Eur. Phys. J. C (2016) 76: 67
https://doi.org/10.1140/epjc/s10052-016-3905-3

Regular Article - Theoretical Physics

Anomalies in B-decays and U(2) flavor symmetry

¹ Institute of Theoretical Studies, ETH Zürich, 8092, Zurich, Switzerland
² Physik-Institut, Universität Zürich, 8057, Zurich, Switzerland
³ INFN, Laboratori Nazionali di Frascati, 00044, Frascati, Italy
⁴ Scuola Normale Superiore, INFN, Piazza dei Cavalieri 7, 56126, Pisa, Italy
⁵ Dipartimento di Fisica e Astronomia ‘G. Galilei’, Università di Padova, Via Marzolo 8, 35131, Padua, Italy

^* e-mail: gino.isidori@lnf.infn.it

Received: 18 December 2015
Accepted: 20 January 2016
Published online: 8 February 2016

Abstract

The collection of a few anomalies in semileptonic B-decays invites to speculate about the emergence of some strikingly new phenomena. Here we offer a possible interpretation of these anomalies in the context of a weakly broken flavor symmetry and leptoquark mediators.