Next-to-Leading-Order Corrections to Momentum Correlations in $Z^0 \to b\overline{b}$

We recently completed a calculation of the process $e^+e^- \to Q\bar{Q}+X$, where Q is a heavy quark, at order $O(\alpha_s^2)$. As a first application of this calculation we compute the momentum correlations of $b\bar{b}$ pairs at next-to-leading-order. This quantity is interesting since it may affe...

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Detalles Bibliográficos
Autores principales: Nason, P, Oleari, C
Lenguaje:eng
Publicado: 1997
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1016/S0370-2693(97)00721-1
http://cds.cern.ch/record/325790
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author Nason, P
Oleari, C
author_facet Nason, P
Oleari, C
author_sort Nason, P
collection CERN
description We recently completed a calculation of the process $e^+e^- \to Q\bar{Q}+X$, where Q is a heavy quark, at order $O(\alpha_s^2)$. As a first application of this calculation we compute the momentum correlations of $b\bar{b}$ pairs at next-to-leading-order. This quantity is interesting since it may affect the determination of $R_b$ as measured in $Z^0$ decays. We find that the next-to-leading corrections are of moderate size, thus confirming the conclusions that can be drawn from the leading-order calculation.
id cern-325790
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1997
record_format invenio
spelling cern-3257902019-09-30T06:29:59Zdoi:10.1016/S0370-2693(97)00721-1http://cds.cern.ch/record/325790engNason, POleari, CNext-to-Leading-Order Corrections to Momentum Correlations in $Z^0 \to b\overline{b}$Particle Physics - PhenomenologyWe recently completed a calculation of the process $e^+e^- \to Q\bar{Q}+X$, where Q is a heavy quark, at order $O(\alpha_s^2)$. As a first application of this calculation we compute the momentum correlations of $b\bar{b}$ pairs at next-to-leading-order. This quantity is interesting since it may affect the determination of $R_b$ as measured in $Z^0$ decays. We find that the next-to-leading corrections are of moderate size, thus confirming the conclusions that can be drawn from the leading-order calculation.hep-ph/9705295CERN-TH-97-092oai:cds.cern.ch:3257901997-05-13
spellingShingle Particle Physics - Phenomenology
Nason, P
Oleari, C
Next-to-Leading-Order Corrections to Momentum Correlations in $Z^0 \to b\overline{b}$
title Next-to-Leading-Order Corrections to Momentum Correlations in $Z^0 \to b\overline{b}$
title_full Next-to-Leading-Order Corrections to Momentum Correlations in $Z^0 \to b\overline{b}$
title_fullStr Next-to-Leading-Order Corrections to Momentum Correlations in $Z^0 \to b\overline{b}$
title_full_unstemmed Next-to-Leading-Order Corrections to Momentum Correlations in $Z^0 \to b\overline{b}$
title_short Next-to-Leading-Order Corrections to Momentum Correlations in $Z^0 \to b\overline{b}$
title_sort next-to-leading-order corrections to momentum correlations in $z^0 \to b\overline{b}$
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/S0370-2693(97)00721-1
http://cds.cern.ch/record/325790
work_keys_str_mv AT nasonp nexttoleadingordercorrectionstomomentumcorrelationsinz0toboverlineb
AT olearic nexttoleadingordercorrectionstomomentumcorrelationsinz0toboverlineb

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