English

Double-Lepton Polarization Asymmetries in $B_s \rar \phi \ell^+ \ell^-$ Decay in the Fourth-Generation Standard Model

High Energy Physics - Phenomenology 2009-11-06 v1

Abstract

In this paper, we investigate the effects of the fourth generation of quarks on the double-lepton polarization asymmetries in the Bs\rarϕ+B_s \rar \phi \ell^+ \ell^- decay. It is shown that these asymmetries in Bs\rarϕ+B_s \rar \phi \ell^+ \ell^- decay compared with those of B\rarK+B \rar K \ell^+ \ell^- decay are more sensitive to the fourth-generation parameters. 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 Bs\rarϕ+B_s \rar \phi \ell^+ \ell^- decay.

Keywords

Cite

@article{arxiv.0811.2706,
  title  = {Double-Lepton Polarization Asymmetries in $B_s \rar \phi \ell^+ \ell^-$ Decay in the Fourth-Generation Standard Model},
  author = {S. M. Zebarjad and F. Falahati and H. Mehranfar},
  journal= {arXiv preprint arXiv:0811.2706},
  year   = {2009}
}

Comments

25 pages and 7 figures