Study of resonance formation in the mass region 1400−1500MeV through the reaction γγ→K0SK±π∓

Autores: Dova, María Teresa; L3 Collaboration
Año de publicación: 2007
Idioma: inglés
Tipo de recurso: artículo
Estado: versión publicada
Descripción: The K⁰_SK^±π∓ final state in two-photon collisions is studied with the L3 detector at LEP at e+e− centre-of-mass energies from 183 to 209 GeV with an integrated luminosity of 664.6 pb⁻¹. The η (1475) and f₁(1420) mesons are observed and their contribution is separated by measuring the formation rates as a function of the photon virtuality Q². The η (1475) is found to be dominant for Q² ≤ 0.01 GeV² and its two-photon width is measured to be 0.23±0.05 (stat.) ±0.05 (sys.) keV. At higher Q², the f⁻¹(1420) is formed and decays to K*(892)K. The γγ coupling and form factor parameters of this state are measured to be Γγγ = 3.2 ± 0.6 (stat.) ± 0.7 (sys.) keV and Λ₁ = 926 ± 72 (stat.) ± 32 (sys.) MeV, respectively.
Facultad de Ciencias Exactas
Materia: Ciencias Exactas
Física
large electron positron collider
Resonancia
Fotones
Nivel de accesibilidad: acceso abierto
Condiciones de uso: http://creativecommons.org/licenses/by/4.0/
Repositorio
Institución: Universidad Nacional de La Plata
OAI Identificador: oai:sedici.unlp.edu.ar:10915/81664

Acceder

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network_acronym_str	SEDICI
repository_id_str	1329
network_name_str	SEDICI (UNLP)
spelling	Study of resonance formation in the mass region 1400−1500MeV through the reaction γγ→K<sup>0</sup><sub>S</sub>K<sup>±</sup>π∓Dova, María TeresaL3 CollaborationCiencias ExactasFísicalarge electron positron colliderResonanciaFotonesThe K<sup>0</sup><sub>S</sub>K<sup>±</sup>π∓ final state in two-photon collisions is studied with the L3 detector at LEP at e+e− centre-of-mass energies from 183 to 209 GeV with an integrated luminosity of 664.6 pb<sup>−1</sup>. The η (1475) and f<sub>1</sub>(1420) mesons are observed and their contribution is separated by measuring the formation rates as a function of the photon virtuality Q<sup>2</sup>. The η (1475) is found to be dominant for Q<sup>2</sup> ≤ 0.01 GeV<sup>2</sup> and its two-photon width is measured to be 0.23±0.05 (stat.) ±0.05 (sys.) keV. At higher Q<sup>2</sup>, the f<sup>−1</sup>(1420) is formed and decays to K*(892)K. The γγ coupling and form factor parameters of this state are measured to be Γγγ = 3.2 ± 0.6 (stat.) ± 0.7 (sys.) keV and Λ<sub>1</sub> = 926 ± 72 (stat.) ± 32 (sys.) MeV, respectively.Facultad de Ciencias Exactas2007-03-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/81664enginfo:eu-repo/semantics/altIdentifier/issn/1029-8479info:eu-repo/semantics/altIdentifier/doi/10.1088/1126-6708/2007/03/018info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-11-05T12:54:37Zoai:sedici.unlp.edu.ar:10915/81664Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-11-05 12:54:37.224SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv	Study of resonance formation in the mass region 1400−1500MeV through the reaction γγ→K<sup>0</sup><sub>S</sub>K<sup>±</sup>π∓
title	Study of resonance formation in the mass region 1400−1500MeV through the reaction γγ→K<sup>0</sup><sub>S</sub>K<sup>±</sup>π∓
spellingShingle	Study of resonance formation in the mass region 1400−1500MeV through the reaction γγ→K<sup>0</sup><sub>S</sub>K<sup>±</sup>π∓ Dova, María Teresa Ciencias Exactas Física large electron positron collider Resonancia Fotones
title_short	Study of resonance formation in the mass region 1400−1500MeV through the reaction γγ→K<sup>0</sup><sub>S</sub>K<sup>±</sup>π∓
title_full	Study of resonance formation in the mass region 1400−1500MeV through the reaction γγ→K<sup>0</sup><sub>S</sub>K<sup>±</sup>π∓
title_fullStr	Study of resonance formation in the mass region 1400−1500MeV through the reaction γγ→K<sup>0</sup><sub>S</sub>K<sup>±</sup>π∓
title_full_unstemmed	Study of resonance formation in the mass region 1400−1500MeV through the reaction γγ→K<sup>0</sup><sub>S</sub>K<sup>±</sup>π∓
title_sort	Study of resonance formation in the mass region 1400−1500MeV through the reaction γγ→K<sup>0</sup><sub>S</sub>K<sup>±</sup>π∓
dc.creator.none.fl_str_mv	Dova, María Teresa L3 Collaboration
author	Dova, María Teresa
author_facet	Dova, María Teresa L3 Collaboration
author_role	author
author2	L3 Collaboration
author2_role	author
dc.subject.none.fl_str_mv	Ciencias Exactas Física large electron positron collider Resonancia Fotones
topic	Ciencias Exactas Física large electron positron collider Resonancia Fotones
dc.description.none.fl_txt_mv	The K<sup>0</sup><sub>S</sub>K<sup>±</sup>π∓ final state in two-photon collisions is studied with the L3 detector at LEP at e+e− centre-of-mass energies from 183 to 209 GeV with an integrated luminosity of 664.6 pb<sup>−1</sup>. The η (1475) and f<sub>1</sub>(1420) mesons are observed and their contribution is separated by measuring the formation rates as a function of the photon virtuality Q<sup>2</sup>. The η (1475) is found to be dominant for Q<sup>2</sup> ≤ 0.01 GeV<sup>2</sup> and its two-photon width is measured to be 0.23±0.05 (stat.) ±0.05 (sys.) keV. At higher Q<sup>2</sup>, the f<sup>−1</sup>(1420) is formed and decays to K*(892)K. The γγ coupling and form factor parameters of this state are measured to be Γγγ = 3.2 ± 0.6 (stat.) ± 0.7 (sys.) keV and Λ<sub>1</sub> = 926 ± 72 (stat.) ± 32 (sys.) MeV, respectively. Facultad de Ciencias Exactas
description	The K<sup>0</sup><sub>S</sub>K<sup>±</sup>π∓ final state in two-photon collisions is studied with the L3 detector at LEP at e+e− centre-of-mass energies from 183 to 209 GeV with an integrated luminosity of 664.6 pb<sup>−1</sup>. The η (1475) and f<sub>1</sub>(1420) mesons are observed and their contribution is separated by measuring the formation rates as a function of the photon virtuality Q<sup>2</sup>. The η (1475) is found to be dominant for Q<sup>2</sup> ≤ 0.01 GeV<sup>2</sup> and its two-photon width is measured to be 0.23±0.05 (stat.) ±0.05 (sys.) keV. At higher Q<sup>2</sup>, the f<sup>−1</sup>(1420) is formed and decays to K*(892)K. The γγ coupling and form factor parameters of this state are measured to be Γγγ = 3.2 ± 0.6 (stat.) ± 0.7 (sys.) keV and Λ<sub>1</sub> = 926 ± 72 (stat.) ± 32 (sys.) MeV, respectively.
publishDate	2007
dc.date.none.fl_str_mv	2007-03-06
dc.type.none.fl_str_mv	info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo
format	article
status_str	publishedVersion
dc.identifier.none.fl_str_mv	http://sedici.unlp.edu.ar/handle/10915/81664
url	http://sedici.unlp.edu.ar/handle/10915/81664
dc.language.none.fl_str_mv	eng
language	eng
dc.relation.none.fl_str_mv	info:eu-repo/semantics/altIdentifier/issn/1029-8479 info:eu-repo/semantics/altIdentifier/doi/10.1088/1126-6708/2007/03/018
dc.rights.none.fl_str_mv	info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv	openAccess
rights_invalid_str_mv	http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv	application/pdf
dc.source.none.fl_str_mv	reponame:SEDICI (UNLP) instname:Universidad Nacional de La Plata instacron:UNLP
reponame_str	SEDICI (UNLP)
collection	SEDICI (UNLP)
instname_str	Universidad Nacional de La Plata
instacron_str	UNLP
institution	UNLP
repository.name.fl_str_mv	SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv	alira@sedici.unlp.edu.ar
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score	13.084122

Study of resonance formation in the mass region 1400−1500MeV through the reaction γγ→K<sup>0</sup><sub>S</sub>K<sup>±</sup>π∓

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