Study of exclusive semileptonic and nonleptonic decays of B{sub c}{sup -} in a nonrelativistic quark model

Journal Article · Sun Oct 01 04:00:00 EDT 2006 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.74.074008· OSTI ID:20871307

Hernandez, E; Verde-Velasco, J M ^[1]; Nieves, J ^[2]

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1. Grupo de Fisica Nuclear, Departamento de Fisica Fundamental e IUFFyM, Facultad de Ciencias, E-37008 Salamanca (Spain)
2. Departamento de Fisica Atomica, Molecular y Nuclear, Universidad de Granada, E-18071 Granada (Spain)

We present results for different observables measured in semileptonic and nonleptonic decays of the B{sub c}{sup -} meson. The calculations have been done within the framework of a nonrelativistic constituent quark model. In order to check the sensitivity of all our results against the interquark interaction we use five different quark-quark potentials. We obtain form factors, decay widths, and asymmetry parameters for semileptonic B{sub c}{sup -}{yields}cc and B{sub c}{sup -}{yields}B decays. In the limit of infinite heavy quark mass, our model reproduces the constraints of heavy quark spin symmetry. For the actual heavy quark masses we find nonetheless large corrections to that limiting situation for some form factors. We also analyze exclusive nonleptonic two-meson decay channels within the factorization approximation.

• OSTI ID: 20871307
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 7 Vol. 74; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
APPROXIMATIONS
ASYMMETRY
B C MESONS
B MESONS
B QUARKS
C QUARKS
CORRECTIONS
FACTORIZATION
FORM FACTORS
PARTICLE WIDTHS
POTENTIALS
QUARK MODEL
QUARK-QUARK INTERACTIONS
REST MASS
SENSITIVITY
SPIN
SYMMETRY
T QUARKS
WEAK HADRONIC DECAY