Dark-matter production through loop-induced processes at the LHC: the s-channel mediator case

We show how studies relevant for mono-X searches at the LHC in simplified models featuring a dark-matter candidate and an s-channel mediator can be performed within the MadGraph5_aMC@NLO framework. We focus on gluon-initiated loop-induced processes, mostly relevant to the case where the mediator cou...

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Detalles Bibliográficos
Autores principales: Mattelaer, Olivier, Vryonidou, Eleni
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/PMC4581402/
https://www.ncbi.nlm.nih.gov/pubmed/26430384
http://dx.doi.org/10.1140/epjc/s10052-015-3665-5
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author Mattelaer, Olivier
Vryonidou, Eleni
author_facet Mattelaer, Olivier
Vryonidou, Eleni
author_sort Mattelaer, Olivier
collection PubMed
description We show how studies relevant for mono-X searches at the LHC in simplified models featuring a dark-matter candidate and an s-channel mediator can be performed within the MadGraph5_aMC@NLO framework. We focus on gluon-initiated loop-induced processes, mostly relevant to the case where the mediator couples preferentially to third generation quarks and in particular to the top quark. Our implementation allows us to study signatures at hadron colliders involving missing transverse energy plus jets or plus neutral bosons ([Formula: see text] ), possibly including the effects of extra radiation by multi-parton merging and matching to the parton shower.
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spelling pubmed-45814022015-09-29 Dark-matter production through loop-induced processes at the LHC: the s-channel mediator case Mattelaer, Olivier Vryonidou, Eleni Eur Phys J C Part Fields Regular Article - Theoretical Physics We show how studies relevant for mono-X searches at the LHC in simplified models featuring a dark-matter candidate and an s-channel mediator can be performed within the MadGraph5_aMC@NLO framework. We focus on gluon-initiated loop-induced processes, mostly relevant to the case where the mediator couples preferentially to third generation quarks and in particular to the top quark. Our implementation allows us to study signatures at hadron colliders involving missing transverse energy plus jets or plus neutral bosons ([Formula: see text] ), possibly including the effects of extra radiation by multi-parton merging and matching to the parton shower. Springer Berlin Heidelberg 2015-09-21 2015 /pmc/articles/PMC4581402/ /pubmed/26430384 http://dx.doi.org/10.1140/epjc/s10052-015-3665-5 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
Mattelaer, Olivier
Vryonidou, Eleni
Dark-matter production through loop-induced processes at the LHC: the s-channel mediator case
title Dark-matter production through loop-induced processes at the LHC: the s-channel mediator case
title_full Dark-matter production through loop-induced processes at the LHC: the s-channel mediator case
title_fullStr Dark-matter production through loop-induced processes at the LHC: the s-channel mediator case
title_full_unstemmed Dark-matter production through loop-induced processes at the LHC: the s-channel mediator case
title_short Dark-matter production through loop-induced processes at the LHC: the s-channel mediator case
title_sort dark-matter production through loop-induced processes at the lhc: the s-channel mediator case
topic Regular Article - Theoretical Physics
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4581402/
https://www.ncbi.nlm.nih.gov/pubmed/26430384
http://dx.doi.org/10.1140/epjc/s10052-015-3665-5
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