Exclusive B{yields}{rho}l{sup +}l{sup -} decay in the standard model with fourth-generation quarks

Journal Article · Fri Aug 01 04:00:00 EDT 2008 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.78.033001· OSTI ID:21250591

Zeynali, K ^[1]; Bashiry, V ^[2]

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1. Faculty of Medicine, Ardabil University of Medical Sciences (ArUMS), Daneshgah Street, Ardabil (Iran, Islamic Republic of)
2. Engineering Faculty, Cyprus International University, Haspolat-Lefkosa, North Cyprus, via Mersin 10 (Turkey)

We investigate the influence of the fourth generation of quarks on the branching ratio, the CP asymmetry, and the polarization asymmetries in B{yields}{rho}l{sup +}l{sup -} decay. Taking |V{sub t{sup '}}{sub d}V{sub t{sup '}}{sub b}|{approx}0.001 with phase about 10 deg., which is consistent with the sin2{phi}{sub 1} of the Cabibbo-Kobayashi-Maskawa matrix and the B{sub d} mixing parameter {delta}m{sub B{sub d}}, we obtain that for both ({mu},{tau}) channels the branching ratio is increased and the magnitude of CP asymmetry and polarization asymmetries decreased by the mass and mixing parameters of the 4th generation of quarks. These results can serve as a good tool to search for new physics effects, precisely, to search for the fourth generation of quarks (t{sup '},b{sup '}) via its indirect manifestations in loop diagrams.

• OSTI ID: 21250591
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 3 Vol. 78; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
BRANCHING RATIO
KOBAYASHI-MASKAWA MATRIX
MASS
MIXING
PARTICLE DECAY
PARTICLE PRODUCTION
POLARIZATION
QUARKS
STANDARD MODEL