Fermion-monopole scattering in the Standard Model

Abstract We study the scattering of fermions off ’t Hooft lines in the Standard Model. A long-standing paradox suggests that the outgoing fermions necessarily carry fractional quantum numbers. In a previous paper, we resolved this paradox in the context of a number of toy models where we showed that...

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Main Authors: Marieke van Beest, Philip Boyle Smith, Diego Delmastro, Rishi Mouland, David Tong
Format: Article
Language:English
Published: SpringerOpen 2024-08-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP08(2024)004
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author Marieke van Beest
Philip Boyle Smith
Diego Delmastro
Rishi Mouland
David Tong
author_facet Marieke van Beest
Philip Boyle Smith
Diego Delmastro
Rishi Mouland
David Tong
author_sort Marieke van Beest
collection DOAJ
description Abstract We study the scattering of fermions off ’t Hooft lines in the Standard Model. A long-standing paradox suggests that the outgoing fermions necessarily carry fractional quantum numbers. In a previous paper, we resolved this paradox in the context of a number of toy models where we showed that the outgoing radiation is created by operators that are attached to a co-dimension 1 topological surface. This shifts the quantum numbers of the outgoing states associated to non-anomalous symmetries to be integer valued as required, while the quantum numbers associated to anomalous symmetries are fractional. Here we apply these ideas to the Standard Model.
format Article
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institution Kabale University
issn 1029-8479
language English
publishDate 2024-08-01
publisher SpringerOpen
record_format Article
series Journal of High Energy Physics
spelling doaj-art-3f29471addda43ebac6d17b72f6e34be2024-11-24T12:06:21ZengSpringerOpenJournal of High Energy Physics1029-84792024-08-012024813410.1007/JHEP08(2024)004Fermion-monopole scattering in the Standard ModelMarieke van Beest0Philip Boyle Smith1Diego Delmastro2Rishi Mouland3David Tong4Simons Center for Geometry and Physics, SUNYKavli Institute for the Physics and Mathematics of the Universe (WPI), University of TokyoSimons Center for Geometry and Physics, SUNYDepartment of Applied Mathematics and Theoretical Physics, University of CambridgeDepartment of Applied Mathematics and Theoretical Physics, University of CambridgeAbstract We study the scattering of fermions off ’t Hooft lines in the Standard Model. A long-standing paradox suggests that the outgoing fermions necessarily carry fractional quantum numbers. In a previous paper, we resolved this paradox in the context of a number of toy models where we showed that the outgoing radiation is created by operators that are attached to a co-dimension 1 topological surface. This shifts the quantum numbers of the outgoing states associated to non-anomalous symmetries to be integer valued as required, while the quantum numbers associated to anomalous symmetries are fractional. Here we apply these ideas to the Standard Model.https://doi.org/10.1007/JHEP08(2024)004Global SymmetriesSolitons Monopoles and InstantonsWilson, ’t Hooft and Polyakov loopsAnomalies in Field and String Theories
spellingShingle Marieke van Beest
Philip Boyle Smith
Diego Delmastro
Rishi Mouland
David Tong
Fermion-monopole scattering in the Standard Model
Journal of High Energy Physics
Global Symmetries
Solitons Monopoles and Instantons
Wilson, ’t Hooft and Polyakov loops
Anomalies in Field and String Theories
title Fermion-monopole scattering in the Standard Model
title_full Fermion-monopole scattering in the Standard Model
title_fullStr Fermion-monopole scattering in the Standard Model
title_full_unstemmed Fermion-monopole scattering in the Standard Model
title_short Fermion-monopole scattering in the Standard Model
title_sort fermion monopole scattering in the standard model
topic Global Symmetries
Solitons Monopoles and Instantons
Wilson, ’t Hooft and Polyakov loops
Anomalies in Field and String Theories
url https://doi.org/10.1007/JHEP08(2024)004
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AT philipboylesmith fermionmonopolescatteringinthestandardmodel
AT diegodelmastro fermionmonopolescatteringinthestandardmodel
AT rishimouland fermionmonopolescatteringinthestandardmodel
AT davidtong fermionmonopolescatteringinthestandardmodel