New physics in semileptonic B decays

Descotes-Genon, Sébastien; Capdevila, Bernat; Hofer, Lars; Matias, Joaquim; Virto Iñigo, Javier (13 January 2017). New physics in semileptonic B decays. PoS - proceedings of science, FPCP2016. Scuola Internazionale Superiore di Studi Avanzati SISSA

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Recently, the LHC has found several anomalies in exclusive semileptonic b → sl+l− decays. In this proceeding, we summarise the most important results of our global analysis of the relevant decay modes. After a discussion of the hadronic uncertainties entering the theoretical predictions, we present an interpretation of the data in terms of generic new physics scenarios. To this end, we have performed model-independent fits of the corresponding Wilson coefficients to the data and have found that in certain scenarios the best fit point is prefererred over the Standard Model by a global significance of more than 4σ . Based on the results, the discrimination between high-scale new physics and low-energy QCD effects as well as the possibility of lepton-flavour universality violation are discussed.

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:

30 Oct 2017 09:19

Last Modified:

30 Oct 2017 09:19

BORIS DOI:

10.7892/boris.102349

URI:

https://boris.unibe.ch/id/eprint/102349

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