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

Abstract 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...

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Main Authors: Wolfgang Altmannshofer, Stefania Gori, Hiren H. Patel, Stefano Profumo, Douglas Tuckler
Format: Article
Language:English
Published: SpringerOpen 2020-05-01
Series:Journal of High Energy Physics
Subjects:
Online Access:http://link.springer.com/article/10.1007/JHEP05(2020)069
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author Wolfgang Altmannshofer
Stefania Gori
Hiren H. Patel
Stefano Profumo
Douglas Tuckler
author_facet Wolfgang Altmannshofer
Stefania Gori
Hiren H. Patel
Stefano Profumo
Douglas Tuckler
author_sort Wolfgang Altmannshofer
collection DOAJ
description Abstract 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.
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spelling doaj.art-37f77ba5b6b147eea11bc69c49bf7ce82022-12-22T00:56:02ZengSpringerOpenJournal of High Energy Physics1029-84792020-05-012020512910.1007/JHEP05(2020)069Electric dipole moments in a leptoquark scenario for the B-physics anomaliesWolfgang Altmannshofer0Stefania Gori1Hiren H. Patel2Stefano Profumo3Douglas Tuckler4University of California, Santa Cruz, and Santa Cruz Institute for Particle PhysicsUniversity of California, Santa Cruz, and Santa Cruz Institute for Particle PhysicsUniversity of California, Santa Cruz, and Santa Cruz Institute for Particle PhysicsUniversity of California, Santa Cruz, and Santa Cruz Institute for Particle PhysicsUniversity of California, Santa Cruz, and Santa Cruz Institute for Particle PhysicsAbstract 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.http://link.springer.com/article/10.1007/JHEP05(2020)069Beyond Standard ModelCP violationHeavy Quark Physics
spellingShingle Wolfgang Altmannshofer
Stefania Gori
Hiren H. Patel
Stefano Profumo
Douglas Tuckler
Electric dipole moments in a leptoquark scenario for the B-physics anomalies
Journal of High Energy Physics
Beyond Standard Model
CP violation
Heavy Quark Physics
title Electric dipole moments in a leptoquark scenario for the B-physics anomalies
title_full Electric dipole moments in a leptoquark scenario for the B-physics anomalies
title_fullStr Electric dipole moments in a leptoquark scenario for the B-physics anomalies
title_full_unstemmed Electric dipole moments in a leptoquark scenario for the B-physics anomalies
title_short Electric dipole moments in a leptoquark scenario for the B-physics anomalies
title_sort electric dipole moments in a leptoquark scenario for the b physics anomalies
topic Beyond Standard Model
CP violation
Heavy Quark Physics
url http://link.springer.com/article/10.1007/JHEP05(2020)069
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