT simulation of muon and
pion penetration in iron (ie, punchthrough contribution only for pions).
The bands show 1,2,3 interaction length efficiencies.
- Barrel efficiency vs. p (Barrel theta requirement is [0.9,2.05])
- Barrel efficiency vs. run number (Barrel theta requirement is [0.9,2.05])
- Barrel efficiency vs. phi (at Emc)
- Barrel efficiency vs. Ifrphi (Ifrphi is phi at the Emc folded over according
to the 6 fold symmetry):
- Efficiency vs. cos(theta)
- Breakdown of pion fake rate
- Beam related backgrounds
- Fraction of Klongs that reach Ifr/Emc vs p. The number/plots here are
from 12.3.3d Bogus and are for barrel region Klongs. As this is
a gHit level study, no chamber efficiencies/analysis cuts are
- PhiGamma data/MC comparison plots
- FEC information/schematics
- Data vs. SP4 fake rate comparison
- Benefit of DeltaLambda
- For 2000 data using the (still in development) neural network selector.
Plotted is fake rate vs. efficiency for two networks: with (labeled 8) and without (labeled 7) DeltaLambda included.
The two plots are for low momentum (0.5-1.5 GeV) and high momentum (1.5-4.0 GeV).
- The same for 2001/2002 data
- Benefit of the strip multiplicity cut
Some generator level plots for benchmark physics modes with muons
- B to D*lnu
- B to pilnu
- B to rholnu
- B to X(u)nu
- B to Kll
- B to K*ll
- B to X(s)ll
- B to J/psiKS
- Ds to munu (from ccbar events)
Last updated: October 23, 2002. David Lange