Scalar interactions and the polarizations of $B\to φK^*$

Details Scalar interactions and the polarizations of $B\to φK^*$ Scalar interactions and the polarizations of $B\to φK^*$

2005-04-18

arxiv.org/abs/hep-ph/0504145v3

Phys.Rev. D71 (2005) 115004

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, 2 figures, Revtex4, relative phases added and typos corrected, version to appear in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.71.115004

We try to understand the polarization puzzle in $B\to \phi K^*$ decays with a simple Higgs model associated with flavor changing neutral current at tree level. The new interactions can effectively reduce the longitudinal polarization $|A_0|^2$. In particular, we find that if the couplings of $b$-quark in different chiralities to Higgs are the same, the transverse polarization $|A_\perp|^2$ can receive the largest contribution and its value can be as large as 30%. On the other hand, with opposite sign in the couplings, the other transverse polarization $|A_{\parallel}|^2$ is enhanced.

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