K0S K0S and K0S K± femtoscopy in pp collisions at √s = 5.02 TeV and 13 TeV
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , |
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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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 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/10183/249547 |
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0370-2693 |
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001149124 |
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0370-2693 001149124 |
url |
http://hdl.handle.net/10183/249547 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Physics letters. B. Amsterdam. Vol. 833 (Oct. 2022), 137335, 15 p. |
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openAccess |
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