Implications of the measurement of the B^0_s-\bar B^0_s mass difference

Details Implications of the measurement of the B^0_s-\bar B^0_s mass difference Implications of the measurement of the B^0_s-\bar B^0_s mass difference

2006-04-12

arxiv.org/abs/hep-ph/0604112v3

Phys.Rev.Lett 97:101801,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages and figures; typos corrected, minor numerical changes in Figs. 3 and 4; references added, \Delta\Gamma constraint and

Scientific paper

10.1103/PhysRevLett.97.101801

We analyze the significant new model independent constraints on extensions of the standard model (SM) that follow from the recent measurements of the B^0_s-\bar B^0_s mass difference. The time-dependent CP asymmetry in B_s -> \psi\phi, S_{\psi\phi}, will be measured with good precision in the first year of LHC data taking, which will further constrain the parameter space of many extensions of the SM, in particular, next-to-minimal flavor violation. The CP asymmetry in semileptonic B_s decay, A_{SL}^s, is also important to constrain these frameworks, and could give further clues to our understanding the flavor sector in the LHC era. We point out a strong correlation between S_{\psi\phi} and A_{SL}^s in a very broad class of new physics models.

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