OBSERVATION OF POLARIZATION EFFECTS IN LAMBDA(C)(+) SEMILEPTONIC DECAY

Authors
ALBRECHT H EHRLICHMANN H HAMACHER T HOFMANN RP KIRCHHOFF T MANKEL R NAU A NOWAK S SCHRODER H SCHULZ HD WALTER M WURTH R HAST C KAPITZA H KOLANOSKI H KOSCHE A LANGE A LINDNER A SCHIEBER M SIEGMUND T SPAAN B THURN H TOPFER D WEGENER D ECKSTEIN P SCHUBERT KR SCHWIERZ R WALDI R REIM K WEGENER H ECKMANN R KUIPERS H MAI O MUNDT R OEST T REINER R SCHMIDTPARZEFALL W STIEWE J WERNER S EHRET K HOFMANN W HUPPER A KHAN S KNOPFLE KT SEEGER M SPENGLER J KRIEGER P MACFARLANE DB PRENTICE JD SAULL PRB TZAMARIUDAKI K VANDEWATER RG YOON TS FRANKL C RESSING D SCHMIDTLER M SCHNEIDER M WESELER S KERNEL G KRIZAN P KRIZNIC E PODOBNIK T ZIVKO T BALAGURA V BELYAEV I CHECHELNITSKY S DANILOV M DROUTSKOY A GERSHTEIN Y GOLUTVIN A KOROLKO I KOSTINA G LITVINTSEV D LUBIMOV V PAKHLOV P SEMENOV S SNIZHKO A TICHOMIROV I ZAITSEV Y
Citation
H. Albrecht et al., OBSERVATION OF POLARIZATION EFFECTS IN LAMBDA(C)(+) SEMILEPTONIC DECAY, Physics letters. Section B, 326(3-4), 1994, pp. 320-328
Citations number
20
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
326
Issue
3-4
Year of publication
1994
Pages
320 - 328
Database
ISI
SICI code
0370-2693(1994)326:3-4<320:OOPEIL>2.0.ZU;2-N
Abstract
Polarization of the LAMBDA daughter baryon from LAMBDA(c)+ --> LAMBDAl + nu(l) decay has been measured for the first time using the ARGUS det ector at the DORIS II e+e- storage ring. Expressed in terms of the LAM BDA(c)+ semileptonic asymmetry parameter the result is alpha(LAMBDAc) = -0.91 +/- 0.49 for events in the mass region 1.85 < M(LAMBDAl+) < 2. 20 GeV/c2.