Study of hadronic events and measurements of αs between 30 and 91 GeV

We have studied the structure of hadronic events with a hard, isolated photon in the final state (e+e− → Z → hadrons + γ) in the 3.6 million hadronic events collected with the L3 detector at centre-of-mass energies around 91 GeV. The centre-of-mass energy of the hadronic system is in the range 30 Ge...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Dova, María Teresa, L3 Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 1997
Materias:
Ciencias Exactas
Física
hadronic events
L3 detector
isolated photon
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/77882
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-77882
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
hadronic events
L3 detector
isolated photon
spellingShingle Ciencias Exactas
Física
hadronic events
L3 detector
isolated photon
Dova, María Teresa
L3 Collaboration
Study of hadronic events and measurements of αs between 30 and 91 GeV
topic_facet Ciencias Exactas
Física
hadronic events
L3 detector
isolated photon
description We have studied the structure of hadronic events with a hard, isolated photon in the final state (e+e− → Z → hadrons + γ) in the 3.6 million hadronic events collected with the L3 detector at centre-of-mass energies around 91 GeV. The centre-of-mass energy of the hadronic system is in the range 30 GeV to 86 GeV. Event shape variables have been measured at these reduced centre-of-mass energies and have been compared with the predictions of different QCD Monte Carlo programs. The event shape variables and the energy dependence of their mean values are well reproduced by QCD models. We fit distributions of several global event shape variables to resummed O(αs2) calculations to determine the strong coupling constant αs over a wide range of energies. We find that the strong coupling constant αs decreases with increasing energy, as expected from QCD.
format Articulo
Articulo
author Dova, María Teresa
L3 Collaboration
author_facet Dova, María Teresa
L3 Collaboration
author_sort Dova, María Teresa
title Study of hadronic events and measurements of αs between 30 and 91 GeV
title_short Study of hadronic events and measurements of αs between 30 and 91 GeV
title_full Study of hadronic events and measurements of αs between 30 and 91 GeV
title_fullStr Study of hadronic events and measurements of αs between 30 and 91 GeV
title_full_unstemmed Study of hadronic events and measurements of αs between 30 and 91 GeV
title_sort study of hadronic events and measurements of αs between 30 and 91 gev
publishDate 1997
url http://sedici.unlp.edu.ar/handle/10915/77882
work_keys_str_mv AT dovamariateresa studyofhadroniceventsandmeasurementsofasbetween30and91gev
AT l3collaboration studyofhadroniceventsandmeasurementsofasbetween30and91gev
bdutipo_str Repositorios
_version_ 1764820485164498945

Ejemplares similares