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Exclusive radiative B-meson decays within the aligned two-Higgs-doublet model

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Exclusive radiative B-meson decays within the aligned two-Higgs-doublet model

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dc.contributor.author Jung, M.
dc.contributor.author Li, X.Q.
dc.contributor.author Pich Zardoya, Antonio
dc.date.accessioned 2015-02-26T08:34:12Z
dc.date.available 2015-02-26T08:34:12Z
dc.date.issued 2012
dc.identifier.citation Jung, M. Li, X.Q. Pich Zardoya, Antonio 2012 Exclusive radiative B-meson decays within the aligned two-Higgs-doublet model Journal of High Energy Physics 2012 10 063
dc.identifier.uri http://hdl.handle.net/10550/42309
dc.description.abstract In the aligned two-Higgs-doublet model, the alignment of Yukawa matrices in flavour space guarantees the absence of tree-level flavour-changing neutral currents, while allowing at the same time for new sources of CP violation, implying potentially large effects in many low-energy processes. In this work we study the constraints from exclusive radiative $B\to V\gamma$ decays, where $V$ denotes a light vector meson. The current experimental data on the CP-averaged branching ratios and the direct CP and isospin asymmetries are analyzed. It is found that, while the branching ratios and direct CP asymmetries do not constrain the parameter space much further compared to the inclusive $B\to X_{s,d} \gamma$ decays, complementary constraints can be obtained from the isospin asymmetries $\Delta(K^*\gamma)$ and $\Delta(\rho\gamma)$. In addition, correlations between the various observables in exclusive $B\to V\gamma$ and inclusive $B\to X_{s,d} \gamma$ decays are investigated in detail, and predictions are made for several so far unmeasured observables.
dc.language.iso eng
dc.relation.ispartof Journal of High Energy Physics, 2012, vol. 2012, num. 10, p. 063
dc.subject Física
dc.title Exclusive radiative B-meson decays within the aligned two-Higgs-doublet model
dc.type journal article es_ES
dc.date.updated 2015-02-26T08:34:12Z
dc.identifier.doi 10.1007/JHEP10(2012)063
dc.identifier.idgrec 083238
dc.rights.accessRights open access es_ES

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