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arXiv · hep-ph/0207007

New Physics in B -> J/Psi K^*

D. London·N. Sinha·R. Sinha
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Abstract

Direct CP violation in B -> J/Psi K is a clean test for new physics. However, the direct CP asymmetry will vanish if the new-physics amplitude has the same strong phase as the standard-model amplitude. We show that this type of new physics can still be detected via an angular analysis of the sister decay mode B -> J/Psi K^*. Time-dependent measurements and tagging are not necessary. Should new physics be found, this angular analysis can be used to obtain information about the size of the new-physics parameters.

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D. London, N. Sinha, R. Sinha. 2002-06-29. New Physics in B -> J/Psi K^*. https://arxiv.org/abs/hep-ph/0207007

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