Cargando…

The back-to-back region in $e^+ e^-$ energy-energy correlation

We consider the back-to-back region in the energy--energy correlation in e^+e^- collisions. We present the explicit expression of the O(as^2) logarithmically enhanced contributions up to next-to-next-to-leading logarithmic accuracy. We study the impact of the results in a detailed comparison with pr...

Descripción completa

Detalles Bibliográficos
Autores principales: de Florian, D, Grazzini, M
Lenguaje:eng
Publicado: 2004
Materias:
Acceso en línea:https://dx.doi.org/10.1016/j.nuclphysb.2004.10.051
http://cds.cern.ch/record/779512
_version_ 1780904331866800128
author de Florian, D
Grazzini, M
author_facet de Florian, D
Grazzini, M
author_sort de Florian, D
collection CERN
description We consider the back-to-back region in the energy--energy correlation in e^+e^- collisions. We present the explicit expression of the O(as^2) logarithmically enhanced contributions up to next-to-next-to-leading logarithmic accuracy. We study the impact of the results in a detailed comparison with precise LEP and SLC data. We find that, when hadronization effects are taken into account as is customarily done in QCD analysis in e^+e^- annihilations, the extracted value of as(M_Z) is in good agreement with the current world average.
id cern-779512
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2004
record_format invenio
spelling cern-7795122019-09-30T06:29:59Zdoi:10.1016/j.nuclphysb.2004.10.051http://cds.cern.ch/record/779512engde Florian, DGrazzini, MThe back-to-back region in $e^+ e^-$ energy-energy correlationParticle Physics - PhenomenologyWe consider the back-to-back region in the energy--energy correlation in e^+e^- collisions. We present the explicit expression of the O(as^2) logarithmically enhanced contributions up to next-to-next-to-leading logarithmic accuracy. We study the impact of the results in a detailed comparison with precise LEP and SLC data. We find that, when hadronization effects are taken into account as is customarily done in QCD analysis in e^+e^- annihilations, the extracted value of as(M_Z) is in good agreement with the current world average.hep-ph/0407241CERN-PH-TH-2004-137oai:cds.cern.ch:7795122004-07-21
spellingShingle Particle Physics - Phenomenology
de Florian, D
Grazzini, M
The back-to-back region in $e^+ e^-$ energy-energy correlation
title The back-to-back region in $e^+ e^-$ energy-energy correlation
title_full The back-to-back region in $e^+ e^-$ energy-energy correlation
title_fullStr The back-to-back region in $e^+ e^-$ energy-energy correlation
title_full_unstemmed The back-to-back region in $e^+ e^-$ energy-energy correlation
title_short The back-to-back region in $e^+ e^-$ energy-energy correlation
title_sort back-to-back region in $e^+ e^-$ energy-energy correlation
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/j.nuclphysb.2004.10.051
http://cds.cern.ch/record/779512
work_keys_str_mv AT defloriand thebacktobackregionineeenergyenergycorrelation
AT grazzinim thebacktobackregionineeenergyenergycorrelation
AT defloriand backtobackregionineeenergyenergycorrelation
AT grazzinim backtobackregionineeenergyenergycorrelation