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B(bar) -> X_s gamma rate and CP asymmetry within the aligned two-Higgs-doublet model

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B(bar) -> X_s gamma rate and CP asymmetry within the aligned two-Higgs-doublet model

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Jung, M.; Pich Zardoya, Antonio; Tuzón Marco, Paula

Aquest document és un/a article, creat/da en: 2011

In the two-Higgs-doublet model the alignment of the Yukawa matrices in flavour space guarantees the absence of flavour-changing neutral currents at tree level, while introducing new sources for CP violation parametrized in a very economical way. This implies potentially large influence in a number of processes, b -> s gamma being a prominent example where rather high experimental and theoretical precision meet. We analyze the CP rate asymmetry in this inclusive decay and determine the resulting constraints on the model parameters. We demonstrate the compatibility with previously obtained limits. Moreover we extend the phenomenological analysis of the branching ratio, and examine the influence of resulting correlations on the like-sign dimuon charge asymmetry in B decays.

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