CP Violating B Decays in the Standard Model and Supersymmetry

Details CP Violating B Decays in the Standard Model and Supersymmetry CP Violating B Decays in the Standard Model and Supersymmetry

1997-04-09

arxiv.org/abs/hep-ph/9704274v1

Phys.Rev.Lett.79:978-981,1997

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, LaTeX

Scientific paper

10.1103/PhysRevLett.79.978

We study the uncertainties of the Standard Model (SM) predictions for CP violating B decays and investigate where and how supersymmetric (SUSY) contributions may be disentangled. The first task is accomplished by letting the relevant matrix elements of the effective Hamiltonian vary within certain ranges. The SUSY analysis makes use of a formalism which allows to obtain model-independent results. We show that in some cases it is possible a) to measure the CP B-\bar{B} mixing phase and b) to discriminate the SM and SUSY contributions to the CP decay phases. The golden-plated decays to this purpose are the B \to \phi K_S and B \to K_S \pi^0 channels.

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