Double-lepton polarization asymmetries in B{sub s}{yields}{phi}l{sup +}l{sup -} decay in the fourth-generation standard model

Journal Article · Wed Apr 01 04:00:00 EDT 2009 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.79.075006· OSTI ID:21308197

Zebarjad, S M; Falahati, F; Mehranfar, H ^[1]

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1. Physics Department, Shiraz University, Shiraz 71454 (Iran, Islamic Republic of)

In this paper, we investigate the effects of the fourth generation of quarks on the double-lepton polarization asymmetries in the B{sub s}{yields}{phi}l{sup +}l{sup -} decay. It is shown that most of these asymmetries in B{sub s}{yields}{phi}l{sup +}l{sup -} are quite sensitive to the fourth-generation parameters. We also compare these asymmetries with those of B{yields}Kl{sup +}l{sup -} decay and show that <P{sub LT}>, <P{sub TL}>, <P{sub NN}>, and <P{sub TT}> in B{sub s}{yields}{phi}{tau}{sup +}{tau}{sup -} decay are more sensitive to the fourth-generation parameters in comparison with those of B{yields}K{tau}{sup +}{tau}{sup -} decay. We conclude that an efficient way to establish the existence of the fourth generation of quarks could be the study of these asymmetries in the B{sub s}{yields}{phi}l{sup +}l{sup -} decay.

• OSTI ID: 21308197
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 7 Vol. 79; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

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