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arXiv · hep-ph/0409117

Getting SM and New Physics CP phases from $B$ Decays

Alakabha Datta
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Abstract

A method to extract Standard Model(SM) CP phases involving B decays is presented. The method involves a pair of decays where one decay receives a significant $b \to d$ penguin contribution while the second has a significant $b \to s$ penguin contribution, but is dominated by a single amplitude. SM CP phase information is obtained using the fact that the $b \to s$ transition amplitude is related by SU(3) to a piece of the amplitude with the $b \to d$ transition. If there is significant new physics only in $b \to s$ transitions and not in $b \to d$ transitions then this method can be used to measure new physics(NP) phases.

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Alakabha Datta. 2004-09-09. Getting SM and New Physics CP phases from $B$ Decays. https://arxiv.org/abs/hep-ph/0409117

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