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

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

2008-11-17

arxiv.org/abs/0811.2706v1

Phys.Rev.D79:075006,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

25 pages and 7 figures

Scientific paper

10.1103/PhysRevD.79.075006

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

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