Double-tag events in two-photon collisions at LEP
- Autores
- Dova, María Teresa; L3 Collaboration
- Año de publicación
- 2002
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Double-tag events in two-photon collisions are studied using the L3 detector at LEP centre-of-mass energies from √s = 189 GeV to 209 GeV. The cross sections of the e+e− → e+e−hadrons and γ ∗γ ∗ → hadrons processes are measured as a function of the product of the photon virtualities, Q2 = Q2 1Q2 2, of the two-photon mass, Wγ γ , and of the variable Y = ln(W2 γ γ /Q2). The average photon virtuality is Q2 1=Q2 2 = 16 GeV2. The results are in agreement with next-to-leading order calculations for the process γ ∗γ ∗ → qq in the interval 2 ̄ Y 5. An excess is observed in the interval 5 < Y 7, corresponding to Wγ γ greater than 40 GeV. This may be interpreted as a contribution of resolved photon QCD processes or the onset of BFKL phenomena.
Facultad de Ciencias Exactas - Materia
-
Ciencias Exactas
Double-tag events
two-photon collisions
LEP
Física - 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:10915/76432
Ver los metadatos del registro completo
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Double-tag events in two-photon collisions at LEPDova, María TeresaL3 CollaborationCiencias ExactasDouble-tag eventstwo-photon collisionsLEPFísicaDouble-tag events in two-photon collisions are studied using the L3 detector at LEP centre-of-mass energies from √s = 189 GeV to 209 GeV. The cross sections of the e+e− → e+e−hadrons and γ ∗γ ∗ → hadrons processes are measured as a function of the product of the photon virtualities, Q2 = Q2 1Q2 2, of the two-photon mass, Wγ γ , and of the variable Y = ln(W2 γ γ /Q2). The average photon virtuality is Q2 1=Q2 2 = 16 GeV2. The results are in agreement with next-to-leading order calculations for the process γ ∗γ ∗ → qq in the interval 2 ̄ Y 5. An excess is observed in the interval 5 < Y 7, corresponding to Wγ γ greater than 40 GeV. This may be interpreted as a contribution of resolved photon QCD processes or the onset of BFKL phenomena.Facultad de Ciencias Exactas2002-02-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf39-51http://sedici.unlp.edu.ar/handle/10915/76432enginfo:eu-repo/semantics/altIdentifier/issn/0370-2693info:eu-repo/semantics/altIdentifier/doi/10.1016/S0370-2693(02)01340-0info: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:UNLP2025-09-29T11:12:16Zoai:sedici.unlp.edu.ar:10915/76432Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:12:17.084SEDICI (UNLP) - Universidad Nacional de La Platafalse |
| dc.title.none.fl_str_mv |
Double-tag events in two-photon collisions at LEP |
| title |
Double-tag events in two-photon collisions at LEP |
| spellingShingle |
Double-tag events in two-photon collisions at LEP Dova, María Teresa Ciencias Exactas Double-tag events two-photon collisions LEP Física |
| title_short |
Double-tag events in two-photon collisions at LEP |
| title_full |
Double-tag events in two-photon collisions at LEP |
| title_fullStr |
Double-tag events in two-photon collisions at LEP |
| title_full_unstemmed |
Double-tag events in two-photon collisions at LEP |
| title_sort |
Double-tag events in two-photon 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 Double-tag events two-photon collisions LEP Física |
| topic |
Ciencias Exactas Double-tag events two-photon collisions LEP Física |
| dc.description.none.fl_txt_mv |
Double-tag events in two-photon collisions are studied using the L3 detector at LEP centre-of-mass energies from √s = 189 GeV to 209 GeV. The cross sections of the e+e− → e+e−hadrons and γ ∗γ ∗ → hadrons processes are measured as a function of the product of the photon virtualities, Q2 = Q2 1Q2 2, of the two-photon mass, Wγ γ , and of the variable Y = ln(W2 γ γ /Q2). The average photon virtuality is Q2 1=Q2 2 = 16 GeV2. The results are in agreement with next-to-leading order calculations for the process γ ∗γ ∗ → qq in the interval 2 ̄ Y 5. An excess is observed in the interval 5 < Y 7, corresponding to Wγ γ greater than 40 GeV. This may be interpreted as a contribution of resolved photon QCD processes or the onset of BFKL phenomena. Facultad de Ciencias Exactas |
| description |
Double-tag events in two-photon collisions are studied using the L3 detector at LEP centre-of-mass energies from √s = 189 GeV to 209 GeV. The cross sections of the e+e− → e+e−hadrons and γ ∗γ ∗ → hadrons processes are measured as a function of the product of the photon virtualities, Q2 = Q2 1Q2 2, of the two-photon mass, Wγ γ , and of the variable Y = ln(W2 γ γ /Q2). The average photon virtuality is Q2 1=Q2 2 = 16 GeV2. The results are in agreement with next-to-leading order calculations for the process γ ∗γ ∗ → qq in the interval 2 ̄ Y 5. An excess is observed in the interval 5 < Y 7, corresponding to Wγ γ greater than 40 GeV. This may be interpreted as a contribution of resolved photon QCD processes or the onset of BFKL phenomena. |
| publishDate |
2002 |
| dc.date.none.fl_str_mv |
2002-02-07 |
| 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 |
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article |
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publishedVersion |
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http://sedici.unlp.edu.ar/handle/10915/76432 |
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http://sedici.unlp.edu.ar/handle/10915/76432 |
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eng |
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eng |
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info:eu-repo/semantics/openAccess 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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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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