B→K∗(→Kπ)ℓ+ℓ− theory and the global picture: What's next?

Capdevila, Bernat; Descotes-Genon, Sebastien; Hofer, Lars; Matias, Joaquim; Virto Iñigo, Javier (5 April 2017). B→K∗(→Kπ)ℓ+ℓ− theory and the global picture: What's next? PoS - proceedings of science, LHCP2016. Scuola Internazionale Superiore di Studi Avanzati SISSA

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The present status of the LHC anomalies found in exclusive semileptonic b→sℓ+ℓ− decays is discussed with special emphasis on the exclusive 4-body angular distribution B→K∗(→Kπ)ℓ+ℓ−. The treatment of hadronic uncertainties in this mode is briefly reviewed, and some of the analyses in the literature are critically reassessed. The global picture provided by the global fit points to a coherent pattern of deviations with a significance substantially above 4σ for different New Physics scenarios. Finally, we propose as the next step in the field to focus on the study of optimized observables that compare electron and muon modes, sensitive to lepton-flavour universality violations and free from hadronic uncertainties (including charm) in the SM, the so called Qi observables.

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 08:09

Last Modified:

30 Oct 2017 08:09

ArXiv ID:

1609.01355

BORIS DOI:

10.7892/boris.102345

URI:

https://boris.unibe.ch/id/eprint/102345

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