Study of excited Λ0b states decaying to Λ0b π+π- in proton-proton collisions at √s = 13 TeV

Bibliographic Details
Main Author: Sirunyan, A. M.
Publication Date: 2020
Other Authors: Silveira, Gustavo Gil da, CMS Collaboration
Format: Article
Language: eng
Source: Repositório Institucional da UFRGS
Download full: http://hdl.handle.net/10183/211743
Summary: A study of excited Λ0b baryons is reported, based on a data sample collected in 2016–2018 with the CMS detector at the LHC in proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of up to 140fb¯1. The existence of four excited Λ0b states: Λ0b (5912)0, Λ0b (5920)0, Λ0b (6146)0 and Λ0b (6152)0 in the Λ0bπ+π- mass spectrum is confirmed, and their masses are measured. The Λ0bπ+π- mass distribution exhibits a broad excess of events in the region of 6040–6100 MeV, whose origin cannot be discerned with the present data.
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spelling Sirunyan, A. M.Silveira, Gustavo Gil daCMS Collaboration2020-07-10T03:42:31Z20200370-2693http://hdl.handle.net/10183/211743001115044A study of excited Λ0b baryons is reported, based on a data sample collected in 2016–2018 with the CMS detector at the LHC in proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of up to 140fb¯1. The existence of four excited Λ0b states: Λ0b (5912)0, Λ0b (5920)0, Λ0b (6146)0 and Λ0b (6152)0 in the Λ0bπ+π- mass spectrum is confirmed, and their masses are measured. The Λ0bπ+π- mass distribution exhibits a broad excess of events in the region of 6040–6100 MeV, whose origin cannot be discerned with the present data.application/pdfengPhysics letters. B. Amsterdam. Vol. 803 (Apr. 2020), 135345, 22 p.Aceleradores de partículasColisões proton-protonCMSPhysicsBeauty baryonHeavy baryonHeavy flavorFlavor spectroscopyExperimental resultsStudy of excited Λ0b states decaying to Λ0b π+π- in proton-proton collisions 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:UFRGSTEXT001115044.pdf.txt001115044.pdf.txtExtracted Texttext/plain86142http://www.lume.ufrgs.br/bitstream/10183/211743/2/001115044.pdf.txtb4a166e5aa88e6474a50d9fcfa564ccfMD52ORIGINAL001115044.pdfTexto completo (inglês)application/pdf735393http://www.lume.ufrgs.br/bitstream/10183/211743/1/001115044.pdf8088a12c990e010ea16e3d354471a792MD5110183/2117432023-07-22 03:41:56.022345oai:www.lume.ufrgs.br:10183/211743Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-07-22T06:41:56Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Study of excited Λ0b states decaying to Λ0b π+π- in proton-proton collisions at √s = 13 TeV
title Study of excited Λ0b states decaying to Λ0b π+π- in proton-proton collisions at √s = 13 TeV
spellingShingle Study of excited Λ0b states decaying to Λ0b π+π- in proton-proton collisions at √s = 13 TeV
Sirunyan, A. M.
Aceleradores de partículas
Colisões proton-proton
CMS
Physics
Beauty baryon
Heavy baryon
Heavy flavor
Flavor spectroscopy
Experimental results
title_short Study of excited Λ0b states decaying to Λ0b π+π- in proton-proton collisions at √s = 13 TeV
title_full Study of excited Λ0b states decaying to Λ0b π+π- in proton-proton collisions at √s = 13 TeV
title_fullStr Study of excited Λ0b states decaying to Λ0b π+π- in proton-proton collisions at √s = 13 TeV
title_full_unstemmed Study of excited Λ0b states decaying to Λ0b π+π- in proton-proton collisions at √s = 13 TeV
title_sort Study of excited Λ0b states decaying to Λ0b π+π- in proton-proton collisions 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
Colisões proton-proton
topic Aceleradores de partículas
Colisões proton-proton
CMS
Physics
Beauty baryon
Heavy baryon
Heavy flavor
Flavor spectroscopy
Experimental results
dc.subject.eng.fl_str_mv CMS
Physics
Beauty baryon
Heavy baryon
Heavy flavor
Flavor spectroscopy
Experimental results
description A study of excited Λ0b baryons is reported, based on a data sample collected in 2016–2018 with the CMS detector at the LHC in proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of up to 140fb¯1. The existence of four excited Λ0b states: Λ0b (5912)0, Λ0b (5920)0, Λ0b (6146)0 and Λ0b (6152)0 in the Λ0bπ+π- mass spectrum is confirmed, and their masses are measured. The Λ0bπ+π- mass distribution exhibits a broad excess of events in the region of 6040–6100 MeV, whose origin cannot be discerned with the present data.
publishDate 2020
dc.date.accessioned.fl_str_mv 2020-07-10T03:42:31Z
dc.date.issued.fl_str_mv 2020
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/10183/211743
dc.identifier.issn.pt_BR.fl_str_mv 0370-2693
dc.identifier.nrb.pt_BR.fl_str_mv 001115044
identifier_str_mv 0370-2693
001115044
url http://hdl.handle.net/10183/211743
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv Physics letters. B. Amsterdam. Vol. 803 (Apr. 2020), 135345, 22 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
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