Light resonances in K<SUP>0</SUP><SUB>S</SUB>K±π∓ and ηπ+π− final states in γγ collisions at LEP
- Autores
- Dova, María Teresa; L3 Collaboration
- Año de publicación
- 2001
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The e+e− → e+e−K0 SK±π∓ and e+e− → e+e−ηπ+π− final states are studied with the L3 detector at LEP using data collected at centre-of-mass energies from 183 GeV up to 202 GeV. The mass spectrum of the K0 SK±π∓ final state shows an enhancement around 1470 MeV, which is identified with the pseudoscalar meson η(1440). This state is observed in γ γ collisions for the first time and its two-photon width is measured to be Γγ γ (η(1440)) × BR(η(1440) → KKπ ) = 212 ± 50 (stat.) ± 23 (sys.) eV. Clear evidence is also obtained for the formation of the axial vector mesons f1(1420) and f1(1285). In the ηπ+π− channel the f1(1285) is observed, and upper limits for the formation of η(1440) and η(1295) are obtained.
Facultad de Ciencias Exactas - Materia
-
Ciencias Exactas
Física
L3 detector at LEP
centre-of-mass energies
mass spectrum - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
.jpg)
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/75729
Ver los metadatos del registro completo
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Light resonances in K<SUP>0</SUP><SUB>S</SUB>K±π∓ and ηπ+π− final states in γγ collisions at LEPDova, María TeresaL3 CollaborationCiencias ExactasFísicaL3 detector at LEPcentre-of-mass energiesmass spectrumThe e+e− → e+e−K0 SK±π∓ and e+e− → e+e−ηπ+π− final states are studied with the L3 detector at LEP using data collected at centre-of-mass energies from 183 GeV up to 202 GeV. The mass spectrum of the K0 SK±π∓ final state shows an enhancement around 1470 MeV, which is identified with the pseudoscalar meson η(1440). This state is observed in γ γ collisions for the first time and its two-photon width is measured to be Γγ γ (η(1440)) × BR(η(1440) → KKπ ) = 212 ± 50 (stat.) ± 23 (sys.) eV. Clear evidence is also obtained for the formation of the axial vector mesons f1(1420) and f1(1285). In the ηπ+π− channel the f1(1285) is observed, and upper limits for the formation of η(1440) and η(1295) are obtained.Facultad de Ciencias Exactas2001-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf1-11http://sedici.unlp.edu.ar/handle/10915/75729enginfo:eu-repo/semantics/altIdentifier/issn/0370-2693info:eu-repo/semantics/altIdentifier/doi/10.1016/S0370-2693(01)00102-2info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:12:13Zoai:sedici.unlp.edu.ar:10915/75729Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:12:13.29SEDICI (UNLP) - Universidad Nacional de La Platafalse |
| dc.title.none.fl_str_mv |
Light resonances in K<SUP>0</SUP><SUB>S</SUB>K±π∓ and ηπ+π− final states in γγ collisions at LEP |
| title |
Light resonances in K<SUP>0</SUP><SUB>S</SUB>K±π∓ and ηπ+π− final states in γγ collisions at LEP |
| spellingShingle |
Light resonances in K<SUP>0</SUP><SUB>S</SUB>K±π∓ and ηπ+π− final states in γγ collisions at LEP Dova, María Teresa Ciencias Exactas Física L3 detector at LEP centre-of-mass energies mass spectrum |
| title_short |
Light resonances in K<SUP>0</SUP><SUB>S</SUB>K±π∓ and ηπ+π− final states in γγ collisions at LEP |
| title_full |
Light resonances in K<SUP>0</SUP><SUB>S</SUB>K±π∓ and ηπ+π− final states in γγ collisions at LEP |
| title_fullStr |
Light resonances in K<SUP>0</SUP><SUB>S</SUB>K±π∓ and ηπ+π− final states in γγ collisions at LEP |
| title_full_unstemmed |
Light resonances in K<SUP>0</SUP><SUB>S</SUB>K±π∓ and ηπ+π− final states in γγ collisions at LEP |
| title_sort |
Light resonances in K<SUP>0</SUP><SUB>S</SUB>K±π∓ and ηπ+π− final states in γγ collisions at LEP |
| 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 L3 detector at LEP centre-of-mass energies mass spectrum |
| topic |
Ciencias Exactas Física L3 detector at LEP centre-of-mass energies mass spectrum |
| dc.description.none.fl_txt_mv |
The e+e− → e+e−K0 SK±π∓ and e+e− → e+e−ηπ+π− final states are studied with the L3 detector at LEP using data collected at centre-of-mass energies from 183 GeV up to 202 GeV. The mass spectrum of the K0 SK±π∓ final state shows an enhancement around 1470 MeV, which is identified with the pseudoscalar meson η(1440). This state is observed in γ γ collisions for the first time and its two-photon width is measured to be Γγ γ (η(1440)) × BR(η(1440) → KKπ ) = 212 ± 50 (stat.) ± 23 (sys.) eV. Clear evidence is also obtained for the formation of the axial vector mesons f1(1420) and f1(1285). In the ηπ+π− channel the f1(1285) is observed, and upper limits for the formation of η(1440) and η(1295) are obtained. Facultad de Ciencias Exactas |
| description |
The e+e− → e+e−K0 SK±π∓ and e+e− → e+e−ηπ+π− final states are studied with the L3 detector at LEP using data collected at centre-of-mass energies from 183 GeV up to 202 GeV. The mass spectrum of the K0 SK±π∓ final state shows an enhancement around 1470 MeV, which is identified with the pseudoscalar meson η(1440). This state is observed in γ γ collisions for the first time and its two-photon width is measured to be Γγ γ (η(1440)) × BR(η(1440) → KKπ ) = 212 ± 50 (stat.) ± 23 (sys.) eV. Clear evidence is also obtained for the formation of the axial vector mesons f1(1420) and f1(1285). In the ηπ+π− channel the f1(1285) is observed, and upper limits for the formation of η(1440) and η(1295) are obtained. |
| publishDate |
2001 |
| dc.date.none.fl_str_mv |
2001-03-01 |
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info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
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article |
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publishedVersion |
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http://sedici.unlp.edu.ar/handle/10915/75729 |
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http://sedici.unlp.edu.ar/handle/10915/75729 |
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eng |
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eng |
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info:eu-repo/semantics/altIdentifier/issn/0370-2693 info:eu-repo/semantics/altIdentifier/doi/10.1016/S0370-2693(01)00102-2 |
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openAccess |
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http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
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