Observation of B0 → ψ(2S)K0Sπ+π− and B0s → ψ(2S)K0S decays

Detalhes bibliográficos
Autor(a) principal: Tumasyan, Armen
Data de Publicação: 2022
Outros Autores: Silveira, Gustavo Gil da, Bernardes, César Augusto, CMS Collaboration
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/252879
Resumo: Using a data sample of s√=13TeV proton-proton collisions collected by the CMS experiment at the LHC in 2017 and 2018 with an integrated luminosity of 103~fb−1, the B0s→ψ(2S)K0S and B0→ψ(2S)K0Sπ+π− decays are observed with significances exceeding 5 standard deviations. The resulting branching fraction ratios, measured for the first time, correspond to B(B0s→ψ(2S)K0S)/B(B0→ψ(2S)K0S)=(3.33±0.69(stat)±0.11(syst)±0.34(fs/fd))×10−2 and B(B0→ψ(2S)K0Sπ+π−)/B(B0→ψ(2S)K0S)=0.480±0.013(stat)±0.032(syst), where the last uncertainty in the first ratio is related to the uncertainty in the ratio of production cross sections of B0s and B0 mesons, fs/fd.
id UFRGS-2_71cb9f900154c9fb18228b6296eb76ad
oai_identifier_str oai:www.lume.ufrgs.br:10183/252879
network_acronym_str UFRGS-2
network_name_str Repositório Institucional da UFRGS
repository_id_str
spelling Tumasyan, ArmenSilveira, Gustavo Gil daBernardes, César AugustoCMS Collaboration2022-12-20T04:52:05Z20221434-6044http://hdl.handle.net/10183/252879001150355Using a data sample of s√=13TeV proton-proton collisions collected by the CMS experiment at the LHC in 2017 and 2018 with an integrated luminosity of 103~fb−1, the B0s→ψ(2S)K0S and B0→ψ(2S)K0Sπ+π− decays are observed with significances exceeding 5 standard deviations. The resulting branching fraction ratios, measured for the first time, correspond to B(B0s→ψ(2S)K0S)/B(B0→ψ(2S)K0S)=(3.33±0.69(stat)±0.11(syst)±0.34(fs/fd))×10−2 and B(B0→ψ(2S)K0Sπ+π−)/B(B0→ψ(2S)K0S)=0.480±0.013(stat)±0.032(syst), where the last uncertainty in the first ratio is related to the uncertainty in the ratio of production cross sections of B0s and B0 mesons, fs/fd.application/pdfengThe European physical journal. C, Particles and fields. Berlin. Vol. 82, no. 5 (May 2022), 499, 25 p.Aceleradores de partículasColisões proton-protonLuminosidadeObservation of B0 → ψ(2S)K0Sπ+π− and B0s → ψ(2S)K0S decaysEstrangeiroinfo: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:UFRGSTEXT001150355.pdf.txt001150355.pdf.txtExtracted Texttext/plain91904http://www.lume.ufrgs.br/bitstream/10183/252879/2/001150355.pdf.txt8ec8c92594fd58fb73521040b65e8429MD52ORIGINAL001150355.pdfTexto completo (inglês)application/pdf2153345http://www.lume.ufrgs.br/bitstream/10183/252879/1/001150355.pdfef77eb648088339e9ab4ebeedc531a00MD5110183/2528792023-07-08 03:34:55.115836oai:www.lume.ufrgs.br:10183/252879Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-07-08T06:34:55Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Observation of B0 → ψ(2S)K0Sπ+π− and B0s → ψ(2S)K0S decays
title Observation of B0 → ψ(2S)K0Sπ+π− and B0s → ψ(2S)K0S decays
spellingShingle Observation of B0 → ψ(2S)K0Sπ+π− and B0s → ψ(2S)K0S decays
Tumasyan, Armen
Aceleradores de partículas
Colisões proton-proton
Luminosidade
title_short Observation of B0 → ψ(2S)K0Sπ+π− and B0s → ψ(2S)K0S decays
title_full Observation of B0 → ψ(2S)K0Sπ+π− and B0s → ψ(2S)K0S decays
title_fullStr Observation of B0 → ψ(2S)K0Sπ+π− and B0s → ψ(2S)K0S decays
title_full_unstemmed Observation of B0 → ψ(2S)K0Sπ+π− and B0s → ψ(2S)K0S decays
title_sort Observation of B0 → ψ(2S)K0Sπ+π− and B0s → ψ(2S)K0S decays
author Tumasyan, Armen
author_facet Tumasyan, Armen
Silveira, Gustavo Gil da
Bernardes, César Augusto
CMS Collaboration
author_role author
author2 Silveira, Gustavo Gil da
Bernardes, César Augusto
CMS Collaboration
author2_role author
author
author
dc.contributor.author.fl_str_mv Tumasyan, Armen
Silveira, Gustavo Gil da
Bernardes, César Augusto
CMS Collaboration
dc.subject.por.fl_str_mv Aceleradores de partículas
Colisões proton-proton
Luminosidade
topic Aceleradores de partículas
Colisões proton-proton
Luminosidade
description Using a data sample of s√=13TeV proton-proton collisions collected by the CMS experiment at the LHC in 2017 and 2018 with an integrated luminosity of 103~fb−1, the B0s→ψ(2S)K0S and B0→ψ(2S)K0Sπ+π− decays are observed with significances exceeding 5 standard deviations. The resulting branching fraction ratios, measured for the first time, correspond to B(B0s→ψ(2S)K0S)/B(B0→ψ(2S)K0S)=(3.33±0.69(stat)±0.11(syst)±0.34(fs/fd))×10−2 and B(B0→ψ(2S)K0Sπ+π−)/B(B0→ψ(2S)K0S)=0.480±0.013(stat)±0.032(syst), where the last uncertainty in the first ratio is related to the uncertainty in the ratio of production cross sections of B0s and B0 mesons, fs/fd.
publishDate 2022
dc.date.accessioned.fl_str_mv 2022-12-20T04:52:05Z
dc.date.issued.fl_str_mv 2022
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/10183/252879
dc.identifier.issn.pt_BR.fl_str_mv 1434-6044
dc.identifier.nrb.pt_BR.fl_str_mv 001150355
identifier_str_mv 1434-6044
001150355
url http://hdl.handle.net/10183/252879
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv The European physical journal. C, Particles and fields. Berlin. Vol. 82, no. 5 (May 2022), 499, 25 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/10183/252879/2/001150355.pdf.txt
http://www.lume.ufrgs.br/bitstream/10183/252879/1/001150355.pdf
bitstream.checksum.fl_str_mv 8ec8c92594fd58fb73521040b65e8429
ef77eb648088339e9ab4ebeedc531a00
bitstream.checksumAlgorithm.fl_str_mv 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_ 1798487541942321152

Registros relacionados