Search for the flavor-changing neutral current interactions of the top quark and the Higgs boson which decays into a pair of b quarks at √s = 13 TeV
Autor(a) principal: | |
---|---|
Data de Publicação: | 2018 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/182133 |
Resumo: | A search for avor-changing neutral currents (FCNC) in events with the top quark and the Higgs boson is presented. The Higgs boson decay to a pair of b quarks is considered. The data sample corresponds to an integrated luminosity of 35:9 fb1 recorded by the CMS experiment at the LHC in proton-proton collisions at p s = 13TeV. Two channels are considered: single top quark FCNC production in association with the Higgs boson (pp ! tH), and top quark pair production with FCNC decay of the top quark (t ! qH). Final states with one isolated lepton and at least three reconstructed jets, among which at least two are associated with b quarks, are studied. No signi cant deviation is observed from the predicted background. Observed (expected) upper limits at 95% con dence level are set on the branching fractions of top quark decays, B(t ! uH) < 0:47% (0:34%) and B(t ! cH) < 0:47% (0:44%), assuming a single nonzero FCNC coupling. |
id |
UFRGS-2_b310ce9ab7504be96d4eae89a633e088 |
---|---|
oai_identifier_str |
oai:www.lume.ufrgs.br:10183/182133 |
network_acronym_str |
UFRGS-2 |
network_name_str |
Repositório Institucional da UFRGS |
repository_id_str |
|
spelling |
Sirunyan, A. M.Silveira, Gustavo Gil daCMS Collaboration2018-09-18T02:30:18Z20181029-8479http://hdl.handle.net/10183/182133001073285A search for avor-changing neutral currents (FCNC) in events with the top quark and the Higgs boson is presented. The Higgs boson decay to a pair of b quarks is considered. The data sample corresponds to an integrated luminosity of 35:9 fb1 recorded by the CMS experiment at the LHC in proton-proton collisions at p s = 13TeV. Two channels are considered: single top quark FCNC production in association with the Higgs boson (pp ! tH), and top quark pair production with FCNC decay of the top quark (t ! qH). Final states with one isolated lepton and at least three reconstructed jets, among which at least two are associated with b quarks, are studied. No signi cant deviation is observed from the predicted background. Observed (expected) upper limits at 95% con dence level are set on the branching fractions of top quark decays, B(t ! uH) < 0:47% (0:34%) and B(t ! cH) < 0:47% (0:44%), assuming a single nonzero FCNC coupling.application/pdfengThe journal of high energy physics. Trieste. No. 6 (June 2018), 102, 36 p.Bosons de higgsAceleradores de partículasColisões proton-protonMétodo de Monte CarloFCNC InteractionHadron-Hadron scattering (experiments)Higgs physicsTop physicsSearch for the flavor-changing neutral current interactions of the top quark and the Higgs boson which decays into a pair of b quarks 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:UFRGSORIGINAL001073285.pdfTexto completo (inglês)application/pdf1534573http://www.lume.ufrgs.br/bitstream/10183/182133/1/001073285.pdfda54d8393964af0cdd79e9fb4df82a3dMD51TEXT001073285.pdf.txt001073285.pdf.txtExtracted Texttext/plain89530http://www.lume.ufrgs.br/bitstream/10183/182133/2/001073285.pdf.txt5c23eb6a43173990e19ca65a10a085f2MD52THUMBNAIL001073285.pdf.jpg001073285.pdf.jpgGenerated Thumbnailimage/jpeg1511http://www.lume.ufrgs.br/bitstream/10183/182133/3/001073285.pdf.jpg19a534372f8fac2ca3dfe95000c9448bMD5310183/1821332023-08-05 03:39:56.290363oai:www.lume.ufrgs.br:10183/182133Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-08-05T06:39:56Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Search for the flavor-changing neutral current interactions of the top quark and the Higgs boson which decays into a pair of b quarks at √s = 13 TeV |
title |
Search for the flavor-changing neutral current interactions of the top quark and the Higgs boson which decays into a pair of b quarks at √s = 13 TeV |
spellingShingle |
Search for the flavor-changing neutral current interactions of the top quark and the Higgs boson which decays into a pair of b quarks at √s = 13 TeV Sirunyan, A. M. Bosons de higgs Aceleradores de partículas Colisões proton-proton Método de Monte Carlo FCNC Interaction Hadron-Hadron scattering (experiments) Higgs physics Top physics |
title_short |
Search for the flavor-changing neutral current interactions of the top quark and the Higgs boson which decays into a pair of b quarks at √s = 13 TeV |
title_full |
Search for the flavor-changing neutral current interactions of the top quark and the Higgs boson which decays into a pair of b quarks at √s = 13 TeV |
title_fullStr |
Search for the flavor-changing neutral current interactions of the top quark and the Higgs boson which decays into a pair of b quarks at √s = 13 TeV |
title_full_unstemmed |
Search for the flavor-changing neutral current interactions of the top quark and the Higgs boson which decays into a pair of b quarks at √s = 13 TeV |
title_sort |
Search for the flavor-changing neutral current interactions of the top quark and the Higgs boson which decays into a pair of b quarks 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 |
Bosons de higgs Aceleradores de partículas Colisões proton-proton Método de Monte Carlo |
topic |
Bosons de higgs Aceleradores de partículas Colisões proton-proton Método de Monte Carlo FCNC Interaction Hadron-Hadron scattering (experiments) Higgs physics Top physics |
dc.subject.eng.fl_str_mv |
FCNC Interaction Hadron-Hadron scattering (experiments) Higgs physics Top physics |
description |
A search for avor-changing neutral currents (FCNC) in events with the top quark and the Higgs boson is presented. The Higgs boson decay to a pair of b quarks is considered. The data sample corresponds to an integrated luminosity of 35:9 fb1 recorded by the CMS experiment at the LHC in proton-proton collisions at p s = 13TeV. Two channels are considered: single top quark FCNC production in association with the Higgs boson (pp ! tH), and top quark pair production with FCNC decay of the top quark (t ! qH). Final states with one isolated lepton and at least three reconstructed jets, among which at least two are associated with b quarks, are studied. No signi cant deviation is observed from the predicted background. Observed (expected) upper limits at 95% con dence level are set on the branching fractions of top quark decays, B(t ! uH) < 0:47% (0:34%) and B(t ! cH) < 0:47% (0:44%), assuming a single nonzero FCNC coupling. |
publishDate |
2018 |
dc.date.accessioned.fl_str_mv |
2018-09-18T02:30:18Z |
dc.date.issued.fl_str_mv |
2018 |
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/10183/182133 |
dc.identifier.issn.pt_BR.fl_str_mv |
1029-8479 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001073285 |
identifier_str_mv |
1029-8479 001073285 |
url |
http://hdl.handle.net/10183/182133 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
The journal of high energy physics. Trieste. No. 6 (June 2018), 102, 36 p. |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFRGS instname:Universidade Federal do Rio Grande do Sul (UFRGS) instacron:UFRGS |
instname_str |
Universidade Federal do Rio Grande do Sul (UFRGS) |
instacron_str |
UFRGS |
institution |
UFRGS |
reponame_str |
Repositório Institucional da UFRGS |
collection |
Repositório Institucional da UFRGS |
bitstream.url.fl_str_mv |
http://www.lume.ufrgs.br/bitstream/10183/182133/1/001073285.pdf http://www.lume.ufrgs.br/bitstream/10183/182133/2/001073285.pdf.txt http://www.lume.ufrgs.br/bitstream/10183/182133/3/001073285.pdf.jpg |
bitstream.checksum.fl_str_mv |
da54d8393964af0cdd79e9fb4df82a3d 5c23eb6a43173990e19ca65a10a085f2 19a534372f8fac2ca3dfe95000c9448b |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 MD5 |
repository.name.fl_str_mv |
Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS) |
repository.mail.fl_str_mv |
|
_version_ |
1798487382843981824 |