• Open Access

Gauge leptoquark as the origin of B-physics anomalies

Luca Di Luzio, Admir Greljo, and Marco Nardecchia
Phys. Rev. D 96, 115011 – Published 15 December 2017

Abstract

The vector leptoquark representation, Uμ=(3,1,2/3), was recently identified as an exceptional single mediator model to address experimental hints on lepton flavor universality violation in semileptonic B-meson decays, both in neutral (bsμμ) and charged (bcτν) current processes. Nonetheless, it is well known that massive vectors crave an ultraviolet (UV) completion. We present the first full-fledged UV complete and calculable gauge model which incorporates this scenario while remaining in agreement with all other indirect flavor and electroweak precision measurements, as well as, direct searches at high-pT. The model is based on a new non-Abelian gauge group spontaneously broken at the TeV scale, and a specific flavor structure suppressing flavour violation in ΔF=2 processes while inducing sizeable semileptonic transitions.

  • Received 7 September 2017

DOI:https://doi.org/10.1103/PhysRevD.96.115011

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Particles & Fields

Authors & Affiliations

Luca Di Luzio1,*, Admir Greljo2,3,†, and Marco Nardecchia4,‡

  • 1Institute for Particle Physics Phenomenology, Department of Physics, Durham University, DH1 3LE Durham, United Kingdom
  • 2Physik-Institut, Universität Zürich, CH-8057 Zürich, Switzerland
  • 3Faculty of Science, University of Sarajevo, Zmaja od Bosne 33-35, 71000 Sarajevo, Bosnia and Herzegovina
  • 4Theoretical Physics Department, CERN, CH-1211 Geneva, Switzerland

  • *luca.di-luzio@durham.ac.uk
  • admir@physik.uzh.ch
  • marco.nardecchia@cern.ch

Article Text

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Issue

Vol. 96, Iss. 11 — 1 December 2017

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