Observation of radiative leptonic decay of the tau lepton

CLEO Collaboration

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Using 4.68 fb−1 of e+e annihilation data collected with the CLEO II detector at the Cornell Electron Storage Ring, we have studied τ radiative decays τ→ντμν¯μγ and τ-→ντeν¯eγ. For a 10 MeV minimum photon energy in the τ rest frame, the branching fraction for radiative τ decay to a muon or electron is measured to be (3.61±0.16±0.35)×10−3 or (1.75±0.06±0.17)×10−2, respectively. The branching fractions are in agreement with standard model theoretical predictions.

Original languageEnglish
Pages (from-to)830-834
Number of pages5
JournalPhysical Review Letters
Volume84
Issue number5
DOIs
Publication statusPublished - 2000 Jan 1

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leptons
decay
muons
electrons
detectors
photons
predictions
energy

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

CLEO Collaboration. / Observation of radiative leptonic decay of the tau lepton. In: Physical Review Letters. 2000 ; Vol. 84, No. 5. pp. 830-834.
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abstract = "Using 4.68 fb−1 of e+e− annihilation data collected with the CLEO II detector at the Cornell Electron Storage Ring, we have studied τ radiative decays τ−→ντμ−ν¯μγ and τ-→ντe−ν¯eγ. For a 10 MeV minimum photon energy in the τ rest frame, the branching fraction for radiative τ decay to a muon or electron is measured to be (3.61±0.16±0.35)×10−3 or (1.75±0.06±0.17)×10−2, respectively. The branching fractions are in agreement with standard model theoretical predictions.",
author = "{CLEO Collaboration} and T. Bergfeld and Eisenstein, {B. I.} and J. Ernst and Gladding, {G. E.} and Gollin, {G. D.} and Hans, {R. M.} and E. Johnson and I. Karliner and Marsh, {M. A.} and M. Palmer and C. Plager and C. Sedlack and M. Selen and Thaler, {J. J.} and J. Williams and Edwards, {K. W.} and R. Janicek and Patel, {P. M.} and Sadoff, {A. J.} and R. Ammar and P. Baringer and A. Bean and D. Besson and R. Davis and S. Kotov and I. Kravchenko and N. Kwak and X. Zhao and S. Anderson and Frolov, {V. V.} and Y. Kubota and Lee, {S. J.} and R. Mahapatra and O’neill, {J. J.} and R. Poling and T. Riehle and A. Smith and S. Ahmed and Alam, {M. S.} and Athar, {S. B.} and L. Jian and L. Ling and Mahmood, {A. H.} and M. Saleem and S. Timm and F. Wappler and A. Anastassov and Duboscq, {J. E.} and Gan, {K. K.} and Youngjoon Kwon",
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Observation of radiative leptonic decay of the tau lepton. / CLEO Collaboration.

In: Physical Review Letters, Vol. 84, No. 5, 01.01.2000, p. 830-834.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Observation of radiative leptonic decay of the tau lepton

AU - CLEO Collaboration

AU - Bergfeld, T.

AU - Eisenstein, B. I.

AU - Ernst, J.

AU - Gladding, G. E.

AU - Gollin, G. D.

AU - Hans, R. M.

AU - Johnson, E.

AU - Karliner, I.

AU - Marsh, M. A.

AU - Palmer, M.

AU - Plager, C.

AU - Sedlack, C.

AU - Selen, M.

AU - Thaler, J. J.

AU - Williams, J.

AU - Edwards, K. W.

AU - Janicek, R.

AU - Patel, P. M.

AU - Sadoff, A. J.

AU - Ammar, R.

AU - Baringer, P.

AU - Bean, A.

AU - Besson, D.

AU - Davis, R.

AU - Kotov, S.

AU - Kravchenko, I.

AU - Kwak, N.

AU - Zhao, X.

AU - Anderson, S.

AU - Frolov, V. V.

AU - Kubota, Y.

AU - Lee, S. J.

AU - Mahapatra, R.

AU - O’neill, J. J.

AU - Poling, R.

AU - Riehle, T.

AU - Smith, A.

AU - Ahmed, S.

AU - Alam, M. S.

AU - Athar, S. B.

AU - Jian, L.

AU - Ling, L.

AU - Mahmood, A. H.

AU - Saleem, M.

AU - Timm, S.

AU - Wappler, F.

AU - Anastassov, A.

AU - Duboscq, J. E.

AU - Gan, K. K.

AU - Kwon, Youngjoon

PY - 2000/1/1

Y1 - 2000/1/1

N2 - Using 4.68 fb−1 of e+e− annihilation data collected with the CLEO II detector at the Cornell Electron Storage Ring, we have studied τ radiative decays τ−→ντμ−ν¯μγ and τ-→ντe−ν¯eγ. For a 10 MeV minimum photon energy in the τ rest frame, the branching fraction for radiative τ decay to a muon or electron is measured to be (3.61±0.16±0.35)×10−3 or (1.75±0.06±0.17)×10−2, respectively. The branching fractions are in agreement with standard model theoretical predictions.

AB - Using 4.68 fb−1 of e+e− annihilation data collected with the CLEO II detector at the Cornell Electron Storage Ring, we have studied τ radiative decays τ−→ντμ−ν¯μγ and τ-→ντe−ν¯eγ. For a 10 MeV minimum photon energy in the τ rest frame, the branching fraction for radiative τ decay to a muon or electron is measured to be (3.61±0.16±0.35)×10−3 or (1.75±0.06±0.17)×10−2, respectively. The branching fractions are in agreement with standard model theoretical predictions.

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U2 - 10.1103/PhysRevLett.84.830

DO - 10.1103/PhysRevLett.84.830

M3 - Article

VL - 84

SP - 830

EP - 834

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 5

ER -