Triple-leptoquark interactions for tree- and loop-level proton decays

Abstract We study the impact of triple-leptoquark interactions on matter stability for two specific proton decay topologies that arise at the tree- and one-loop level if and when they coexist. We demonstrate that the one-loop level topology is much more relevant than the tree-level one when it comes...

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Main Authors: Ilja Doršner, Svjetlana Fajfer, Olcyr Sumensari
Format: Article
Language:English
Published: SpringerOpen 2022-05-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP05(2022)183
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author Ilja Doršner
Svjetlana Fajfer
Olcyr Sumensari
author_facet Ilja Doršner
Svjetlana Fajfer
Olcyr Sumensari
author_sort Ilja Doršner
collection DOAJ
description Abstract We study the impact of triple-leptoquark interactions on matter stability for two specific proton decay topologies that arise at the tree- and one-loop level if and when they coexist. We demonstrate that the one-loop level topology is much more relevant than the tree-level one when it comes to the proton decay signatures despite the usual loop-suppression factor. We subsequently present detailed analysis of the triple-leptoquark interaction effects on the proton stability within one representative scenario to support our claim, where the scenario in question simultaneously features a tree-level topology that yields three-body proton decay p → e + e + e − and a one-loop level topology that induces two-body proton decays p → π 0 e + and p → π + ν ¯ $$ \overline{\nu} $$ . We also provide a comprehensive list of the leading-order proton decay channels for all non-trivial cubic and quartic contractions involving three scalar leptoquark multiplets that generate triple-leptoquark interactions of our interest, where in the latter case one of the scalar multiplets is the Standard Model Higgs doublet.
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spelling doaj.art-aef811931b3243fb9b1ccf96294092fc2022-12-22T03:22:00ZengSpringerOpenJournal of High Energy Physics1029-84792022-05-012022511710.1007/JHEP05(2022)183Triple-leptoquark interactions for tree- and loop-level proton decaysIlja Doršner0Svjetlana Fajfer1Olcyr Sumensari2University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture (FESB)J. Stefan InstituteUniversité Paris-Saclay, CNRS/IN2P3, IJCLabAbstract We study the impact of triple-leptoquark interactions on matter stability for two specific proton decay topologies that arise at the tree- and one-loop level if and when they coexist. We demonstrate that the one-loop level topology is much more relevant than the tree-level one when it comes to the proton decay signatures despite the usual loop-suppression factor. We subsequently present detailed analysis of the triple-leptoquark interaction effects on the proton stability within one representative scenario to support our claim, where the scenario in question simultaneously features a tree-level topology that yields three-body proton decay p → e + e + e − and a one-loop level topology that induces two-body proton decays p → π 0 e + and p → π + ν ¯ $$ \overline{\nu} $$ . We also provide a comprehensive list of the leading-order proton decay channels for all non-trivial cubic and quartic contractions involving three scalar leptoquark multiplets that generate triple-leptoquark interactions of our interest, where in the latter case one of the scalar multiplets is the Standard Model Higgs doublet.https://doi.org/10.1007/JHEP05(2022)183Baryon/Lepton Number ViolationSpecific BSM Phenomenology
spellingShingle Ilja Doršner
Svjetlana Fajfer
Olcyr Sumensari
Triple-leptoquark interactions for tree- and loop-level proton decays
Journal of High Energy Physics
Baryon/Lepton Number Violation
Specific BSM Phenomenology
title Triple-leptoquark interactions for tree- and loop-level proton decays
title_full Triple-leptoquark interactions for tree- and loop-level proton decays
title_fullStr Triple-leptoquark interactions for tree- and loop-level proton decays
title_full_unstemmed Triple-leptoquark interactions for tree- and loop-level proton decays
title_short Triple-leptoquark interactions for tree- and loop-level proton decays
title_sort triple leptoquark interactions for tree and loop level proton decays
topic Baryon/Lepton Number Violation
Specific BSM Phenomenology
url https://doi.org/10.1007/JHEP05(2022)183
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AT svjetlanafajfer tripleleptoquarkinteractionsfortreeandlooplevelprotondecays
AT olcyrsumensari tripleleptoquarkinteractionsfortreeandlooplevelprotondecays