Published May 9, 1991
| Version v1
Journal article
Oberservation of the decay τ→pππντ
Creators
- Albrecht, H.1
- Ehrlichmann, H.1
- Hamacher, T.1
- Krueger, A.1
- Nau, A.1
- Nippe, A.1
- Reidenbach, M.1
- Schaefer, M.1
- Schroeder, H.1
- Schulz, H.D.1
- Sefkow, F.1
- Wurth, R.1
- Appuhn, R.D.2
- Hast, C.2
- Herrera, G.2
- Kolanoski, H.2
- Lange, A.2
- Lindner, A.2
- Mankel, R.2
- Schieber, M.2
- Schweda, G.2
- Siegmund, T.2
- Spaan, B.2
- Thurn, H.2
- Walter, A.2
- Wegener, D.2
- Paulini, M.3
- Reim, K.3
- Volland, U.3
- Wegener, H.3
- Mundt, R.4
- Oest, T.4
- Schmidt-Parzefall, W.4
- Funk, W.5
- Stiewe, J.5
- Werner, S.5
- Ball, S.6
- Gabriel, J.C.6
- Geyer, C.6
- Hoelscher, A.6
- Hoffmann, W.6
- Holzer, B.6
- Khan, S.6
- Knoepfle, K.T.6
- Spengler, J.6
- Britton, D.I.7
- Charlesworth, C.E.K.7
- Edwards, K.W.7
- Kapitza, H.7
- Krieger, P.7
- Kutschke, R.7
- MacFarlane, D.B.7
- Orr, R.S.7
- Parsons, J.A.7
- Patel, P.M.7
- Prentice, J.D.7
- Seidel, S.C.7
- Tsipolitis, G.7
- Tzamariudaki, K.7
- Van de Water, R.7
- Yoon, T.S.7
- Ressing, D.8
- Schael, S.8
- Schubert, K.R.8
- Strahl, K.8
- Waldi, R.8
- Weseler, S.8
- Bostjancic, B.9, 10
- Kernel, G.9, 10
- Krizan, P.9, 10
- Kriznic, E.9, 10
- Zivko, T.9, 10
- Cronstroem, H.I.11
- Joensson, L.11
- Babaev, A.12
- Balagura, V.12
- Danilov, M.12
- Droutskoy, A.12
- Fominykh, B.12
- Golutvin, A.12
- Gorelov, I.12
- Ratnikov, F.12
- Lubimov, V.12
- Rostovtsev, A.12
- Semonov, A.12
- Semenov, S.12
- Shevchencko, V.12
- Soloshenko, V.12
- Tichomirov, I.12
- Zaitsev, Yu.12
- Childers, R.13
- Darden, C.W.13
- ARGUS Collaboration
- 1. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany, F.R.)
- 2. Dortmund Univ. (Germany, F.R.). Inst. fuer Physik
- 3. Erlangen-Nuernberg Univ., Erlangen (Germany, F.R.). Physikalisches Inst.
- 4. Hamburg Univ. (Germany, F.R.). 2. Inst. fuer Experimentalphysik
- 5. Heidelberg Univ. (Germany, F.R.). Inst. fuer Hochenergiephysik
- 6. Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany, F.R.)
- 7. Institute of Particle Physics (Canada)
- 8. Karlsruhe Univ. (T.H.) (Germany, F.R.). Inst. fuer Experimentelle Kernphysik
- 9. Ljubljana Univ. (Yugoslavia). Oddelek za Fiziko
- 10. Institut Jozef Stefan, Ljubljana (Yugoslavia)
- 11. Lund Univ. (Sweden). Dept. of Physics
- 12. Institut Teoreticheskoj i Ehksperimental'noj Fiziki, Moscow (USSR)
- 13. South Carolina Univ., Columbia (USA)
Description
An analysis of the decay τ-→π-π-π+π0ντ has been performed with the ARGUS detector at the DORIS II storage ring. From a study of the two pion sybsystems we have found first evidence for the decays τ-→ρ0π-π0ντ, τ-→ρ-π+π-ντ, and τ-→ρ+π-π-ντ with relative contributions to the decay τ-→π-π-π+π0ντ of 0.30±0.04, 0.26±0.05, and 0.10±0.03, respectively. The fraction of the subchannel τ-→ωπ-ντ has been determined to be 0.33±0.05. The production of ρ mesons is enhanced by a factor of 1.9±0.3 over that of ω mesons. We conclude that in more than 81% (95%CL) of all τ-→π-π-π+π0ντ decays either a ρ or ω mesons is produced. (orig.)
Additional details
Publishing Information
- Journal Title
- Physics Letters, (Section) B
- Journal Volume
- 260
- Journal Issue
- 1/2
- Series
- Phys. Lett., B.
- Journal Page Range
- 259-264
- ISSN
- 0370-2693
- CODEN
- PYLBA
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 22079377
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- ANNIHILATION; BRANCHING RATIO; EFFECTIVE MASS; ELECTRON-POSITRON INTERACTIONS; EXPERIMENTAL DATA; GEV RANGE 01-10; GEV RANGE 10-100; HADRONIC PARTICLE DECAY; MASS SPECTRA; OMEGA-783 MESONS; PAIR PRODUCTION; PIONS; PIONS MINUS; PIONS NEUTRAL; PIONS PLUS; RHO-770 MESONS; SEMILEPTONIC DECAY; TAU NEUTRINOS; TAU PARTICLES
- Descriptors DEC
- BOSONS; DATA; DECAY; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; GEV RANGE; HADRONS; HEAVY LEPTONS; INFORMATION; INTERACTIONS; LEPTON-LEPTON INTERACTIONS; LEPTONS; MASS; MASSLESS PARTICLES; MESONS; NEUTRINOS; NUMERICAL DATA; PARTICLE DECAY; PARTICLE INTERACTIONS; PARTICLE PRODUCTION; PSEUDOSCALAR MESONS; SPECTRA; VECTOR MESONS; WEAK PARTICLE DECAY
Optional Information
- Collaborations
- ARGUS Collaboration.