Rare {Lambda}{sub b} decays in a quark model

Journal Article · Thu Aug 05 00:00:00 EDT 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3483354· OSTI ID:21426416

Mott, L; Roberts, W ^[1]

---

1. Department of Physics, Florida State University, Tallahassee, FL 32306 (United States)

Hadronic form factors for the rare weak transitions {Lambda}{sub b{yields}{Lambda}}{sup (*)} are calculated using a nonrelativistic quark model. The form factors obtained in this way are found to satisfy the relationships expecetd from the heavy quark effective theory. Differential decay rates and branching ratios are calculated for the dileptonic decays {Lambda}{sub b{yields}{Lambda}}{sup (*)}l{sup +}l{sup -}, for both ground state and excited daughter baryons. Inclusion of the long distance contributions from charmonium resonances significantly enhances the decay rates. Future work is outlined.

• OSTI ID: 21426416
• Journal Information: AIP Conference Proceedings, Vol. 1257, Issue 1; Conference: HADRON 2009: 13. international conference on hadron spectroscopy, Tallahassee, FL (United States), 29 Nov - 4 Dec 2009; Other Information: DOI: 10.1063/1.3483354; (c) 2010 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B QUARKS
BRANCHING RATIO
C QUARKS
CHARMONIUM
ELECTROMAGNETIC FORM FACTORS
INTERACTION RANGE
LAMBDA B NEUTRAL BARYONS
LAMBDA BARYONS
PARTICLE DECAY
QUANTUM CHROMODYNAMICS
QUARK MODEL
RESONANCE PARTICLES
T QUARKS
BARYONS
BEAUTY BARYONS
BEAUTY PARTICLES
BOSONS
CHARM PARTICLES
COMPOSITE MODELS
DECAY
DIMENSIONLESS NUMBERS
DISTANCE
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
FORM FACTORS
HADRONS
HYPERONS
MATHEMATICAL MODELS
MESONS
PARTICLE MODELS
PARTICLE PROPERTIES
POSTULATED PARTICLES
QUANTUM FIELD THEORY
QUARKONIUM
QUARKS
STRANGE PARTICLES
TOP PARTICLES