K0S K0S and K0S K± femtoscopy in pp collisions at √s = 5.02 TeV and 13 TeV

Detalhes bibliográficos
Autor(a) principal: Acharya, Shreyasi
Data de Publicação: 2022
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/10183/249547
Resumo: Femtoscopic correlations with the particle pair combinations K0 SK0 S and K0 SK± are studied in pp collisions at √s = 5.02 and 13 TeV by the ALICE experiment. At both energies, boson source parameters are extracted for both pair combinations, by fitting models based on Gaussian size distributions of the sources, to the measured two-particle correlation functions. The interaction model used for the K0 SK0 S analysis includes quantum statistics and strong final-state interactions through the f0(980) and a0(980) resonances. The model used for the K0 SK± analysis includes only the final-state interaction through the a0 resonance. Source parameters extracted in the present work are compared with published values from pp collisions at √s = 7 TeV and the different pair combinations are found to be consistent. From the observation that the strength of the K0 SK0 S correlations is significantly greater than the strength of the K0 SK± correlations, the new results are compatible with the a0 resonance being a tetraquark state of the form (q1, q2, s, s), where q1 and q2 are u or d quarks.
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spelling Acharya, ShreyasiGay Ducati, Maria BeatrizPereira, Luis GustavoPezzi, Rafael PerettiALICE Collaboration2022-10-03T04:48:36Z20220370-2693http://hdl.handle.net/10183/249547001149124Femtoscopic correlations with the particle pair combinations K0 SK0 S and K0 SK± are studied in pp collisions at √s = 5.02 and 13 TeV by the ALICE experiment. At both energies, boson source parameters are extracted for both pair combinations, by fitting models based on Gaussian size distributions of the sources, to the measured two-particle correlation functions. The interaction model used for the K0 SK0 S analysis includes quantum statistics and strong final-state interactions through the f0(980) and a0(980) resonances. The model used for the K0 SK± analysis includes only the final-state interaction through the a0 resonance. Source parameters extracted in the present work are compared with published values from pp collisions at √s = 7 TeV and the different pair combinations are found to be consistent. From the observation that the strength of the K0 SK0 S correlations is significantly greater than the strength of the K0 SK± correlations, the new results are compatible with the a0 resonance being a tetraquark state of the form (q1, q2, s, s), where q1 and q2 are u or d quarks.application/pdfengPhysics letters. B. Amsterdam. Vol. 833 (Oct. 2022), 137335, 15 p.Aceleradores de partículasColisões proton-protonK0S K0S and K0S K± femtoscopy in pp collisions at √s = 5.02 TeV and 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:UFRGSTEXT001149124.pdf.txt001149124.pdf.txtExtracted Texttext/plain82292http://www.lume.ufrgs.br/bitstream/10183/249547/2/001149124.pdf.txt72eb73fc78353972b90774219c9f7d5eMD52ORIGINAL001149124.pdfTexto completo (inglês)application/pdf920093http://www.lume.ufrgs.br/bitstream/10183/249547/1/001149124.pdfce9266973dd3ee7abac7edb35d92bd4bMD5110183/2495472023-11-12 04:23:43.977973oai:www.lume.ufrgs.br:10183/249547Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-11-12T06:23:43Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv K0S K0S and K0S K± femtoscopy in pp collisions at √s = 5.02 TeV and 13 TeV
title K0S K0S and K0S K± femtoscopy in pp collisions at √s = 5.02 TeV and 13 TeV
spellingShingle K0S K0S and K0S K± femtoscopy in pp collisions at √s = 5.02 TeV and 13 TeV
Acharya, Shreyasi
Aceleradores de partículas
Colisões proton-proton
title_short K0S K0S and K0S K± femtoscopy in pp collisions at √s = 5.02 TeV and 13 TeV
title_full K0S K0S and K0S K± femtoscopy in pp collisions at √s = 5.02 TeV and 13 TeV
title_fullStr K0S K0S and K0S K± femtoscopy in pp collisions at √s = 5.02 TeV and 13 TeV
title_full_unstemmed K0S K0S and K0S K± femtoscopy in pp collisions at √s = 5.02 TeV and 13 TeV
title_sort K0S K0S and K0S K± femtoscopy in pp collisions at √s = 5.02 TeV and 13 TeV
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 Femtoscopic correlations with the particle pair combinations K0 SK0 S and K0 SK± are studied in pp collisions at √s = 5.02 and 13 TeV by the ALICE experiment. At both energies, boson source parameters are extracted for both pair combinations, by fitting models based on Gaussian size distributions of the sources, to the measured two-particle correlation functions. The interaction model used for the K0 SK0 S analysis includes quantum statistics and strong final-state interactions through the f0(980) and a0(980) resonances. The model used for the K0 SK± analysis includes only the final-state interaction through the a0 resonance. Source parameters extracted in the present work are compared with published values from pp collisions at √s = 7 TeV and the different pair combinations are found to be consistent. From the observation that the strength of the K0 SK0 S correlations is significantly greater than the strength of the K0 SK± correlations, the new results are compatible with the a0 resonance being a tetraquark state of the form (q1, q2, s, s), where q1 and q2 are u or d quarks.
publishDate 2022
dc.date.accessioned.fl_str_mv 2022-10-03T04:48:36Z
dc.date.issued.fl_str_mv 2022
dc.type.driver.fl_str_mv Estrangeiro
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dc.identifier.issn.pt_BR.fl_str_mv 0370-2693
dc.identifier.nrb.pt_BR.fl_str_mv 001149124
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url http://hdl.handle.net/10183/249547
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dc.relation.ispartof.pt_BR.fl_str_mv Physics letters. B. Amsterdam. Vol. 833 (Oct. 2022), 137335, 15 p.
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