A new generation of Lepton Flavour Universality observables from B→K∗μ⁺μ−

Capdevila, Bernat; Descotes-Genon, Sébastien; Hofer, Lars; Matias, Joaquim; Virto Iñigo, Javier (21 July 2017). A new generation of Lepton Flavour Universality observables from B→K∗μ⁺μ−. PoS - proceedings of science, CKM2016. Scuola Internazionale Superiore di Studi Avanzati SISSA

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The recent years of activity at the LHC have brought to light several anomalies in exclusive semileptonic b → sl+l− decays that are shortly reviewed here. Our latest global model inde- pendent analysis is pointing to sizable New Physics contributions to different Wilson coefficients (especially C9). An accurate analysis of hadronic uncertainties shows that the few attempts in the literature to explain the anomalies using factorizable or non-factorizable power corrections fail. Finally, we propose a new set of observables able to test for lepton-flavour universality violation and free of hadronic uncertainties in the Standard Model. The properties of these observables are analysed within the Standard Model as well as within several New Physics benchmark scenarios.

Item Type:

Conference or Workshop Item (Paper)

Division/Institute:

10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC)
08 Faculty of Science > Institute of Theoretical Physics

UniBE Contributor:

Virto Iñigo, Javier

Subjects:

500 Science > 530 Physics

ISSN:

1824-8039

Publisher:

Scuola Internazionale Superiore di Studi Avanzati SISSA

Language:

English

Submitter:

Esther Fiechter

Date Deposited:

27 Oct 2017 15:08

Last Modified:

27 Oct 2017 15:08

BORIS DOI:

10.7892/boris.102352

URI:

https://boris.unibe.ch/id/eprint/102352

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