B\to πφin SM and MSSM

Details B\to πφin SM and MSSM B\to πφin SM and MSSM

2002-07-15

arxiv.org/abs/hep-ph/0207177v2

Phys.Lett. B554 (2003) 155-163

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 1 figure (some errors corrected and results refreshed)

Scientific paper

10.1016/S0370-2693(03)00009-1

We investigate the pure penguin decays $B\to \pi\phi$ in the Standard Model(SM) and in the Constrained Minimal Supersymmetric Standard Model (CMSSM) using the QCD factorization approach and consider the Sudakov effects in the twist-3 contribution. We find ${\rm Br}(B^-\to \pi^-\phi) = (1.95-5.70)\times 10^{-9}$ in SM and $(1.1-2.4)\times 10^{-8}$ in CMSSM with large $\tan\beta $ which is about one order of magnitude larger than that in SM.

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