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Vector Leptoquarks Beyond Tree Level


Fuentes-Martín, Javier; Isidori, Gino; König, Matthias; Selimovic, Nudzeim (2019). Vector Leptoquarks Beyond Tree Level. arXiv.org 1910.13474, University of Zurich.

Abstract

Models with massive vector leptoquarks, resulting from anSU(4) gauge symmetry spontaneouslybroken at the TeV scale, are of great phenomenological interest given the current “anomalies” insemileptonicBdecays. We analyze the relations between low- and high-energy observables in suchclass of models to next-to-leading order accuracy in theSU(4) gauge couplingg4. For large valuesofg4, motivated by recentB-physics data, one-loop corrections are sizeable. The main effect isan enhanced contribution at low-energy, at fixed on-shell couplings. This result has importantimplications for current and future high-energy searches of vector leptoquark models

Abstract

Models with massive vector leptoquarks, resulting from anSU(4) gauge symmetry spontaneouslybroken at the TeV scale, are of great phenomenological interest given the current “anomalies” insemileptonicBdecays. We analyze the relations between low- and high-energy observables in suchclass of models to next-to-leading order accuracy in theSU(4) gauge couplingg4. For large valuesofg4, motivated by recentB-physics data, one-loop corrections are sizeable. The main effect isan enhanced contribution at low-energy, at fixed on-shell couplings. This result has importantimplications for current and future high-energy searches of vector leptoquark models

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Item Type:Working Paper
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Language:English
Date:2019
Deposited On:06 Jan 2020 15:42
Last Modified:12 Aug 2020 03:40
Series Name:arXiv.org
ISSN:2331-8422
OA Status:Green
Related URLs:https://arxiv.org/abs/1910.13474

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