Search for a common baryon source in high-multiplicity pp collisions at the LHC

Detalhes bibliográficos
Autor(a) principal: Acharya, Shreyasi
Data de Publicação: 2020
Outros Autores: Gay Ducati, Maria Beatriz, Pereira, Luis Gustavo, Pezzi, Rafael Peretti, ALICE Collaboration
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/222831
Resumo: We report on the measurement of the size of the particle-emitting source from two-baryon correlations with ALICE in high-multiplicity pp collisions at √s = 13 TeV. The source radius is studied with low relative momentum p–p, p–p, p–, and p– pairs as a function of the pair transverse mass mT considering for the first time in a quantitative way the effect of strong resonance decays. After correcting for this effect, the radii extracted for pairs of different particle species agree. This indicates that protons, antiprotons, s, and s originate from the same source. Within the measured mT range (1.1–2.2) GeV/c2 the invariant radius of this common source varies between 1.3 and 0.85 fm. These results provide a precise reference for studies of the strong hadron–hadron interactions and for the investigation of collective properties in small colliding systems.
id UFRGS-2_e70f765dc592aa2ed09a2cdaee7fe66d
oai_identifier_str oai:www.lume.ufrgs.br:10183/222831
network_acronym_str UFRGS-2
network_name_str Repositório Institucional da UFRGS
repository_id_str
spelling Acharya, ShreyasiGay Ducati, Maria BeatrizPereira, Luis GustavoPezzi, Rafael PerettiALICE Collaboration2021-06-25T04:24:33Z20200370-2693http://hdl.handle.net/10183/222831001122955We report on the measurement of the size of the particle-emitting source from two-baryon correlations with ALICE in high-multiplicity pp collisions at √s = 13 TeV. The source radius is studied with low relative momentum p–p, p–p, p–, and p– pairs as a function of the pair transverse mass mT considering for the first time in a quantitative way the effect of strong resonance decays. After correcting for this effect, the radii extracted for pairs of different particle species agree. This indicates that protons, antiprotons, s, and s originate from the same source. Within the measured mT range (1.1–2.2) GeV/c2 the invariant radius of this common source varies between 1.3 and 0.85 fm. These results provide a precise reference for studies of the strong hadron–hadron interactions and for the investigation of collective properties in small colliding systems.application/pdfengPhysics letters. B. Amsterdam. Vol. 811 (Dec. 2020), 135849, 13 p.Aceleradores de partículasColisões proton-protonSearch for a common baryon source in high-multiplicity pp collisions at the LHCEstrangeiroinfo: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:UFRGSTEXT001122955.pdf.txt001122955.pdf.txtExtracted Texttext/plain83183http://www.lume.ufrgs.br/bitstream/10183/222831/2/001122955.pdf.txt3850fcc1ec1ee52960462b5e657c8a7aMD52ORIGINAL001122955.pdfTexto completo (inglês)application/pdf1212847http://www.lume.ufrgs.br/bitstream/10183/222831/1/001122955.pdf1ebc1ed2c7f866650c49ab36b1bb019eMD5110183/2228312023-11-14 04:23:06.340738oai:www.lume.ufrgs.br:10183/222831Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-11-14T06:23:06Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Search for a common baryon source in high-multiplicity pp collisions at the LHC
title Search for a common baryon source in high-multiplicity pp collisions at the LHC
spellingShingle Search for a common baryon source in high-multiplicity pp collisions at the LHC
Acharya, Shreyasi
Aceleradores de partículas
Colisões proton-proton
title_short Search for a common baryon source in high-multiplicity pp collisions at the LHC
title_full Search for a common baryon source in high-multiplicity pp collisions at the LHC
title_fullStr Search for a common baryon source in high-multiplicity pp collisions at the LHC
title_full_unstemmed Search for a common baryon source in high-multiplicity pp collisions at the LHC
title_sort Search for a common baryon source in high-multiplicity pp collisions at the LHC
author Acharya, Shreyasi
author_facet Acharya, Shreyasi
Gay Ducati, Maria Beatriz
Pereira, Luis Gustavo
Pezzi, Rafael Peretti
ALICE Collaboration
author_role author
author2 Gay Ducati, Maria Beatriz
Pereira, Luis Gustavo
Pezzi, Rafael Peretti
ALICE Collaboration
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Acharya, Shreyasi
Gay Ducati, Maria Beatriz
Pereira, Luis Gustavo
Pezzi, Rafael Peretti
ALICE Collaboration
dc.subject.por.fl_str_mv Aceleradores de partículas
Colisões proton-proton
topic Aceleradores de partículas
Colisões proton-proton
description We report on the measurement of the size of the particle-emitting source from two-baryon correlations with ALICE in high-multiplicity pp collisions at √s = 13 TeV. The source radius is studied with low relative momentum p–p, p–p, p–, and p– pairs as a function of the pair transverse mass mT considering for the first time in a quantitative way the effect of strong resonance decays. After correcting for this effect, the radii extracted for pairs of different particle species agree. This indicates that protons, antiprotons, s, and s originate from the same source. Within the measured mT range (1.1–2.2) GeV/c2 the invariant radius of this common source varies between 1.3 and 0.85 fm. These results provide a precise reference for studies of the strong hadron–hadron interactions and for the investigation of collective properties in small colliding systems.
publishDate 2020
dc.date.issued.fl_str_mv 2020
dc.date.accessioned.fl_str_mv 2021-06-25T04:24:33Z
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/10183/222831
dc.identifier.issn.pt_BR.fl_str_mv 0370-2693
dc.identifier.nrb.pt_BR.fl_str_mv 001122955
identifier_str_mv 0370-2693
001122955
url http://hdl.handle.net/10183/222831
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv Physics letters. B. Amsterdam. Vol. 811 (Dec. 2020), 135849, 13 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/10183/222831/2/001122955.pdf.txt
http://www.lume.ufrgs.br/bitstream/10183/222831/1/001122955.pdf
bitstream.checksum.fl_str_mv 3850fcc1ec1ee52960462b5e657c8a7a
1ebc1ed2c7f866650c49ab36b1bb019e
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_ 1801225022283448320

Registros relacionados