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Semileptonic decays of bottom baryons at LEP

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Abstract

We study semileptonic {Lambda}{sub b} decays where the {Lambda}{sub b} originates from Z{sub o} decays into b quarks. The differential decay distributions are calculated using the heavy quark effective theory. We investigate the energy distribution of the decay leptons. In {Lambda}{sub b} decays the lepton energy distribution is sensitive to the standard model parameters via the nontrivial {Lambda}{sub b} polarization. We also discuss a possibility to study b quark fragmentation into baryons using the semileptonic decays. (orig.).
Authors:
Mannel, T; [1]  Schuler, G A [2] 
  1. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
  2. Hamburg Univ. (Germany). 2. Inst. fuer Theoretische Physik
Publication Date:
Sep 01, 1991
Product Type:
Technical Report
Report Number:
DESY-91-095
Reference Number:
SCA: 662360; PA: DEN-92:000567; SN: 92000645446
Resource Relation:
Other Information: PBD: Sep 1991
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; LAMBDA B NEUTRAL BARYONS; SEMILEPTONIC DECAY; ENERGY SPECTRA; FLAVOR MODEL; QUARKS; STANDARD MODEL; LIMITING FRAGMENTATION; PARTICLE WIDTHS; POLARIZATION-ASYMMETRY RATIO; EXCLUSIVE INTERACTIONS; INCLUSIVE INTERACTIONS; SPIN ORIENTATION; 662360; DECAYS OF BARYONS
OSTI ID:
10114399
Research Organizations:
Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
Country of Origin:
Germany
Language:
English
Other Identifying Numbers:
Other: ON: DE92759148; CNN: Contract BMFT 054HH92P; TRN: DE9200567
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
DEN
Size:
12 p.
Announcement Date:
Jun 30, 2005

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Citation Formats

Mannel, T, and Schuler, G A. Semileptonic decays of bottom baryons at LEP. Germany: N. p., 1991. Web.
Mannel, T, & Schuler, G A. Semileptonic decays of bottom baryons at LEP. Germany.
Mannel, T, and Schuler, G A. 1991. "Semileptonic decays of bottom baryons at LEP." Germany.
@misc{etde_10114399,
title = {Semileptonic decays of bottom baryons at LEP}
 author = {Mannel, T, and Schuler, G A}
 abstractNote = {We study semileptonic {Lambda}{sub b} decays where the {Lambda}{sub b} originates from Z{sub o} decays into b quarks. The differential decay distributions are calculated using the heavy quark effective theory. We investigate the energy distribution of the decay leptons. In {Lambda}{sub b} decays the lepton energy distribution is sensitive to the standard model parameters via the nontrivial {Lambda}{sub b} polarization. We also discuss a possibility to study b quark fragmentation into baryons using the semileptonic decays. (orig.).}
 place = {Germany}
 year = {1991}
 month = {Sep}
 }