Studies of beauty suppression via nonprompt D0 mesons in Pb-Pb collisions at √sNN=5.02  TeV

Detalhes bibliográficos
Autor(a) principal: Sirunyan, A. M.
Data de Publicação: 2019
Outros Autores: Silveira, Gustavo Gil da, CMS Collaboration
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/198767
Resumo: The transverse momentum spectra of D0 mesons from b hadron decays are measured at midrapidity (|y|<1) in pp and Pb-Pb collisions at a nucleon-nucleon center of mass energy of 5.02 TeV with the CMS detector at the LHC. The D0 mesons from b hadron decays are distinguished from prompt D0 mesons by their decay topologies. In Pb-Pb collisions, the B→D0 yield is found to be suppressed in the measured pT range from 2 to 100  GeV/c as compared to pp collisions. The suppression is weaker than that of prompt D0 mesons and charged hadrons for pT around 10  GeV/c. While theoretical calculations incorporating partonic energy loss in the quark-gluon plasma can successfully describe the measured B→D0 suppression at higher pT, the data show an indication of larger suppression than the model predictions in the range of 2<pT<5  GeV/c
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spelling Sirunyan, A. M.Silveira, Gustavo Gil daCMS Collaboration2019-09-04T02:35:20Z20190031-9007http://hdl.handle.net/10183/198767001099006The transverse momentum spectra of D0 mesons from b hadron decays are measured at midrapidity (|y|<1) in pp and Pb-Pb collisions at a nucleon-nucleon center of mass energy of 5.02 TeV with the CMS detector at the LHC. The D0 mesons from b hadron decays are distinguished from prompt D0 mesons by their decay topologies. In Pb-Pb collisions, the B→D0 yield is found to be suppressed in the measured pT range from 2 to 100  GeV/c as compared to pp collisions. The suppression is weaker than that of prompt D0 mesons and charged hadrons for pT around 10  GeV/c. While theoretical calculations incorporating partonic energy loss in the quark-gluon plasma can successfully describe the measured B→D0 suppression at higher pT, the data show an indication of larger suppression than the model predictions in the range of 2<pT<5  GeV/capplication/pdfengPhysical review letters. Melville. Vol. 123, no. 2 (July 2019), 022001, 18 p.Aceleradores de partículasColisões proton-protonColisao de nucleon-nucleoMesonsStudies of beauty suppression via nonprompt D0 mesons in Pb-Pb collisions at √sNN=5.02  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:UFRGSTEXT001099006.pdf.txt001099006.pdf.txtExtracted Texttext/plain85530http://www.lume.ufrgs.br/bitstream/10183/198767/2/001099006.pdf.txtaaaf653aa4f347b40ed77810c679720bMD52ORIGINAL001099006.pdfTexto completo (inglês)application/pdf543908http://www.lume.ufrgs.br/bitstream/10183/198767/1/001099006.pdf967051421fb2a2bfd7a10f557c2e08b7MD5110183/1987672023-08-04 03:34:30.500658oai:www.lume.ufrgs.br:10183/198767Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-08-04T06:34:30Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Studies of beauty suppression via nonprompt D0 mesons in Pb-Pb collisions at √sNN=5.02  TeV
title Studies of beauty suppression via nonprompt D0 mesons in Pb-Pb collisions at √sNN=5.02  TeV
spellingShingle Studies of beauty suppression via nonprompt D0 mesons in Pb-Pb collisions at √sNN=5.02  TeV
Sirunyan, A. M.
Aceleradores de partículas
Colisões proton-proton
Colisao de nucleon-nucleo
Mesons
title_short Studies of beauty suppression via nonprompt D0 mesons in Pb-Pb collisions at √sNN=5.02  TeV
title_full Studies of beauty suppression via nonprompt D0 mesons in Pb-Pb collisions at √sNN=5.02  TeV
title_fullStr Studies of beauty suppression via nonprompt D0 mesons in Pb-Pb collisions at √sNN=5.02  TeV
title_full_unstemmed Studies of beauty suppression via nonprompt D0 mesons in Pb-Pb collisions at √sNN=5.02  TeV
title_sort Studies of beauty suppression via nonprompt D0 mesons in Pb-Pb collisions at √sNN=5.02  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
Colisões proton-proton
Colisao de nucleon-nucleo
Mesons
topic Aceleradores de partículas
Colisões proton-proton
Colisao de nucleon-nucleo
Mesons
description The transverse momentum spectra of D0 mesons from b hadron decays are measured at midrapidity (|y|<1) in pp and Pb-Pb collisions at a nucleon-nucleon center of mass energy of 5.02 TeV with the CMS detector at the LHC. The D0 mesons from b hadron decays are distinguished from prompt D0 mesons by their decay topologies. In Pb-Pb collisions, the B→D0 yield is found to be suppressed in the measured pT range from 2 to 100  GeV/c as compared to pp collisions. The suppression is weaker than that of prompt D0 mesons and charged hadrons for pT around 10  GeV/c. While theoretical calculations incorporating partonic energy loss in the quark-gluon plasma can successfully describe the measured B→D0 suppression at higher pT, the data show an indication of larger suppression than the model predictions in the range of 2<pT<5  GeV/c
publishDate 2019
dc.date.accessioned.fl_str_mv 2019-09-04T02:35:20Z
dc.date.issued.fl_str_mv 2019
dc.type.driver.fl_str_mv Estrangeiro
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/198767
dc.identifier.issn.pt_BR.fl_str_mv 0031-9007
dc.identifier.nrb.pt_BR.fl_str_mv 001099006
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001099006
url http://hdl.handle.net/10183/198767
dc.language.iso.fl_str_mv eng
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dc.relation.ispartof.pt_BR.fl_str_mv Physical review letters. Melville. Vol. 123, no. 2 (July 2019), 022001, 18 p.
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