Charged lepton flavor violation associated with heavy quark production in deep inelastic lepton-nucleon scattering via scalar exchange

Abstract We study charged lepton flavor violation (CLFV) associated with heavy quark pair production in lepton-nucleon deep-inelastic scattering ℓ i N → ℓ j q q ¯ $$ \overline{q} $$ X. Here ℓ i and ℓ j denote the initial and final leptons; N and X are respectively the initial nucleon and arbitrary f...

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Main Authors: Yuichiro Kiyo, Michihisa Takeuchi, Yuichi Uesaka, Masato Yamanaka
Format: Article
Language:English
Published: SpringerOpen 2022-04-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP04(2022)044
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author Yuichiro Kiyo
Michihisa Takeuchi
Yuichi Uesaka
Masato Yamanaka
author_facet Yuichiro Kiyo
Michihisa Takeuchi
Yuichi Uesaka
Masato Yamanaka
author_sort Yuichiro Kiyo
collection DOAJ
description Abstract We study charged lepton flavor violation (CLFV) associated with heavy quark pair production in lepton-nucleon deep-inelastic scattering ℓ i N → ℓ j q q ¯ $$ \overline{q} $$ X. Here ℓ i and ℓ j denote the initial and final leptons; N and X are respectively the initial nucleon and arbitrary final hadronic system. We employ a model Lagrangian in which a scalar and pseudoscalar mediator generates the CLFV. We derive heavy quark structure functions for scalar and pseudoscalar currents and compute momentum distributions of the final lepton for the process. Our focus is on the heavy quark mass effects in the final lepton momentum distribution. We clarify the necessity of inclusion of the heavy quark mass to obtain reliable theory predictions for the CLFV signal searches in the deep-inelastic scattering.
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spelling doaj.art-531aab3c4eef423c8ae77e13d20448172023-03-22T10:10:02ZengSpringerOpenJournal of High Energy Physics1029-84792022-04-012022413810.1007/JHEP04(2022)044Charged lepton flavor violation associated with heavy quark production in deep inelastic lepton-nucleon scattering via scalar exchangeYuichiro Kiyo0Michihisa Takeuchi1Yuichi Uesaka2Masato Yamanaka3Department of Physics, Juntendo UniversityDepartment of Physics, Osaka UniversityFaculty of Science and Engineering, Kyushu Sangyo UniversityDepartment of Mathematics and Physics, Osaka City UniversityAbstract We study charged lepton flavor violation (CLFV) associated with heavy quark pair production in lepton-nucleon deep-inelastic scattering ℓ i N → ℓ j q q ¯ $$ \overline{q} $$ X. Here ℓ i and ℓ j denote the initial and final leptons; N and X are respectively the initial nucleon and arbitrary final hadronic system. We employ a model Lagrangian in which a scalar and pseudoscalar mediator generates the CLFV. We derive heavy quark structure functions for scalar and pseudoscalar currents and compute momentum distributions of the final lepton for the process. Our focus is on the heavy quark mass effects in the final lepton momentum distribution. We clarify the necessity of inclusion of the heavy quark mass to obtain reliable theory predictions for the CLFV signal searches in the deep-inelastic scattering.https://doi.org/10.1007/JHEP04(2022)044Beyond Standard ModelHeavy Quark Physics
spellingShingle Yuichiro Kiyo
Michihisa Takeuchi
Yuichi Uesaka
Masato Yamanaka
Charged lepton flavor violation associated with heavy quark production in deep inelastic lepton-nucleon scattering via scalar exchange
Journal of High Energy Physics
Beyond Standard Model
Heavy Quark Physics
title Charged lepton flavor violation associated with heavy quark production in deep inelastic lepton-nucleon scattering via scalar exchange
title_full Charged lepton flavor violation associated with heavy quark production in deep inelastic lepton-nucleon scattering via scalar exchange
title_fullStr Charged lepton flavor violation associated with heavy quark production in deep inelastic lepton-nucleon scattering via scalar exchange
title_full_unstemmed Charged lepton flavor violation associated with heavy quark production in deep inelastic lepton-nucleon scattering via scalar exchange
title_short Charged lepton flavor violation associated with heavy quark production in deep inelastic lepton-nucleon scattering via scalar exchange
title_sort charged lepton flavor violation associated with heavy quark production in deep inelastic lepton nucleon scattering via scalar exchange
topic Beyond Standard Model
Heavy Quark Physics
url https://doi.org/10.1007/JHEP04(2022)044
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