Production of η and η mesons in pp and pPb collisions
The production of η and η mesons is studied in proton-proton and proton-lead collisions collected with the LHCb detector. Proton-proton collisions are studied at center-of-mass energies of 5.02 and 13 TeV and proton-lead collisions are studied at a center-of-mass energy per nucleon of 8.16 TeV. The...
| Autores: | , , , , , , , , , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2024 |
| País: | España |
| Institución: | Universidad de Barcelona |
| Repositorio: | Dipòsit Digital de la UB |
| OAI Identifier: | oai:diposit.ub.edu:2445/221837 |
| Acceso en línea: | https://hdl.handle.net/2445/221837 |
| Access Level: | acceso abierto |
| Palabra clave: | Col·lisions d'ions pesats Partícules (Matèria) Cromodinàmica quàntica Heavy ion collision Particles Quantum chromodynamics |
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Production of η and η mesons in pp and pPb collisionsComerma Montells, AlbertGarcia Moreno, PaulaGarrido Beltrán, LluísGioventù, AlessandraGironella Gironell, PereGomez Fernandez, P.Graugés Pous, EugeniLobo Salvia, AniolLópez Huertas, AlbertManera Escalero, RafelMarin Benito, CarlaMauricio Ferre, JoanAlfonso Albero, AlejandroVazquez Gomez, RicardoLHCb CollaborationCol·lisions d'ions pesatsPartícules (Matèria)Cromodinàmica quànticaHeavy ion collisionParticlesQuantum chromodynamicsThe production of η and η mesons is studied in proton-proton and proton-lead collisions collected with the LHCb detector. Proton-proton collisions are studied at center-of-mass energies of 5.02 and 13 TeV and proton-lead collisions are studied at a center-of-mass energy per nucleon of 8.16 TeV. The studies are performed in center-of-mass (c.m.) rapidity regions 2.5 < yc.m. < 3.5 (forward rapidity) and −4.0 < yc.m. < −3.0 (backward rapidity) defined relative to the proton beam direction. The η and η production cross sections are measured differentially as a function of transverse momentum for 1.5 < pT < 10 GeV and 3 < pT < 10 GeV, respectively. The differential cross sections are used to calculate nuclear modification factors. The nuclear modification factors for η and η mesons agree at both forward and backward rapidity, showing no significant evidence of mass dependence. The differential cross sections of η mesons are also used to calculate η/π0 cross-section ratios, which show evidence of a deviation from the world average. These studies offer new constraints on mass-dependent nuclear effects in heavy-ion collisions, as well as η and η meson fragmentation.American Physical Society2024info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/221837Articles publicats en revistes (Física Quàntica i Astrofísica)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: https://doi.org/10.1103/PhysRevC.109.024907Physical Review C, 2024, vol. 109, num.024907https://doi.org/10.1103/PhysRevC.109.024907(c) American Physical Society, 2024info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/2218372026-05-27T06:46:51Z |
| dc.title.none.fl_str_mv |
Production of η and η mesons in pp and pPb collisions |
| title |
Production of η and η mesons in pp and pPb collisions |
| spellingShingle |
Production of η and η mesons in pp and pPb collisions Comerma Montells, Albert Col·lisions d'ions pesats Partícules (Matèria) Cromodinàmica quàntica Heavy ion collision Particles Quantum chromodynamics |
| title_short |
Production of η and η mesons in pp and pPb collisions |
| title_full |
Production of η and η mesons in pp and pPb collisions |
| title_fullStr |
Production of η and η mesons in pp and pPb collisions |
| title_full_unstemmed |
Production of η and η mesons in pp and pPb collisions |
| title_sort |
Production of η and η mesons in pp and pPb collisions |
| dc.creator.none.fl_str_mv |
Comerma Montells, Albert Garcia Moreno, Paula Garrido Beltrán, Lluís Gioventù, Alessandra Gironella Gironell, Pere Gomez Fernandez, P. Graugés Pous, Eugeni Lobo Salvia, Aniol López Huertas, Albert Manera Escalero, Rafel Marin Benito, Carla Mauricio Ferre, Joan Alfonso Albero, Alejandro Vazquez Gomez, Ricardo LHCb Collaboration |
| author |
Comerma Montells, Albert |
| author_facet |
Comerma Montells, Albert Garcia Moreno, Paula Garrido Beltrán, Lluís Gioventù, Alessandra Gironella Gironell, Pere Gomez Fernandez, P. Graugés Pous, Eugeni Lobo Salvia, Aniol López Huertas, Albert Manera Escalero, Rafel Marin Benito, Carla Mauricio Ferre, Joan Alfonso Albero, Alejandro Vazquez Gomez, Ricardo LHCb Collaboration |
| author_role |
author |
| author2 |
Garcia Moreno, Paula Garrido Beltrán, Lluís Gioventù, Alessandra Gironella Gironell, Pere Gomez Fernandez, P. Graugés Pous, Eugeni Lobo Salvia, Aniol López Huertas, Albert Manera Escalero, Rafel Marin Benito, Carla Mauricio Ferre, Joan Alfonso Albero, Alejandro Vazquez Gomez, Ricardo LHCb Collaboration |
| author2_role |
author author author author author author author author author author author author author author |
| dc.subject.none.fl_str_mv |
Col·lisions d'ions pesats Partícules (Matèria) Cromodinàmica quàntica Heavy ion collision Particles Quantum chromodynamics |
| topic |
Col·lisions d'ions pesats Partícules (Matèria) Cromodinàmica quàntica Heavy ion collision Particles Quantum chromodynamics |
| description |
The production of η and η mesons is studied in proton-proton and proton-lead collisions collected with the LHCb detector. Proton-proton collisions are studied at center-of-mass energies of 5.02 and 13 TeV and proton-lead collisions are studied at a center-of-mass energy per nucleon of 8.16 TeV. The studies are performed in center-of-mass (c.m.) rapidity regions 2.5 < yc.m. < 3.5 (forward rapidity) and −4.0 < yc.m. < −3.0 (backward rapidity) defined relative to the proton beam direction. The η and η production cross sections are measured differentially as a function of transverse momentum for 1.5 < pT < 10 GeV and 3 < pT < 10 GeV, respectively. The differential cross sections are used to calculate nuclear modification factors. The nuclear modification factors for η and η mesons agree at both forward and backward rapidity, showing no significant evidence of mass dependence. The differential cross sections of η mesons are also used to calculate η/π0 cross-section ratios, which show evidence of a deviation from the world average. These studies offer new constraints on mass-dependent nuclear effects in heavy-ion collisions, as well as η and η meson fragmentation. |
| publishDate |
2024 |
| dc.date.none.fl_str_mv |
2024 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
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article |
| status_str |
publishedVersion |
| dc.identifier.none.fl_str_mv |
https://hdl.handle.net/2445/221837 |
| url |
https://hdl.handle.net/2445/221837 |
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Inglés |
| language_invalid_str_mv |
Inglés |
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Reproducció del document publicat a: https://doi.org/10.1103/PhysRevC.109.024907 Physical Review C, 2024, vol. 109, num.024907 https://doi.org/10.1103/PhysRevC.109.024907 |
| dc.rights.none.fl_str_mv |
(c) American Physical Society, 2024 info:eu-repo/semantics/openAccess |
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(c) American Physical Society, 2024 |
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openAccess |
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application/pdf |
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American Physical Society |
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American Physical Society |
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Articles publicats en revistes (Física Quàntica i Astrofísica) reponame:Dipòsit Digital de la UB instname:Universidad de Barcelona |
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Universidad de Barcelona |
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Dipòsit Digital de la UB |
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Dipòsit Digital de la UB |
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