Gauge leptoquark as the origin of B-physics anomalies

2017/08/31 by Luca Di Luzio, Admir Greljo, Marco Nardecchia · 17 citations
Physics and Astronomy · #Archaeology #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Gauge (firearms) #Geography #Particle physics #Particle physics theoretical and experimental studies #Physics #hep-ex #hep-ph

paper · pdf · doi:10.1103/physrevd.96.115011

published as Phys. Rev. D 96, 115011 (2017) · 7 pages, 1 table. v2: To appear in Phys. Rev. D. Note added on related works

openalex created_date 2017/09/15 · arxiv created 2017/12/05 · openalex publication_date 2017/12/15 · arxiv updated 2017/12/20 · openalex updated_date 2026/08/06

Abstract

The vector leptoquark representation, U_\ensuremathμ=(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 (b\ensuremath→s\ensuremathμ\ensuremathμ) and charged (b\ensuremath→c\ensuremathτ\ensuremathν) 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-p_T. 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 \mathrm\ensuremathΔF=2 processes while inducing sizeable semileptonic transitions.

Citations

• Lepton number as the fourth "color"
• Anomalies in B-decays and U(2) flavour symmetry
• Search for new phenomena in dijet events using 37 fb^-1 of pp collision data collected at √(s)=13 TeV with the ATLAS detector

Cited by

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• A model of muon anomalies
• Baryon number and lepton universality violation in leptoquark and diquark models
• Strong CP problem with low-energy emergent QCD: The 4321 case
• Combined explanations of (g−2)μ, RD(*), RK(*) anomalies in a two-loop radiative neutrino mass model
• Implications for new physics in b→ s μ μ transitions after recent measurements by Belle and LHCb
• Accidental scale-invariant Majorana dark matter in leptoquark-Higgs portals
• R(K(⁎)) from dark matter exchange
• Anomalies in bottom from new physics in top
• B-meson charged current anomalies: The post-Moriond 2019 status
• Low-energy phenomenology of scalar leptoquarks at one-loop accuracy
• Model of vector leptoquarks in view of the B-physics anomalies
• GUT Physics in the Era of the LHC
• Scalar leptoquarks from grand unified theories to accommodate the B-physics anomalies