Published May 2006 | Version v1
Journal article Metadata-only

Polarization effects in exclusive semileptonic Λb→Λl+l- decay

Creators

  • 1. Physics Department, Middle East Technical University, 06531 Ankara (Turkey)

Description

The independent helicity amplitudes in the Λb→Λl+l- decay in the standard model and its minimal extension, i.e., with the new vector type interactions, are calculated. We calculate various asymmetry parameters characterizing the angular dependence of the differential decay width for the cascade decay Λb→Λ(→a+b) V*(→l+l-) with polarized and unpolarized heavy baryons. The sensitivity of the asymmetry parameters to the new Wilson coefficients are analyzed

Availability note (English)

Available online at http://stacks.iop.org/1126-6708/2006/i=05/a=001/jhep052006001.pdf or at the Web site for the Journal of High Energy Physics (ISSN 1029-8479) http://www.iop.org/

Additional details

Identifiers

URL
http://stacks.iop.org/1126-6708/2006/i=05/a=001/jhep052006001.pdf;
DOI
10.1088/1126-6708/2006/05/001;

Publishing Information

Journal Title
Journal of High Energy Physics
Journal Volume
2006
Journal Issue
05
Journal Page Range
p. 001
ISSN
1126-6708

INIS

Country of Publication
Italy
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
37053947
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
AMPLITUDES; ASYMMETRY; BASIC INTERACTIONS; EXCLUSIVE INTERACTIONS; HELICITY; LAMBDA B NEUTRAL BARYONS; LAMBDA BARYONS; LEPTONS; PARTICLE DECAY; POLARIZATION; SENSITIVITY; STANDARD MODEL
Descriptors DEC
BARYONS; BEAUTY BARYONS; BEAUTY PARTICLES; DECAY; ELEMENTARY PARTICLES; FERMIONS; FIELD THEORIES; GRAND UNIFIED THEORY; HADRONS; HYPERONS; INTERACTIONS; MATHEMATICAL MODELS; PARTICLE INTERACTIONS; PARTICLE MODELS; PARTICLE PROPERTIES; QUANTUM FIELD THEORY; STRANGE PARTICLES; UNIFIED GAUGE MODELS