Analysis of B_d^0 -> phi K^{*0} decay mode with supersymmetry

Details Analysis of B_d^0 -> phi K^{*0} decay mode with supersymmetry Analysis of B_d^0 -> phi K^{*0} decay mode with supersymmetry

2004-12-08

arxiv.org/abs/hep-ph/0412107v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

18 pages, 3 figures, title changed, version to appear in EPJC

Scientific paper

10.1140/epjc/s2005-02365-y

Motivated by the recent measurement of low longitudinal polarization fraction in the decay mode $\B \to \phi K^{*0}$, which appears not to be in agreement with the standard model expectation, we analyze this mode in the minimal supersymmetric standard model with mass insertion approximation. Within the standard model, with factorization approximation, the longitudinal polarization is expected to be $f_L \sim 1-{\cal O}(1/m_b^2)$. We find that this anomaly can be explained in the minimal supersymmetric standard model with either $LR$ or $RL$ mass insertion approximation.

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