Lepton flavour violating top decays at the LHC

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We consider lepton-flavour violating decays of the top quark, mediated by 4-fermion operators. We compile constraints on a complete set of SU(3) [Formula: see text]  U(1)-invariant operators, arising from their loop contributions to rare decays and from HERA’s single-top search. The bounds on e–[For...

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Autores principales: Davidson, Sacha, Mangano, Michelangelo L., Perries, Stéphane, Sordini, Viola
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2015
Materias:
Regular Article - Theoretical Physics
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4623931/
https://www.ncbi.nlm.nih.gov/pubmed/26543404
http://dx.doi.org/10.1140/epjc/s10052-015-3649-5
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author Davidson, Sacha
Mangano, Michelangelo L.
Perries, Stéphane
Sordini, Viola
author_facet Davidson, Sacha
Mangano, Michelangelo L.
Perries, Stéphane
Sordini, Viola
author_sort Davidson, Sacha
collection PubMed
description We consider lepton-flavour violating decays of the top quark, mediated by 4-fermion operators. We compile constraints on a complete set of SU(3) [Formula: see text]  U(1)-invariant operators, arising from their loop contributions to rare decays and from HERA’s single-top search. The bounds on e–[Formula: see text] flavour change are more restrictive than on [Formula: see text] –[Formula: see text] ; nonetheless the top could decay to a jet [Formula: see text] with a branching ratio of order [Formula: see text] . We estimate that the currently available LHC data (20 fb[Formula: see text] at 8 TeV) could be sensitive to [Formula: see text] + jet) [Formula: see text] , and we extrapolate that 100 fb[Formula: see text] at 13 TeV could reach a sensitivity of [Formula: see text] .
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spelling pubmed-46239312015-11-03 Lepton flavour violating top decays at the LHC Davidson, Sacha Mangano, Michelangelo L. Perries, Stéphane Sordini, Viola Eur Phys J C Part Fields Regular Article - Theoretical Physics We consider lepton-flavour violating decays of the top quark, mediated by 4-fermion operators. We compile constraints on a complete set of SU(3) [Formula: see text]  U(1)-invariant operators, arising from their loop contributions to rare decays and from HERA’s single-top search. The bounds on e–[Formula: see text] flavour change are more restrictive than on [Formula: see text] –[Formula: see text] ; nonetheless the top could decay to a jet [Formula: see text] with a branching ratio of order [Formula: see text] . We estimate that the currently available LHC data (20 fb[Formula: see text] at 8 TeV) could be sensitive to [Formula: see text] + jet) [Formula: see text] , and we extrapolate that 100 fb[Formula: see text] at 13 TeV could reach a sensitivity of [Formula: see text] . Springer Berlin Heidelberg 2015-09-25 2015 /pmc/articles/PMC4623931/ /pubmed/26543404 http://dx.doi.org/10.1140/epjc/s10052-015-3649-5 Text en © The Author(s) 2015 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. Funded by SCOAP3
spellingShingle Regular Article - Theoretical Physics
Davidson, Sacha
Mangano, Michelangelo L.
Perries, Stéphane
Sordini, Viola
Lepton flavour violating top decays at the LHC
title Lepton flavour violating top decays at the LHC
title_full Lepton flavour violating top decays at the LHC
title_fullStr Lepton flavour violating top decays at the LHC
title_full_unstemmed Lepton flavour violating top decays at the LHC
title_short Lepton flavour violating top decays at the LHC
title_sort lepton flavour violating top decays at the lhc
topic Regular Article - Theoretical Physics
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4623931/
https://www.ncbi.nlm.nih.gov/pubmed/26543404
http://dx.doi.org/10.1140/epjc/s10052-015-3649-5
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AT perriesstephane leptonflavourviolatingtopdecaysatthelhc
AT sordiniviola leptonflavourviolatingtopdecaysatthelhc

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