Testing the lepton content of the proton at HERA and EIC

Abstract Although protons are baryons with an overall vanishing lepton number, they possess a non-trivial leptonic content arising from quantum fluctuations which can be described by lepton parton distribution functions (PDFs) of the proton. These PDFs have been recently computed and can be used to...

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Main Authors: Leandro Da Rold, Anibal D. Medina, Subhojit Roy, Carlos E. M. Wagner
Format: Article
Language:English
Published: SpringerOpen 2025-01-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP01(2025)121
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author Leandro Da Rold
Anibal D. Medina
Subhojit Roy
Carlos E. M. Wagner
author_facet Leandro Da Rold
Anibal D. Medina
Subhojit Roy
Carlos E. M. Wagner
author_sort Leandro Da Rold
collection DOAJ
description Abstract Although protons are baryons with an overall vanishing lepton number, they possess a non-trivial leptonic content arising from quantum fluctuations which can be described by lepton parton distribution functions (PDFs) of the proton. These PDFs have been recently computed and can be used to define lepton-induced processes at high-energy colliders. In this article, we propose a novel way to test the computation of lepton PDFs of the proton by analyzing both non-resonant di-lepton and resonant Z gauge boson production processes induced by leptons within the proton at proton-electron colliders like HERA and EIC. Despite the fact that lepton PDFs of the proton are known to be small, this work demonstrates that both processes imply a measurable yield of events at HERA and EIC, which could be used to test these PDFs.
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institution Kabale University
issn 1029-8479
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publishDate 2025-01-01
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series Journal of High Energy Physics
spelling doaj-art-8c3b9728a20d446d919e244934b687e42025-02-09T12:07:20ZengSpringerOpenJournal of High Energy Physics1029-84792025-01-012025111810.1007/JHEP01(2025)121Testing the lepton content of the proton at HERA and EICLeandro Da Rold0Anibal D. Medina1Subhojit Roy2Carlos E. M. Wagner3Centro Atómico Bariloche, Instituto Balseiro and CONICETIFLP, CONICET — Dpto. de Física, Universidad Nacional de La PlataHEP Division, Argonne National LaboratoryHEP Division, Argonne National LaboratoryAbstract Although protons are baryons with an overall vanishing lepton number, they possess a non-trivial leptonic content arising from quantum fluctuations which can be described by lepton parton distribution functions (PDFs) of the proton. These PDFs have been recently computed and can be used to define lepton-induced processes at high-energy colliders. In this article, we propose a novel way to test the computation of lepton PDFs of the proton by analyzing both non-resonant di-lepton and resonant Z gauge boson production processes induced by leptons within the proton at proton-electron colliders like HERA and EIC. Despite the fact that lepton PDFs of the proton are known to be small, this work demonstrates that both processes imply a measurable yield of events at HERA and EIC, which could be used to test these PDFs.https://doi.org/10.1007/JHEP01(2025)121Parton DistributionsDeep Inelastic Scattering or Small-x PhysicsElectroweak Precision Physics
spellingShingle Leandro Da Rold
Anibal D. Medina
Subhojit Roy
Carlos E. M. Wagner
Testing the lepton content of the proton at HERA and EIC
Journal of High Energy Physics
Parton Distributions
Deep Inelastic Scattering or Small-x Physics
Electroweak Precision Physics
title Testing the lepton content of the proton at HERA and EIC
title_full Testing the lepton content of the proton at HERA and EIC
title_fullStr Testing the lepton content of the proton at HERA and EIC
title_full_unstemmed Testing the lepton content of the proton at HERA and EIC
title_short Testing the lepton content of the proton at HERA and EIC
title_sort testing the lepton content of the proton at hera and eic
topic Parton Distributions
Deep Inelastic Scattering or Small-x Physics
Electroweak Precision Physics
url https://doi.org/10.1007/JHEP01(2025)121
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AT carlosemwagner testingtheleptoncontentoftheprotonatheraandeic