Search for dark matter particles produced in association with a top quark pair at √s=13 TeV
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/194638 |
Resumo: | A search is performed for dark matter particles produced in association with a top quark pair in protonproton collisions at ffiffiffis p ¼ 13 TeV. The data correspond to an integrated luminosity of 35.9 fb−1 recorded by the CMS detector at the LHC. No significant excess over the standard model expectation is observed. The results are interpreted using simplified models of dark matter production via spin-0 mediators that couple to dark matter particles and to standard model quarks, providing constraints on the coupling strength between the mediator and the quarks. These are the most stringent collider limits to date for scalar mediators, and the most stringent for pseudoscalar mediators at low masses. |
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Sirunyan, A. M.Silveira, Gustavo Gil daCMS Collaboration2019-05-28T02:36:54Z20190031-9007http://hdl.handle.net/10183/194638001088715A search is performed for dark matter particles produced in association with a top quark pair in protonproton collisions at ffiffiffis p ¼ 13 TeV. The data correspond to an integrated luminosity of 35.9 fb−1 recorded by the CMS detector at the LHC. No significant excess over the standard model expectation is observed. The results are interpreted using simplified models of dark matter production via spin-0 mediators that couple to dark matter particles and to standard model quarks, providing constraints on the coupling strength between the mediator and the quarks. These are the most stringent collider limits to date for scalar mediators, and the most stringent for pseudoscalar mediators at low masses.application/pdfengPhysical review letters. Melville. Vol. 122, no. 1 (Jan. 2019), 011803, 19 p.Aceleradores de partículasQuarksMatéria escuraSearch for dark matter particles produced in association with a top quark pair at √s=13 TeVEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001088715.pdf.txt001088715.pdf.txtExtracted Texttext/plain90387http://www.lume.ufrgs.br/bitstream/10183/194638/2/001088715.pdf.txt2c1c4c38526777f26743b9f1750e4743MD52ORIGINAL001088715.pdfTexto completo (inglês)application/pdf1484552http://www.lume.ufrgs.br/bitstream/10183/194638/1/001088715.pdf63ba951723e85312154432b3c60c77faMD5110183/1946382023-08-04 03:31:50.742623oai:www.lume.ufrgs.br:10183/194638Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-08-04T06:31:50Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Search for dark matter particles produced in association with a top quark pair at √s=13 TeV |
title |
Search for dark matter particles produced in association with a top quark pair at √s=13 TeV |
spellingShingle |
Search for dark matter particles produced in association with a top quark pair at √s=13 TeV Sirunyan, A. M. Aceleradores de partículas Quarks Matéria escura |
title_short |
Search for dark matter particles produced in association with a top quark pair at √s=13 TeV |
title_full |
Search for dark matter particles produced in association with a top quark pair at √s=13 TeV |
title_fullStr |
Search for dark matter particles produced in association with a top quark pair at √s=13 TeV |
title_full_unstemmed |
Search for dark matter particles produced in association with a top quark pair at √s=13 TeV |
title_sort |
Search for dark matter particles produced in association with a top quark pair at √s=13 TeV |
author |
Sirunyan, A. M. |
author_facet |
Sirunyan, A. M. Silveira, Gustavo Gil da CMS Collaboration |
author_role |
author |
author2 |
Silveira, Gustavo Gil da CMS Collaboration |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Sirunyan, A. M. Silveira, Gustavo Gil da CMS Collaboration |
dc.subject.por.fl_str_mv |
Aceleradores de partículas Quarks Matéria escura |
topic |
Aceleradores de partículas Quarks Matéria escura |
description |
A search is performed for dark matter particles produced in association with a top quark pair in protonproton collisions at ffiffiffis p ¼ 13 TeV. The data correspond to an integrated luminosity of 35.9 fb−1 recorded by the CMS detector at the LHC. No significant excess over the standard model expectation is observed. The results are interpreted using simplified models of dark matter production via spin-0 mediators that couple to dark matter particles and to standard model quarks, providing constraints on the coupling strength between the mediator and the quarks. These are the most stringent collider limits to date for scalar mediators, and the most stringent for pseudoscalar mediators at low masses. |
publishDate |
2019 |
dc.date.accessioned.fl_str_mv |
2019-05-28T02:36:54Z |
dc.date.issued.fl_str_mv |
2019 |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/194638 |
dc.identifier.issn.pt_BR.fl_str_mv |
0031-9007 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001088715 |
identifier_str_mv |
0031-9007 001088715 |
url |
http://hdl.handle.net/10183/194638 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Physical review letters. Melville. Vol. 122, no. 1 (Jan. 2019), 011803, 19 p. |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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application/pdf |
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