Electric dipole moments in a leptoquark scenario for the B-physics anomalies

A bstract Vector leptoquarks can address the lepton flavor universality anomalies in decays associated with the b → cℓν and b → sℓℓ transitions, as observed in recent years. While not required to explain the anomalies, these leptoquarks generically yield new sources of CP violation. In this paper, w...

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Bibliographic Details
Published in:The journal of high energy physics 2020-05, Vol.2020 (5), p.1-29, Article 69
Main Authors: Altmannshofer, Wolfgang, Gori, Stefania, Patel, Hiren H., Profumo, Stefano, Tuckler, Douglas
Format: Article
Language:English
Subjects:
Anomalies
Beyond Standard Model
Classical and Quantum Gravitation
Couplings
CP violation
Dipole moments
Electric dipoles
Elementary Particles
Heavy Quark Physics
High energy physics
Leptons
Physics
Physics and Astronomy
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Regular Article - Theoretical Physics
Relativity Theory
String Theory
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Summary:A bstract Vector leptoquarks can address the lepton flavor universality anomalies in decays associated with the b → cℓν and b → sℓℓ transitions, as observed in recent years. While not required to explain the anomalies, these leptoquarks generically yield new sources of CP violation. In this paper, we explore constraints and discovery potential for electric dipole moments (EDMs) in leptonic and hadronic systems. We provide the most generic expressions for dipole moments induced by vector leptoquarks at one loop. We find that O (1) CP-violating phases in tau and muon couplings can lead to corresponding EDMs within reach of next-generation EDM experiments, and that existing bounds on the electron EDM already put stringent constraints on CP-violating electron couplings.
ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP05(2020)069