Implications of the nonuniversalZboson in flavor changing neutral current mediated rare decays

2005/03/31 by R. Mohanta, Rukmani Mohanta
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1103/physrevd.71.114013

published as Phys.Rev. D71 (2005) 114013 · 15 pages, 4 figures, minor changes in the text, references added, to appear in PRD

arxiv created 2005/06/16 · openalex publication_date 2005/06/28 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We analyze the effect of the nonuniversal Z boson in the rare decays B_s\ensuremath→l⁺l^\ensuremath-, B_s\ensuremath→l⁺l^\ensuremath-\ensuremathγ, and Z\ensuremath→bs decays. These decays involve the flavor changing neutral current (FCNC) mediated b\ensuremath→s transitions, and are found to be very small in the standard model. The smallness of these decays in the standard model makes them sensitive probe for new physics. We find an enhancement of at least an order in these branching ratios because of the nonuniversal Zbs coupling.

Citations

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