QCD studies and determination of a<sub>s</sub> in e+e - collisions at √s= 161 GeV and 172 GeV

Autores: Dova, María Teresa; L3 Collaboration
Año de publicación: 1997
Idioma: inglés
Tipo de recurso: artículo
Estado: versión publicada
Descripción: We present a study of the structure of hadronic events recorded by the L3 detector at LEP at the center of mass energies of 161 and 172 GeV. The data sample corresponds to an integrated luminosity of 21.25 pb⁻¹ collected during the high energy runs of 1996. The distributions of event shape variables and the energy dependence of their mean values are well reproduced by QCD models. From a comparison of the data with resummed $O (α_{s}^{2})$ QCD calculations, we determine the strong coupling constant at the two energies. Combining this with our earlier measurements we find that the strong coupling constant decreases with increasing energy as expected in QCD.
Facultad de Ciencias Exactas
Materia: Ciencias Exactas
Física
quantum chromodynamics
la̵rge hadron collider
Partículas Elementales
Nivel de accesibilidad: acceso abierto
Condiciones de uso: http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
Institución: Universidad Nacional de La Plata
OAI Identificador: oai:sedici.unlp.edu.ar:10915/80449

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spelling	QCD studies and determination of a<sub>s</sub> in e+e - collisions at √s= 161 GeV and 172 GeVDova, María TeresaL3 CollaborationCiencias ExactasFísicaquantum chromodynamicsla̵rge hadron colliderPartículas ElementalesWe present a study of the structure of hadronic events recorded by the L3 detector at LEP at the center of mass energies of 161 and 172 GeV. The data sample corresponds to an integrated luminosity of 21.25 pb<sup>−1</sup> collected during the high energy runs of 1996. The distributions of event shape variables and the energy dependence of their mean values are well reproduced by QCD models. From a comparison of the data with resummed <math><mrow is="true"><mi mathvariant="script" is="true">O</mi><mo stretchy="false" is="true">(</mo><msubsup is="true"><mi is="true">α</mi><mo lspace="0.1em" is="true">s</mo><mo is="true">2</mo></msubsup><mo stretchy="false" is="true">)</mo></mrow></math> QCD calculations, we determine the strong coupling constant at the two energies. Combining this with our earlier measurements we find that the strong coupling constant decreases with increasing energy as expected in QCD.Facultad de Ciencias Exactas1997-07-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf390-402http://sedici.unlp.edu.ar/handle/10915/80449enginfo:eu-repo/semantics/altIdentifier/issn/0370-2693info:eu-repo/semantics/altIdentifier/doi/10.1016/S0370-2693(97)00647-3info: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:UNLP2025-09-10T12:17:30Zoai:sedici.unlp.edu.ar:10915/80449Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-10 12:17:30.646SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv	QCD studies and determination of a<sub>s</sub> in e+e - collisions at √s= 161 GeV and 172 GeV
title	QCD studies and determination of a<sub>s</sub> in e+e - collisions at √s= 161 GeV and 172 GeV
spellingShingle	QCD studies and determination of a<sub>s</sub> in e+e - collisions at √s= 161 GeV and 172 GeV Dova, María Teresa Ciencias Exactas Física quantum chromodynamics la̵rge hadron collider Partículas Elementales
title_short	QCD studies and determination of a<sub>s</sub> in e+e - collisions at √s= 161 GeV and 172 GeV
title_full	QCD studies and determination of a<sub>s</sub> in e+e - collisions at √s= 161 GeV and 172 GeV
title_fullStr	QCD studies and determination of a<sub>s</sub> in e+e - collisions at √s= 161 GeV and 172 GeV
title_full_unstemmed	QCD studies and determination of a<sub>s</sub> in e+e - collisions at √s= 161 GeV and 172 GeV
title_sort	QCD studies and determination of a<sub>s</sub> in e+e - collisions at √s= 161 GeV and 172 GeV
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 quantum chromodynamics la̵rge hadron collider Partículas Elementales
topic	Ciencias Exactas Física quantum chromodynamics la̵rge hadron collider Partículas Elementales
dc.description.none.fl_txt_mv	We present a study of the structure of hadronic events recorded by the L3 detector at LEP at the center of mass energies of 161 and 172 GeV. The data sample corresponds to an integrated luminosity of 21.25 pb<sup>−1</sup> collected during the high energy runs of 1996. The distributions of event shape variables and the energy dependence of their mean values are well reproduced by QCD models. From a comparison of the data with resummed <math><mrow is="true"><mi mathvariant="script" is="true">O</mi><mo stretchy="false" is="true">(</mo><msubsup is="true"><mi is="true">α</mi><mo lspace="0.1em" is="true">s</mo><mo is="true">2</mo></msubsup><mo stretchy="false" is="true">)</mo></mrow></math> QCD calculations, we determine the strong coupling constant at the two energies. Combining this with our earlier measurements we find that the strong coupling constant decreases with increasing energy as expected in QCD. Facultad de Ciencias Exactas
description	We present a study of the structure of hadronic events recorded by the L3 detector at LEP at the center of mass energies of 161 and 172 GeV. The data sample corresponds to an integrated luminosity of 21.25 pb<sup>−1</sup> collected during the high energy runs of 1996. The distributions of event shape variables and the energy dependence of their mean values are well reproduced by QCD models. From a comparison of the data with resummed <math><mrow is="true"><mi mathvariant="script" is="true">O</mi><mo stretchy="false" is="true">(</mo><msubsup is="true"><mi is="true">α</mi><mo lspace="0.1em" is="true">s</mo><mo is="true">2</mo></msubsup><mo stretchy="false" is="true">)</mo></mrow></math> QCD calculations, we determine the strong coupling constant at the two energies. Combining this with our earlier measurements we find that the strong coupling constant decreases with increasing energy as expected in QCD.
publishDate	1997
dc.date.none.fl_str_mv	1997-07-10
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/10915/80449
url	http://sedici.unlp.edu.ar/handle/10915/80449
dc.language.none.fl_str_mv	eng
language	eng
dc.relation.none.fl_str_mv	info:eu-repo/semantics/altIdentifier/issn/0370-2693 info:eu-repo/semantics/altIdentifier/doi/10.1016/S0370-2693(97)00647-3
dc.rights.none.fl_str_mv	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)
eu_rights_str_mv	openAccess
rights_invalid_str_mv	http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv	application/pdf 390-402
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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QCD studies and determination of a<sub>s</sub> in e+e - collisions at √s= 161 GeV and 172 GeV

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