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HFLAV-Tau Spring 2017 Report


References

[1]
Heavy Flavor Averaging Group, D. Asner et al., “Averages of b-hadron, c-hadron, and τ-lepton properties,” 2010.
[2]
Particle Data Group, C. Patrignani et al., “Review of particle physics,” Chin. Phys. C40 (2016) 100001.
[3]
Heavy Flavor Averaging Group, Y. Amhis et al., “Averages of b-hadron, c-hadron, and τ-lepton properties as of early 2012,” 2012.
[4]
Heavy Flavor Averaging Group, Y. Amhis et al., “Averages of b-hadron, c-hadron, and τ-lepton properties as of summer 2014,” 2014.
[5]
BaBar Collaboration, B. Aubert et al., “Measurement of BK0 π ντ) using the BaBar detector,” Nucl. Phys. Proc. Suppl. 189 (2009) 193, arXiv:0808.1121 [hep-ex].
[6]
BaBar Collaboration, S. Paramesvaran, “Selected topics in tau physics from BaBar,” 2009.
[7]
Belle Collaboration, S. Ryu et al., “Measurements of Branching Fractions of τ Lepton Decays with one or more KS0,” Phys. Rev. D89 (2014) 072009, arXiv:1402.5213 [hep-ex].
[8]
ALEPH Collaboration, R. Barate et al., “K0(S) production in tau decays,” Eur. Phys. J. C4 (1998) 29. http://cdsweb.cern.ch/record/346304.
[9]
Particle Data Group, K. Olive et al., “Review of particle physics,” Chin. Phys. C38 (2014) 090001.
[10]
ALEPH Collaboration, S. Schael et al., “Branching ratios and spectral functions of tau decays: Final ALEPH measurements and physics implications,” Phys. Rept. 421 (2005) 191, arXiv:hep-ex/0506072 [hep-ex]. HFLAV-tau uses measurements of τ → h X and τ → K X and obtains τ → π X by difference; the measurement of B( τ → 3h 2h+ π0 ντ (ex. K0)) has been read as (2.1 ± 0.7 ± 0.6) × 10−4 whereas PDG11 uses (2.1 ± 0.7 ± 0.9) × 10−4.
[11]
DELPHI Collaboration, P. Abreu et al., “Measurements of the leptonic branching fractions of the tau,” Eur. Phys. J. C10 (1999) 201.
[12]
L3 Collaboration, M. Acciarri et al., “Measurement of the τ branching fractions into leptons,” Phys. Lett. B507 (2001) 47, arXiv:hep-ex/0102023 [hep-ex].
[13]
OPAL Collaboration, G. Abbiendi et al., “A Measurement of the tau- –> mu- anti-nu(mu) nu(tau) branching ratios,” Phys. Lett. B551 (2003) 35, arXiv:hep-ex/0211066 [hep-ex].
[14]
ARGUS Collaboration, H. Albrecht et al., “Measurement of exclusive one prong and inclusive three prong branching ratios of the tau lepton,” Z. Phys. C53 (1992) 367.
[15]
BaBar Collaboration, B. Aubert et al., “Measurements of Charged Current Lepton Universality and |V(us)| using Tau Lepton Decays to e- nu(e)-bar nu(tau), mu-bar nu(mu)-bar nu(tau), pi- nu(tau) and K- nu(tau),” Phys. Rev. Lett. 105 (2010) 051602, arXiv:0912.0242 [hep-ex].
[16]
CLEO Collaboration, A. Anastassov et al., “Experimental test of lepton universality in tau decay,” Phys. Rev. D55 (1997) 2559. Erratum ibid. D58, 119903, (1998).
[17]
OPAL Collaboration, G. Abbiendi et al., “A Measurement of the tau- –> e- anti-neutrino(e) neutrino(tau) branching ratio,” Phys. Lett. B447 (1999) 134, arXiv:hep-ex/9812017 [hep-ex].
[18]
DELPHI Collaboration, P. Abreu et al., “A Study of the decays of tau leptons produced on the Z resonance at LEP,” Z. Phys. C55 (1992) 555.
[19]
L3 Collaboration, M. Acciarri et al., “Measurement of exclusive branching fractions of hadronic one space prong tau decays,” Phys. Lett. B345 (1995) 93.
[20]
OPAL Collaboration, G. Alexander et al., “Measurement of branching ratios and tau polarization from tau –> e neutrino anti-neutrino , tau –> mu neutrino anti-neutrino, and tau –> pi (K) neutrino decays at LEP,” Phys. Lett. B266 (1991) 201.
[21]
DELPHI Collaboration, J. Abdallah et al., “A Measurement of the tau hadronic branching ratios,” Eur. Phys. J. C46 (2006) 1, arXiv:hep-ex/0603044 [hep-ex].
[22]
OPAL Collaboration, K. Ackerstaff et al., “Measurement of the one prong hadronic tau branching ratios at LEP,” Eur. Phys. J. C4 (1998) 193, arXiv:hep-ex/9801029 [hep-ex].
[23]
ALEPH Collaboration, R. Barate et al., “One prong tau decays with kaons,” Eur. Phys. J. C10 (1999) 1, arXiv:hep-ex/9903014 [hep-ex].
[24]
CLEO Collaboration, M. Battle et al., “Measurement of Cabibbo suppressed decays of the tau lepton,” Phys. Rev. Lett. 73 (1994) 1079, arXiv:hep-ph/9403329 [hep-ph].
[25]
DELPHI Collaboration, P. Abreu et al., “Charged kaon production in tau decays at LEP,” Phys. Lett. B334 (1994) 435.
[26]
OPAL Collaboration, G. Abbiendi et al., “A Study of one prong tau decays with a charged kaon,” Eur. Phys. J. C19 (2001) 653, arXiv:hep-ex/0009017 [hep-ex].
[27]
Belle Collaboration, M. Fujikawa et al., “High-Statistics Study of the tau- –> pi- pi0 nu(tau) Decay,” Phys. Rev. D78 (2008) 072006, arXiv:0805.3773 [hep-ex].
[28]
CLEO Collaboration, M. Artuso et al., “A Measurement of the branching fraction Beta (tau+- –> h+- pi0 tau-neutrino),” Phys. Rev. Lett. 72 (1994) 3762, arXiv:hep-ph/9404310 [hep-ph].
[29]
BaBar Collaboration, B. Aubert et al., “Measurement of the τK π0 ντ branching fraction,” Phys. Rev. D76 (2007) 051104, arXiv:0707.2922 [hep-ex].
[30]
OPAL Collaboration, G. Abbiendi et al., “Measurement of the strange spectral function in hadronic tau decays,” Eur. Phys. J. C35 (2004) 437, arXiv:hep-ex/0406007 [hep-ex].
[31]
CLEO Collaboration, M. Procario et al., “Tau decays with one charged particle plus multiple pi0s,” Phys. Rev. Lett. 70 (1993) 1207.
[32]
OPAL Collaboration, R. Akers et al., “Measurements of the inclusive branching ratios of tau leptons to K0(s) and charged K* (892),” Phys. Lett. B339 (1994) 278.
[33]
CLEO Collaboration, T. Coan et al., “Decays of tau leptons to final states containing K(s)0 mesons,” Phys. Rev. D53 (1996) 6037.
[34]
L3 Collaboration, M. Acciarri et al., “One prong tau decays with neutral kaons,” Phys. Lett. B352 (1995) 487.
[35]
OPAL Collaboration, G. Abbiendi et al., “Tau decays with neutral kaons,” Eur. Phys. J. C13 (2000) 213, arXiv:hep-ex/9911029 [hep-ex].
[36]
ALEPH Collaboration, R. Barate et al., “Study of tau decays involving kaons, spectral functions and determination of the strange quark mass,” Eur. Phys. J. C11 (1999) 599, arXiv:hep-ex/9903015 [hep-ex].
[37]
BaBar Collaboration, J. P. Lees et al., “The branching fraction of τ → π KS0 KS00) ντ decays,” Phys. Rev. D86 (2012) 092013, arXiv:1208.0376 [hep-ex].
[38]
CELLO Collaboration, H. Behrend et al., “Tau production and decay with the CELLO detector at PETRA,” Phys. Lett. B222 (1989) 163.
[39]
L3 Collaboration, B. Adeva et al., “Decay properties of tau leptons measured at the Z0 resonance,” Phys. Lett. B265 (1991) 451.
[40]
TPC/Two Gamma Collaboration, H. Aihara et al., “Measurement of τ branching ratios,” Phys. Rev. D35 (1987) 1553.
[41]
L3 Collaboration, P. Achard et al., “Measurement of the topological branching fractions of the τ lepton at LEP,” Phys. Lett. B519 (2001) 189, arXiv:hep-ex/0107055 [hep-ex].
[42]
OPAL Collaboration, R. Akers et al., “Measurement of the tau- –> h- h+ h- tau-neutrino and tau- –> h- h+ h- >= 1 pi0 tau-neutrino branching ratios,” Z. Phys. C68 (1995) 555.
[43]
CLEO Collaboration, R. Balest et al., “Measurements of the decays tau- –> h- h+ h- tau-neutrino and tau- –> h- h+ h- pi0 tau-neutrino,” Phys. Rev. Lett. 75 (1995) 3809.
[44]
BaBar Collaboration, B. Aubert et al., “Exclusive branching fraction measurements of semileptonic tau decays into three charged hadrons, tau- –> phi pi- nu(tau) and tau- –> phi K- nu(tau),” Phys. Rev. Lett. 100 (2008) 011801, arXiv:0707.2981 [hep-ex].
[45]
Belle Collaboration, M. Lee et al., “Measurement of the branching fractions and the invariant mass distributions for τhh+hντ decays,” Phys. Rev. D81 (2010) 113007, arXiv:1001.0083 [hep-ex].
[46]
CLEO Collaboration, R. A. Briere et al., “Branching fractions of tau leptons decays to three charged hadrons,” Phys. Rev. Lett. 90 (2003) 181802, arXiv:hep-ex/0302028 [hep-ex].
[47]
CLEO Collaboration, K. Edwards et al., “Resonant structure of tau –> three pi pi0 neutrino(tau) and tau –> omega pi neutrino(tau) decays,” Phys. Rev. D61 (2000) 072003, arXiv:hep-ex/9908024 [hep-ex].
[48]
CLEO Collaboration, D. Bortoletto et al., “Measurement of the decay tau- –> pi- pi+ pi- 2 pi0 tau-neutrino,” Phys. Rev. Lett. 71 (1993) 1791.
[49]
CLEO Collaboration, A. Anastassov et al., “Study of tau decays to six pions and neutrino,” Phys. Rev. Lett. 86 (2001) 4467, arXiv:hep-ex/0010025 [hep-ex].
[50]
CLEO Collaboration, S. Richichi et al., “Study of three prong hadronic tau decays with charged kaons,” Phys. Rev. D60 (1999) 112002, arXiv:hep-ex/9810026 [hep-ex].
[51]
TPC/Two Gamma Collaboration, D. A. Bauer et al., “Measurement of the kaon content of three prong tau decays,” Phys. Rev. D50 (1994) 13.
[52]
ALEPH Collaboration, R. Barate et al., “Three prong tau decays with charged kaons,” Eur. Phys. J. C1 (1998) 65.
[53]
CLEO Collaboration, K. E. Arms et al., “Study of tau decays to four-hadron final states with kaons,” Phys. Rev. Lett. 94 (2005) 241802, arXiv:hep-ex/0501042 [hep-ex].
[54]
OPAL Collaboration, G. Abbiendi et al., “A Study of three prong tau decays with charged kaons,” Eur. Phys. J. C13 (2000) 197, arXiv:hep-ex/9908013 [hep-ex].
[55]
CLEO Collaboration, D. Gibaut et al., “Study of the five charged pion decay of the tau lepton,” Phys. Rev. Lett. 73 (1994) 934.
[56]
B. Bylsma et al., “Limit on tau decay to seven charged particles,” Phys. Rev. D35 (1987) 2269.
[57]
ARGUS Collaboration, H. Albrecht et al., “An Improved Upper Limit on the tau-neutrino Mass from the Decay tau- –> pi- pi- pi- pi+ pi+ tau-neutrino,” Phys. Lett. B202 (1988) 149.
[58]
OPAL Collaboration, K. Ackerstaff et al., “Measurement of tau branching ratios to five charged hadrons,” Eur. Phys. J. C8 (1999) 183, arXiv:hep-ex/9808011 [hep-ex].
[59]
ALEPH Collaboration, D. Buskulic et al., “A Study of tau decays involving eta and omega mesons,” Z. Phys. C74 (1997) 263.
[60]
Belle Collaboration, K. Inami et al., “Precise measurement of hadronic tau-decays with an eta meson,” Phys. Lett. B672 (2009) 209, arXiv:0811.0088 [hep-ex].
[61]
CLEO Collaboration, M. Artuso et al., “Measurement of tau decays involving eta mesons,” Phys. Rev. Lett. 69 (1992) 3278.
[62]
BaBar Collaboration, P. del Amo Sanchez et al., “Studies of tau- –> eta K-nu and tau- –> eta pi- nu(tau) at BaBar and a search for a second-class current,” Phys. Rev. D83 (2011) 032002, arXiv:1011.3917 [hep-ex].
[63]
CLEO Collaboration, J. E. Bartelt et al., “First observation of the decay tau- –> K- eta tau-neutrino,” Phys. Rev. Lett. 76 (1996) 4119.
[64]
CLEO Collaboration, M. Bishai et al., “First observation of the decay tau- –> K*- eta tau-neutrino,” Phys. Rev. Lett. 82 (1999) 281, arXiv:hep-ex/9809012 [hep-ex].
[65]
CLEO Collaboration, P. S. Baringer et al., “Production of eta and omega mesons in tau decay and a search for second class currents,” Phys. Rev. Lett. 59 (1987) 1993.
[66]
ALEPH Collaboration, D. Buskulic et al., “Tau hadronic branching ratios,” Z. Phys. C70 (1996) 579.
[67]
BaBar Collaboration, J. P. Lees et al., “Study of high-multiplicity 3-prong and 5-prong tau decays at BaBar,” Phys. Rev. D86 (2012) 092010, arXiv:1209.2734 [hep-ex].
[68]
Belle Collaboration, K. Belous et al., “Measurement of the τ-lepton lifetime at Belle,” Phys. Rev. Lett. 112 (2014) 031801, arXiv:1310.8503 [hep-ex].
[69]
W. Marciano and A. Sirlin, “Electroweak Radiative Corrections to tau Decay,” Phys. Rev. Lett. 61 (1988) 1815.
[70]
A. Pich, “Precision Tau Physics,” Prog. Part. Nucl. Phys. 75 (2014) 41, arXiv:1310.7922 [hep-ph].
[71]
A. Ferroglia, C. Greub, A. Sirlin, and Z. Zhang, “Contributions of the W-boson propagator to µ and τ leptonic decay rates,” Phys. Rev. D88 (2013) 033012, arXiv:1307.6900 [hep-ph].
[72]
M. Fael, L. Mercolli, and M. Passera, “W-propagator corrections to µ and τ leptonic decays,” Phys. Rev. D88 (2013) 093011, arXiv:1310.1081 [hep-ph].
[73]
W. J. Marciano and A. Sirlin, “Radiative corrections to πℓ 2 decays,” Phys. Rev. Lett. 71 (1993) 3629.
[74]
R. Decker and M. Finkemeier, “Radiative corrections to the decay τ → π (K) ντ,” Phys. Lett. B334 (1994) 199.
[75]
R. Decker and M. Finkemeier, “Short and long distance effects in the decay τ → π ντ(γ),” Nucl. Phys. B438 (1995) 17, arXiv:hep-ph/9403385.
[76]
R. Decker and M. Finkemeier, “Radiative corrections to the decay τ → π ντ,” Nucl. Phys. Proc. Suppl. 40 (1995) 453, arXiv:hep-ph/9411316 [hep-ph].
[77]
M. Davier, A. Hocker, and Z. Zhang, “The Physics of hadronic tau decays,” Rev. Mod. Phys. 78 (2006) 1043, arXiv:hep-ph/0507078 [hep-ph].
[78]
FlaviaNet working group on kaon decays, M. Antonelli et al., “An Evaluation of |Vus| and precise tests of the Standard Model from world data on leptonic and semileptonic kaon decays,” Eur. Phys. J. C69 (2010) 399, arXiv:1005.2323 [hep-ph].
[79]
E. Gamiz, M. Jamin, A. Pich, J. Prades, and F. Schwab, “Determination of m(s) and |V(us)| from hadronic tau decays,” JHEP 01 (2003) 060, arXiv:hep-ph/0212230 [hep-ph].
[80]
E. Gamiz, M. Jamin, A. Pich, J. Prades, and F. Schwab, “V(us) and m(s) from hadronic tau decays,” Phys. Rev. Lett. 94 (2005) 011803, arXiv:hep-ph/0408044 [hep-ph].
[81]
E. Gamiz, M. Jamin, A. Pich, J. Prades, and F. Schwab, “|V(us)| and m(s) from hadronic tau decays,” Nucl. Phys. Proc. Suppl. 169 (2007) 85, arXiv:hep-ph/0612154.
[82]
E. Gamiz, M. Jamin, A. Pich, J. Prades, and F. Schwab, “Theoretical progress on the Vus determination from tau decays,” PoS KAON (2008) 008, arXiv:0709.0282 [hep-ph].
[83]
K. Maltman, “A Critical look at Vus determinations from hadronic τ decay data,” Nucl. Phys. Proc. Suppl. 218 (2011) 146, arXiv:1011.6391 [hep-ph].
[84]
J. C. Hardy and I. S. Towner, “Superallowed 0+→ 0+ nuclear β decays: 2014 critical survey, with precise results for Vud and CKM unitarity,” Phys. Rev. C91 (2015) 025501, arXiv:1411.5987 [nucl-ex].
[85]
FLAG working group, S. Aoki et al., “Review of lattice results concerning low-energy particle physics,” Eur. Phys. J. C77 (2017) 112, arXiv:1607.00299 [hep-lat]. see also http://itpwiki.unibe.ch/flag/.
[86]
V. Cirigliano and H. Neufeld, “A note on isospin violation in Pl2(gamma) decays,” Phys. Lett. B700 (2011) 7, arXiv:1102.0563 [hep-ph].
[87]
W. J. Marciano, “Precise determination of |V(us)| from lattice calculations of pseudoscalar decay constants,” Phys. Rev. Lett. 93 (2004) 231803, arXiv:hep-ph/0402299.
[88]
M. Jamin, A. Pich, and J. Portoles, “What can be learned from the Belle spectrum for the decay τ → ντKS π,” Phys. Lett. B664 (2008) 78, arXiv:0803.1786 [hep-ph].
[89]
M. Antonelli, V. Cirigliano, A. Lusiani, and E. Passemar, “Predicting the τ strange branching ratios and implications for Vus,” JHEP 10 (2013) 070, arXiv:1304.8134 [hep-ph].
[90]
K. Maltman, R. J. Hudspith, R. Lewis, C. E. Wolfe, and J. Zanotti, “A resolution of the inclusive flavor-breaking sum rule τ Vus puzzle,” arXiv:1510.06954 [hep-ph].
[91]
R. J. Hudspith, R. Lewis, K. Maltman, and J. Zanotti, “A resolution of the inclusive flavor-breaking τ |Vus| puzzle,” arXiv:1702.01767 [hep-ph].
[92]
BaBar Collaboration, B. Aubert et al., “Searches for Lepton Flavor Violation in the Decays tau+- –> e+- gamma and tau+- –> mu+- gamma,” Phys. Rev. Lett. 104 (2010) 021802, arXiv:0908.2381 [hep-ex].
[93]
Belle Collaboration, K. Hayasaka et al., “New search for tau –> mu gamma and tau –> e gamma decays at Belle,” Phys. Lett. B666 (2008) 16, arXiv:0705.0650 [hep-ex].
[94]
BaBar Collaboration, B. Aubert et al., “Search for Lepton Flavor Violating Decays τ±→ ℓ±π0, ℓ±η, ℓ±η,” Phys. Rev. Lett. 98 (2007) 061803, arXiv:hep-ex/0610067 [hep-ex].
[95]
Belle Collaboration, Y. Miyazaki et al., “Search for lepton flavor violating tau- decays into l- eta, l- eta-prime and l- pi0,” Phys. Lett. B648 (2007) 341, arXiv:hep-ex/0703009 [hep-ex].
[96]
BaBar Collaboration, B. Aubert et al., “Search for Lepton Flavor Violating Decays tau –> l- K0(s) with the BABAR Experiment,” Phys. Rev. D79 (2009) 012004, arXiv:0812.3804 [hep-ex].
[97]
Belle Collaboration, Y. Miyazaki et al., “Search for Lepton Flavor Violating tau- Decays into ℓ-K0s and ℓ-K0sK0s,” Phys. Lett. B692 (2010) 4, arXiv:1003.1183 [hep-ex].
[98]
BaBar Collaboration, B. Aubert et al., “Improved limits on lepton flavor violating tau decays to l phi, l rho, l K* and l anti-K*,” Phys. Rev. Lett. 103 (2009) 021801, arXiv:0904.0339 [hep-ex].
[99]
Belle Collaboration, Y. Miyazaki, “Search for Lepton-Flavor-Violating tau Decays into a Lepton and a Vector Meson,” Phys. Lett. B699 (2011) 251, arXiv:1101.0755 [hep-ex].
[100]
BaBar Collaboration, B. Aubert et al., “Search for lepton flavor violating decays tau+- –> l+- omega (l = e, mu),” Phys. Rev. Lett. 100 (2008) 071802, arXiv:0711.0980 [hep-ex].
[101]
Belle Collaboration, Y. Miyazaki et al., “Search for Lepton-Flavor-Violating tau Decays into Lepton and f0(980) Meson,” Phys. Lett. B672 (2009) 317, arXiv:0810.3519 [hep-ex].
[102]
BaBar Collaboration, J. P. Lees et al., “Limits on tau Lepton-Flavor Violating Decays in three charged leptons,” Phys. Rev. D81 (2010) 111101, arXiv:1002.4550 [hep-ex].
[103]
Belle Collaboration, K. Hayasaka et al., “Search for Lepton Flavor Violating Tau Decays into Three Leptons with 719 Million Produced Tau+Tau- Pairs,” Phys. Lett. B687 (2010) 139, arXiv:1001.3221 [hep-ex].
[104]
ATLAS Collaboration, G. Aad et al., “Probing lepton flavour violation via neutrinoless τ → 3µ decays with the ATLAS detector,” Eur. Phys. J. C76 (2016) 232, arXiv:1601.03567 [hep-ex].
[105]
LHCb Collaboration, R. Aaij et al., “Search for the lepton flavour violating decay τ→ µµ+µ,” JHEP 02 (2015) 121, arXiv:1409.8548 [hep-ex].
[106]
BaBar Collaboration, B. Aubert et al., “Search for lepton-flavor and lepton-number violation in the decay τ → ℓh±h′ −,” Phys. Rev. Lett. 95 (2005) 191801, arXiv:hep-ex/0506066 [hep-ex].
[107]
Belle Collaboration, Y. Miyazaki et al., “Search for Lepton-Flavor-Violating and Lepton-Number-Violating τ → ℓ h h Decay Modes,” Phys. Lett. B719 (2013) 346, arXiv:1206.5595 [hep-ex].
[108]
Belle Collaboration, Y. Miyazaki et al., “Search for lepton and baryon number violating tau- decays into anti-Lambda pi- and Lambda pi-,” Phys. Lett. B632 (2006) 51, arXiv:hep-ex/0508044 [hep-ex].
[109]
LHCb Collaboration, R. Aaij et al., “Searches for violation of lepton flavour and baryon number in tau lepton decays at LHCb,” Phys. Lett. B724 (2013) 36, arXiv:1304.4518 [hep-ex].
[110]
A. L. Read, “Presentation of search results: The CL(s) technique,” J. Phys. G28 (2002) 2693.
[111]
S. Banerjee, B. Pietrzyk, J. M. Roney, and Z. Was, “Tau and muon pair production cross-sections in electron- positron annihilations at √s = 10.58 GeV,” Phys. Rev. D77 (2008) 054012, arXiv:0706.3235 [hep-ph].
[112]
CDF Collaboration, T. Junk, “Sensitivity, Exclusion and Discovery with Small Signals, Large Backgrounds, and Large Systematic Uncertainties.” CDF note 8128, 2007.

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HFLAV-Tau Spring 2017 Report