Published January 1994
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Observation of polarization effects in Λ+c semileptonic decay
Creators
- Albrecht, H.1
- Ehrlichmann, H.1
- Hamacher, T.1
- Hofmann, R.P.1
- Kirchhoff, T.1
- Mankel, R.1
- Nau, A.1
- Nowak, S.1
- Schroeder, H.1
- Schulz, H.D.1
- Walter, M.1
- Wurth, R.1
- Hast, C.2
- Kapitza, H.2
- Kolanoski, H.2
- Kosche, A.2
- Lange, A.2
- Lindner, A.2
- Schieber, M.2
- Siegmund, T.2
- Spaan, B.2
- Thurn, H.2
- Toepfer, D.2
- Wegener, D.2
- Eckstein, P.3
- Schubert, K.R.3
- Schwierz, R.3
- Waldi, R.3
- Reim, K.4
- Wegener, H.4
- Eckmann, R.5
- Kuipers, H.5
- Mai, O.5
- Mundt, R.5
- Oest, T.5
- Reiner, R.5
- Schmidt-Parzefall, W.5
- Stiewe, J.6
- Werner, S.6
- Ehret, K.7
- Hofmann, W.7
- Huepper, A.7
- Khan, S.7
- Knoepfle, K.T.7
- Seeger, M.7
- Spengler, J.7
- Krieger, P.8
- MacFarlane, D.B.8
- Prentice, J.D.8
- Saull, P.R.B.8
- Tzamariudaki, K.8
- Van de Water, R.G.8
- Yoon, T.S.8
- Frankl, C.9
- Ressing, D.9
- Schmidtler, M.9
- Schneider, M.9
- Weseler, S.9
- Kernel, G.10
- Krizan, P.10
- Kriznic, E.10
- Podobnik, T.10
- Zivko, T.10
- Balagura, V.11
- Belyaev, I.11
- Chechelnitsky, S.11
- Danilov, M.11
- Droutskoy, A.11
- Gershtein, Yu.11
- Golutvin, A.11
- Korolko, I.11
- Kostina, G.11
- Litvintsev, D.11
- Lubimov, V.11
- Pakhlov, P.11
- Semenov, S.11
- Snizhko, A.11
- Tichomirov, I.11
- Zaitsev, Yu.11
- Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
- ARGUS Collaboration
- 1. DESY, Hamburg (Germany)
- 2. Inst. fuer Physik, Dortmund Univ. (Germany)
- 3. Inst. fuer Kern- und Teilchenphysik, Technische Univ. Dresden (Germany)
- 4. Physikalisches Inst., Erlangen-Nuernberg Univ., Erlangen (Germany)
- 5. 2. Inst. fuer Experimentalphysik, Hamburg Univ. (Germany)
- 6. Inst. fuer Hochenergiephysik, Heidelberg Univ. (Germany)
- 7. Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany)
- 8. Inst. of Particle Physics (Canada)
- 9. Inst. fuer Experimentelle Kernphysik, Karlsruhe Univ. (Germany)
- 10. Inst. J. Stefan and Oddelek za Fiziko, Ljubljana Univ. (Slovenia)
- 11. Inst. of Theoretical and Experimental Physics, Moscow (Russian Federation)
Description
Polarization of the Λ daughter baryon from Λc+ → Λl+νl decay has been measured for the first time using the ARGUS detector at the DORIS II e+e- storage ring. Expressed in terms of the Λc+ semileptonic asymmetry parameter the result is αΛc = -0.91 ± 0.49 for events in the mass region 1.85 < M(Λl+) < 2.20 GeV/c2. (orig.)
Availability note (English)
MF available from INIS under the Report Number.
Files
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The record is publicly accessible, but files are restricted to users with access.
Additional details
Publishing Information
- Imprint Pagination
- 17 p.
- ISSN
- 0418-9833
- Report number
- DESY--94-004
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 25045726
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- ANGULAR DISTRIBUTION; ANNIHILATION; ELECTRON-POSITRON INTERACTIONS; EXPERIMENTAL DATA; GEV RANGE 01-10; GEV RANGE 10-100; HADRONIC PARTICLE DECAY; INCLUSIVE INTERACTIONS; LAMBDA C PLUS BARYONS; LAMBDA PARTICLES; MUONS PLUS; PARTICLE PRODUCTION; POLARIZATION-ASYMMETRY RATIO; POLARIZED PRODUCTS; POSITRONS; SEMILEPTONIC DECAY; UPSILON-10023 MESONS; UPSILON-10575 MESONS; UPSILON-9460 MESONS
- Descriptors DEC
- ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; BARYONS; BOSONS; BOTTOMONIUM; CHARM PARTICLES; CHARMED BARYONS; DATA; DECAY; DISTRIBUTION; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; GEV RANGE; HADRONS; HYPERONS; INFORMATION; INTERACTIONS; LAMBDA BARYONS; LEPTON-LEPTON INTERACTIONS; LEPTONS; MATTER; MESONS; MUONS; NUMERICAL DATA; PARTICLE DECAY; PARTICLE INTERACTIONS; QUARKONIUM; STRANGE PARTICLES; VECTOR MESONS; WEAK PARTICLE DECAY
Optional Information
- Collaborations
- ARGUS Collaboration.