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Measurement of exclusive one-prong and inclusive three-prong branching ratios of the {tau} lepton

Technical Report:

Abstract

Using the ARGUS detector at the DORIS II storage ring, we have studied {tau} decays with one or three charged particles in the final state, obtaining the following values for the branching ratios: BR({tau}{sup -} {yields} e{sup -}anti {nu}{sub e}{nu}{sub {tau}}) = (17.3 {+-} 0.4 {+-} 0.5)%, BR({tau}{sup -} {yields} {mu}{sup -}anti {nu}{sub {mu}}{nu}{sub {tau}}) = (17.2 {+-} 0.4 {+-} 0.5)%. BR({tau}{sup -} {yields} {pi}{sup -}{nu}{sub {tau}}) + BR({tau}{sup -} {yields} K{sup -}{nu}{sub {tau}}) = (11.7 {+-} 0.6 {+-} 0.8)%, and BR({tau}{sup -} {yields} 3 - prong) = (13.3 {+-} 0.3 {+-} 0.8)%. These measurements confirm the present world average with a precision, in each case, comparable to the error on the combination of all previous results. (orig.).
Authors:
Albrecht, H; Ehrlichmann, H; Hamacher, T; Krueger, A; Nau, A; Nippe, A; Reidenbach, M; Schaefer, M; Schroeder, H; Schulz, H D; Sefkow, F; Wurth, R; [1]  Appuhn, R D; Hast, C; Herrera, G; Kolanoski, H; Lange, A; Lindner, A; Mankel, R; Schieber, M; Siegmund, T; Spaan, B; Thurn, H; Toepfer, D; Walther, A; Wegener, D; [2]  Paulini, M; Reim, K; Volland, U; Wegener, H; [3]  Mundt, R; Oest, T; Schmidt-Parzefall, W; [4]  Funk, W; Stiewe, J; Werner, S; [5]  Ball, S; Gabriel, J C; Geyer, C; Hoelscher, A; Hofmann, W; Holzer, B; Khan, S; Knoepfle, K T; Spengler, J; [6]  Britton, D I; Charlesworth, C E.K.; Edwards, K W; Kapitza, H; Krieger, P; Kutschke, R; MacFarlane, D B; Orr, R S; Patel, P M; Prentice, J D; Seidel, S C; Tsipolitis, G; Tzamariudaki, K; Van de Water, R G; Yoon, T S; [7]  Ressing, D; Schael, S; Schubert, K R; Strahl, K; Waldi, R; Weseler, S; [8]  Bostjancic, B; Kernel, G; Krizan, P; Kriznic, E; Podobnik, T; Zivko, T; [9]  Cronstroem, H I; Joensson, L; [10]  Balagura, V; Danilov, M; Droutskoy, A; Fominykh, B; Golutvin, A; Gorelov, I; Ratnikov, F; Lubimov, V; Pakhlov, P; Rostovtsev, A; Semenov, A; Semenov, S; Shevchenko, V; Soloshenko, V; Tichomirov, I; Zaitsev, Yu; [11]  Childers, R; Darden, C W; [12]  ARGUS Collaboration
  1. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
  2. Dortmund Univ. (Germany). Inst. fuer Physik
  3. Erlangen-Nuernberg Univ., Erlangen (Germany). Physikalisches Inst.
  4. Hamburg Univ. (Germany). 2. Inst. fuer Experimentalphysik
  5. Heidelberg Univ. (Germany). Inst. fuer Hochenergiephysik
  6. Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany)
  7. Institute of Particle Physics (Canada)
  8. Karlsruhe Univ. (T.H.) (Germany). Inst. fuer Experimentelle Kernphysik
  9. Institut Jozef Stefan, Ljubljana (Yugoslavia)
  10. Lund Univ. (Sweden). Inst. of Physics
  11. Institut Teoreticheskoj i Ehksperimental`noj Fiziki, Moscow (USSR)
  12. South Carolina Univ., Columbia (United States)
Publication Date:
Jul 01, 1991
Product Type:
Technical Report
Report Number:
DESY-91-084
Reference Number:
SCA: 662370; 662430; PA: DEN-92:000896; SN: 92000657019
Resource Relation:
Other Information: PBD: Jul 1991
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; TAU PARTICLES; WEAK PARTICLE DECAY; ELECTRON-POSITRON INTERACTIONS; ANNIHILATION; BRANCHING RATIO; EXPERIMENTAL DATA; LEPTONIC DECAY; SEMILEPTONIC DECAY; EXCLUSIVE INTERACTIONS; INCLUSIVE INTERACTIONS; EFFECTIVE MASS; MASS SPECTRA; GEV RANGE 01-10; GEV RANGE 10-100; PAIR PRODUCTION; KAONS MINUS; PIONS MINUS; PIONS PLUS; ELECTRON ANTINEUTRINOS; MUON ANTINEUTRINOS; ELECTRONS; TAU NEUTRINOS; MUONS MINUS; WEAK HADRONIC DECAY; 662370; 662430; DECAYS OF LEPTONS; PROPERTIES OF LEPTONS
OSTI ID:
10116023
Research Organizations:
Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
Country of Origin:
Germany
Language:
English
Other Identifying Numbers:
Other: ON: DE92766136; CNN: Contract BMFT 054DO51P; BMFT 054ER12P; BMFT 055HD21P; BMFT 054KA17P; DE-AS09-80ER10690; TRN: DE9200896
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
DEN
Size:
20 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Albrecht, H, Ehrlichmann, H, Hamacher, T, Krueger, A, Nau, A, Nippe, A, Reidenbach, M, Schaefer, M, Schroeder, H, Schulz, H D, Sefkow, F, Wurth, R, Appuhn, R D, Hast, C, Herrera, G, Kolanoski, H, Lange, A, Lindner, A, Mankel, R, Schieber, M, Siegmund, T, Spaan, B, Thurn, H, Toepfer, D, Walther, A, Wegener, D, Paulini, M, Reim, K, Volland, U, Wegener, H, Mundt, R, Oest, T, Schmidt-Parzefall, W, Funk, W, Stiewe, J, Werner, S, Ball, S, Gabriel, J C, Geyer, C, Hoelscher, A, Hofmann, W, Holzer, B, Khan, S, Knoepfle, K T, Spengler, J, Britton, D I, Charlesworth, C E.K., Edwards, K W, Kapitza, H, Krieger, P, Kutschke, R, MacFarlane, D B, Orr, R S, Patel, P M, Prentice, J D, Seidel, S C, Tsipolitis, G, Tzamariudaki, K, Van de Water, R G, Yoon, T S, Ressing, D, Schael, S, Schubert, K R, Strahl, K, Waldi, R, Weseler, S, Bostjancic, B, Kernel, G, Krizan, P, Kriznic, E, Podobnik, T, Zivko, T, Cronstroem, H I, Joensson, L, Balagura, V, Danilov, M, Droutskoy, A, Fominykh, B, Golutvin, A, Gorelov, I, Ratnikov, F, Lubimov, V, Pakhlov, P, Rostovtsev, A, Semenov, A, Semenov, S, Shevchenko, V, Soloshenko, V, Tichomirov, I, Zaitsev, Yu, Childers, R, Darden, C W, and ARGUS Collaboration. Measurement of exclusive one-prong and inclusive three-prong branching ratios of the {tau} lepton. Germany: N. p., 1991. Web.
Albrecht, H, Ehrlichmann, H, Hamacher, T, Krueger, A, Nau, A, Nippe, A, Reidenbach, M, Schaefer, M, Schroeder, H, Schulz, H D, Sefkow, F, Wurth, R, Appuhn, R D, Hast, C, Herrera, G, Kolanoski, H, Lange, A, Lindner, A, Mankel, R, Schieber, M, Siegmund, T, Spaan, B, Thurn, H, Toepfer, D, Walther, A, Wegener, D, Paulini, M, Reim, K, Volland, U, Wegener, H, Mundt, R, Oest, T, Schmidt-Parzefall, W, Funk, W, Stiewe, J, Werner, S, Ball, S, Gabriel, J C, Geyer, C, Hoelscher, A, Hofmann, W, Holzer, B, Khan, S, Knoepfle, K T, Spengler, J, Britton, D I, Charlesworth, C E.K., Edwards, K W, Kapitza, H, Krieger, P, Kutschke, R, MacFarlane, D B, Orr, R S, Patel, P M, Prentice, J D, Seidel, S C, Tsipolitis, G, Tzamariudaki, K, Van de Water, R G, Yoon, T S, Ressing, D, Schael, S, Schubert, K R, Strahl, K, Waldi, R, Weseler, S, Bostjancic, B, Kernel, G, Krizan, P, Kriznic, E, Podobnik, T, Zivko, T, Cronstroem, H I, Joensson, L, Balagura, V, Danilov, M, Droutskoy, A, Fominykh, B, Golutvin, A, Gorelov, I, Ratnikov, F, Lubimov, V, Pakhlov, P, Rostovtsev, A, Semenov, A, Semenov, S, Shevchenko, V, Soloshenko, V, Tichomirov, I, Zaitsev, Yu, Childers, R, Darden, C W, & ARGUS Collaboration. Measurement of exclusive one-prong and inclusive three-prong branching ratios of the {tau} lepton. Germany.
Albrecht, H, Ehrlichmann, H, Hamacher, T, Krueger, A, Nau, A, Nippe, A, Reidenbach, M, Schaefer, M, Schroeder, H, Schulz, H D, Sefkow, F, Wurth, R, Appuhn, R D, Hast, C, Herrera, G, Kolanoski, H, Lange, A, Lindner, A, Mankel, R, Schieber, M, Siegmund, T, Spaan, B, Thurn, H, Toepfer, D, Walther, A, Wegener, D, Paulini, M, Reim, K, Volland, U, Wegener, H, Mundt, R, Oest, T, Schmidt-Parzefall, W, Funk, W, Stiewe, J, Werner, S, Ball, S, Gabriel, J C, Geyer, C, Hoelscher, A, Hofmann, W, Holzer, B, Khan, S, Knoepfle, K T, Spengler, J, Britton, D I, Charlesworth, C E.K., Edwards, K W, Kapitza, H, Krieger, P, Kutschke, R, MacFarlane, D B, Orr, R S, Patel, P M, Prentice, J D, Seidel, S C, Tsipolitis, G, Tzamariudaki, K, Van de Water, R G, Yoon, T S, Ressing, D, Schael, S, Schubert, K R, Strahl, K, Waldi, R, Weseler, S, Bostjancic, B, Kernel, G, Krizan, P, Kriznic, E, Podobnik, T, Zivko, T, Cronstroem, H I, Joensson, L, Balagura, V, Danilov, M, Droutskoy, A, Fominykh, B, Golutvin, A, Gorelov, I, Ratnikov, F, Lubimov, V, Pakhlov, P, Rostovtsev, A, Semenov, A, Semenov, S, Shevchenko, V, Soloshenko, V, Tichomirov, I, Zaitsev, Yu, Childers, R, Darden, C W, and ARGUS Collaboration. 1991. "Measurement of exclusive one-prong and inclusive three-prong branching ratios of the {tau} lepton." Germany.
@misc{etde_10116023,
title = {Measurement of exclusive one-prong and inclusive three-prong branching ratios of the {tau} lepton}
author = {Albrecht, H, Ehrlichmann, H, Hamacher, T, Krueger, A, Nau, A, Nippe, A, Reidenbach, M, Schaefer, M, Schroeder, H, Schulz, H D, Sefkow, F, Wurth, R, Appuhn, R D, Hast, C, Herrera, G, Kolanoski, H, Lange, A, Lindner, A, Mankel, R, Schieber, M, Siegmund, T, Spaan, B, Thurn, H, Toepfer, D, Walther, A, Wegener, D, Paulini, M, Reim, K, Volland, U, Wegener, H, Mundt, R, Oest, T, Schmidt-Parzefall, W, Funk, W, Stiewe, J, Werner, S, Ball, S, Gabriel, J C, Geyer, C, Hoelscher, A, Hofmann, W, Holzer, B, Khan, S, Knoepfle, K T, Spengler, J, Britton, D I, Charlesworth, C E.K., Edwards, K W, Kapitza, H, Krieger, P, Kutschke, R, MacFarlane, D B, Orr, R S, Patel, P M, Prentice, J D, Seidel, S C, Tsipolitis, G, Tzamariudaki, K, Van de Water, R G, Yoon, T S, Ressing, D, Schael, S, Schubert, K R, Strahl, K, Waldi, R, Weseler, S, Bostjancic, B, Kernel, G, Krizan, P, Kriznic, E, Podobnik, T, Zivko, T, Cronstroem, H I, Joensson, L, Balagura, V, Danilov, M, Droutskoy, A, Fominykh, B, Golutvin, A, Gorelov, I, Ratnikov, F, Lubimov, V, Pakhlov, P, Rostovtsev, A, Semenov, A, Semenov, S, Shevchenko, V, Soloshenko, V, Tichomirov, I, Zaitsev, Yu, Childers, R, Darden, C W, and ARGUS Collaboration}
abstractNote = {Using the ARGUS detector at the DORIS II storage ring, we have studied {tau} decays with one or three charged particles in the final state, obtaining the following values for the branching ratios: BR({tau}{sup -} {yields} e{sup -}anti {nu}{sub e}{nu}{sub {tau}}) = (17.3 {+-} 0.4 {+-} 0.5)%, BR({tau}{sup -} {yields} {mu}{sup -}anti {nu}{sub {mu}}{nu}{sub {tau}}) = (17.2 {+-} 0.4 {+-} 0.5)%. BR({tau}{sup -} {yields} {pi}{sup -}{nu}{sub {tau}}) + BR({tau}{sup -} {yields} K{sup -}{nu}{sub {tau}}) = (11.7 {+-} 0.6 {+-} 0.8)%, and BR({tau}{sup -} {yields} 3 - prong) = (13.3 {+-} 0.3 {+-} 0.8)%. These measurements confirm the present world average with a precision, in each case, comparable to the error on the combination of all previous results. (orig.).}
place = {Germany}
year = {1991}
month = {Jul}
}