Beaujean F, Bobeth C, van Dyk D. Comprehensive Bayesian analysis of rare (semi)leptonic and radiative [Formula: see text] decays.
THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS 2014;
74:2897. [PMID:
25814894 PMCID:
PMC4371054 DOI:
10.1140/epjc/s10052-014-2897-0]
[Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Accepted: 05/09/2014] [Indexed: 06/04/2023]
Abstract
The available data on [Formula: see text] decays are in good agreement with the Standard Model when permitting subleading power corrections of about [Formula: see text] at large hadronic recoil. Constraining new-physics effects in [Formula: see text], [Formula: see text], [Formula: see text], the data still demand the same size of power corrections as in the Standard Model. In the presence of chirality-flipped operators, all but one of the power corrections reduce substantially. The Bayes factors are in favor of the Standard Model. Using new lattice inputs for [Formula: see text] form factors and under our minimal prior assumption for the power corrections, the favor shifts toward models with chirality-flipped operators. We use the data to further constrain the hadronic form factors in [Formula: see text] and [Formula: see text] transitions.
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