Inclusive J, ψ′ and χ production in hadronic Z decays
- Autores
- Dova, María Teresa; L3 Collaboration
- Año de publicación
- 1997
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We report on measurements of the inclusive production of J, Ψ′ and χc mesons in hadronic Z decays, based on 3.2 million hadronic events collected using the L3 detector at LEP. The J and Ψ′ mesons are reconstructed through their decays into lepton pairs, while the χc mesons are reconstructed via the decay mode χc → J + γ. The measured branching fractions are: Br(Z → J + X) = (3.40 ± 0.23 (stat.) ± 0.27 (sys.)) × 10−3, Br(Z → Ψ′ + X) = (1.6 ± 0.5 (stat.) ± 0.3 (sys.)) × 10−3, Br(Z → χc1 + X) = (2.7 ± 0.6 (stat.) ± 0.5 (sys.)) × 10−3. In the absence of a clear χc2 signal, the upper limit at 90% C.L. is set: Br(Z → χc2 + X) < 3.2 × 10−3.
La lista completa de autores puede verse en el archivo asociado.
Facultad de Ciencias Exactas - Materia
-
Física
Charmonium production
Hadronic Z decays
Branching fractions - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-nd/4.0/
- Repositorio
.jpg)
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/195316
Ver los metadatos del registro completo
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Inclusive J, ψ′ and χ production in hadronic Z decaysDova, María TeresaL3 CollaborationFísicaCharmonium productionHadronic Z decaysBranching fractionsWe report on measurements of the inclusive production of J, Ψ′ and χc mesons in hadronic Z decays, based on 3.2 million hadronic events collected using the L3 detector at LEP. The J and Ψ′ mesons are reconstructed through their decays into lepton pairs, while the χc mesons are reconstructed via the decay mode χc → J + γ. The measured branching fractions are: Br(Z → J + X) = (3.40 ± 0.23 (stat.) ± 0.27 (sys.)) × 10−3, Br(Z → Ψ′ + X) = (1.6 ± 0.5 (stat.) ± 0.3 (sys.)) × 10−3, Br(Z → χc1 + X) = (2.7 ± 0.6 (stat.) ± 0.5 (sys.)) × 10−3. In the absence of a clear χc2 signal, the upper limit at 90% C.L. is set: Br(Z → χc2 + X) < 3.2 × 10−3.La lista completa de autores puede verse en el archivo asociado.Facultad de Ciencias Exactas1997info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf351-360http://sedici.unlp.edu.ar/handle/10915/195316enginfo:eu-repo/semantics/altIdentifier/issn/0370-2693info:eu-repo/semantics/altIdentifier/doi/10.1016/s0370-2693(97)00790-9info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2026-06-23T11:17:01Zoai:sedici.unlp.edu.ar:10915/195316Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292026-06-23 11:17:01.735SEDICI (UNLP) - Universidad Nacional de La Platafalse |
| dc.title.none.fl_str_mv |
Inclusive J, ψ′ and χ production in hadronic Z decays |
| title |
Inclusive J, ψ′ and χ production in hadronic Z decays |
| spellingShingle |
Inclusive J, ψ′ and χ production in hadronic Z decays Dova, María Teresa Física Charmonium production Hadronic Z decays Branching fractions |
| title_short |
Inclusive J, ψ′ and χ production in hadronic Z decays |
| title_full |
Inclusive J, ψ′ and χ production in hadronic Z decays |
| title_fullStr |
Inclusive J, ψ′ and χ production in hadronic Z decays |
| title_full_unstemmed |
Inclusive J, ψ′ and χ production in hadronic Z decays |
| title_sort |
Inclusive J, ψ′ and χ production in hadronic Z decays |
| 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 |
Física Charmonium production Hadronic Z decays Branching fractions |
| topic |
Física Charmonium production Hadronic Z decays Branching fractions |
| dc.description.none.fl_txt_mv |
We report on measurements of the inclusive production of J, Ψ′ and χc mesons in hadronic Z decays, based on 3.2 million hadronic events collected using the L3 detector at LEP. The J and Ψ′ mesons are reconstructed through their decays into lepton pairs, while the χc mesons are reconstructed via the decay mode χc → J + γ. The measured branching fractions are: Br(Z → J + X) = (3.40 ± 0.23 (stat.) ± 0.27 (sys.)) × 10−3, Br(Z → Ψ′ + X) = (1.6 ± 0.5 (stat.) ± 0.3 (sys.)) × 10−3, Br(Z → χc1 + X) = (2.7 ± 0.6 (stat.) ± 0.5 (sys.)) × 10−3. In the absence of a clear χc2 signal, the upper limit at 90% C.L. is set: Br(Z → χc2 + X) < 3.2 × 10−3. La lista completa de autores puede verse en el archivo asociado. Facultad de Ciencias Exactas |
| description |
We report on measurements of the inclusive production of J, Ψ′ and χc mesons in hadronic Z decays, based on 3.2 million hadronic events collected using the L3 detector at LEP. The J and Ψ′ mesons are reconstructed through their decays into lepton pairs, while the χc mesons are reconstructed via the decay mode χc → J + γ. The measured branching fractions are: Br(Z → J + X) = (3.40 ± 0.23 (stat.) ± 0.27 (sys.)) × 10−3, Br(Z → Ψ′ + X) = (1.6 ± 0.5 (stat.) ± 0.3 (sys.)) × 10−3, Br(Z → χc1 + X) = (2.7 ± 0.6 (stat.) ± 0.5 (sys.)) × 10−3. In the absence of a clear χc2 signal, the upper limit at 90% C.L. is set: Br(Z → χc2 + X) < 3.2 × 10−3. |
| publishDate |
1997 |
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1997 |
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publishedVersion |
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http://sedici.unlp.edu.ar/handle/10915/195316 |
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eng |
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eng |
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