Masses of ground-state mesons and baryons, including those with heavy quarks
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1103/PhysRevD.100.034008 http://hdl.handle.net/11449/228717 |
Resumo: | Using a confining, symmetry-preserving regularization of a vector×vector contact interaction, we compute the spectra of ground-state pseudoscalar and vector (fg) mesons, scalar and axial-vector (fg) diquarks, and JP=1/2+,3/2+ (fgh) baryons, where f,g,h∈{u,d,s,c,b}. The diquark correlations are essentially dynamical and play a key role in formulating and solving the three-valence-quark baryon problems. The baryon spectrum obtained from this largely algebraic approach reproduces the 22 known experimental masses with an accuracy of 2.9(2.4)%. It also possesses the richness of states typical of constituent-quark models, predicting many heavy-quark baryons not yet observed. This study indicates that diquark correlations are an important component of all baryons; and owing to the dynamical character of the diquarks, it is typically the lightest allowed diquark correlation that defines the most important component of a baryon's Faddeev amplitude. |
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Masses of ground-state mesons and baryons, including those with heavy quarksUsing a confining, symmetry-preserving regularization of a vector×vector contact interaction, we compute the spectra of ground-state pseudoscalar and vector (fg) mesons, scalar and axial-vector (fg) diquarks, and JP=1/2+,3/2+ (fgh) baryons, where f,g,h∈{u,d,s,c,b}. The diquark correlations are essentially dynamical and play a key role in formulating and solving the three-valence-quark baryon problems. The baryon spectrum obtained from this largely algebraic approach reproduces the 22 known experimental masses with an accuracy of 2.9(2.4)%. It also possesses the richness of states typical of constituent-quark models, predicting many heavy-quark baryons not yet observed. This study indicates that diquark correlations are an important component of all baryons; and owing to the dynamical character of the diquarks, it is typically the lightest allowed diquark correlation that defines the most important component of a baryon's Faddeev amplitude.New Energy Technology Engineering Laboratory of Jiangsu Province School of Science Nanjing University of Posts and TelecommunicationsInstituto de Física Teórica Universidade Estadual Paulista, Rua Dr. Bento Teobaldo Ferraz, 271Physics Division Argonne National LaboratoryDepartamento de Sistemas Físicos Químicos y Naturales Universidad Pablo de OlavideInstitut für Theoretische Physik Justus-Liebig-Universität GießenInstituto de Física Teórica Universidade Estadual Paulista, Rua Dr. Bento Teobaldo Ferraz, 271Nanjing University of Posts and TelecommunicationsUniversidade Estadual Paulista (UNESP)Argonne National LaboratoryUniversidad Pablo de OlavideJustus-Liebig-Universität GießenYin, Pei-LinChen, Chen [UNESP]Krein, Gastão [UNESP]Roberts, Craig D.Segovia, JorgeXu, Shu-Sheng2022-04-29T08:28:22Z2022-04-29T08:28:22Z2019-08-09info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1103/PhysRevD.100.034008Physical Review D, v. 100, n. 3, 2019.2470-00292470-0010http://hdl.handle.net/11449/22871710.1103/PhysRevD.100.0340082-s2.0-85072127659Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPhysical Review Dinfo:eu-repo/semantics/openAccess2022-04-29T08:28:23Zoai:repositorio.unesp.br:11449/228717Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T16:56:44.306554Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Masses of ground-state mesons and baryons, including those with heavy quarks |
title |
Masses of ground-state mesons and baryons, including those with heavy quarks |
spellingShingle |
Masses of ground-state mesons and baryons, including those with heavy quarks Yin, Pei-Lin |
title_short |
Masses of ground-state mesons and baryons, including those with heavy quarks |
title_full |
Masses of ground-state mesons and baryons, including those with heavy quarks |
title_fullStr |
Masses of ground-state mesons and baryons, including those with heavy quarks |
title_full_unstemmed |
Masses of ground-state mesons and baryons, including those with heavy quarks |
title_sort |
Masses of ground-state mesons and baryons, including those with heavy quarks |
author |
Yin, Pei-Lin |
author_facet |
Yin, Pei-Lin Chen, Chen [UNESP] Krein, Gastão [UNESP] Roberts, Craig D. Segovia, Jorge Xu, Shu-Sheng |
author_role |
author |
author2 |
Chen, Chen [UNESP] Krein, Gastão [UNESP] Roberts, Craig D. Segovia, Jorge Xu, Shu-Sheng |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Nanjing University of Posts and Telecommunications Universidade Estadual Paulista (UNESP) Argonne National Laboratory Universidad Pablo de Olavide Justus-Liebig-Universität Gießen |
dc.contributor.author.fl_str_mv |
Yin, Pei-Lin Chen, Chen [UNESP] Krein, Gastão [UNESP] Roberts, Craig D. Segovia, Jorge Xu, Shu-Sheng |
description |
Using a confining, symmetry-preserving regularization of a vector×vector contact interaction, we compute the spectra of ground-state pseudoscalar and vector (fg) mesons, scalar and axial-vector (fg) diquarks, and JP=1/2+,3/2+ (fgh) baryons, where f,g,h∈{u,d,s,c,b}. The diquark correlations are essentially dynamical and play a key role in formulating and solving the three-valence-quark baryon problems. The baryon spectrum obtained from this largely algebraic approach reproduces the 22 known experimental masses with an accuracy of 2.9(2.4)%. It also possesses the richness of states typical of constituent-quark models, predicting many heavy-quark baryons not yet observed. This study indicates that diquark correlations are an important component of all baryons; and owing to the dynamical character of the diquarks, it is typically the lightest allowed diquark correlation that defines the most important component of a baryon's Faddeev amplitude. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-08-09 2022-04-29T08:28:22Z 2022-04-29T08:28:22Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1103/PhysRevD.100.034008 Physical Review D, v. 100, n. 3, 2019. 2470-0029 2470-0010 http://hdl.handle.net/11449/228717 10.1103/PhysRevD.100.034008 2-s2.0-85072127659 |
url |
http://dx.doi.org/10.1103/PhysRevD.100.034008 http://hdl.handle.net/11449/228717 |
identifier_str_mv |
Physical Review D, v. 100, n. 3, 2019. 2470-0029 2470-0010 10.1103/PhysRevD.100.034008 2-s2.0-85072127659 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Physical Review D |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128725765586944 |