Non-factorizable corrections to W-pair production

In this paper we study the non-factorizable QED corrections to W-pair-mediated (charged-current) four-fermion production in electron-positron collisions. A brief account of the obtained analytical results is given. They turn out to be different from the ones published in the literature. For the firs...

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Detalles Bibliográficos
Autores principales: Beenakker, W., Chapovsky, A.P., Berends, Frits A.
Lenguaje:eng
Publicado: 1997
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1016/S0370-2693(97)01010-1
http://cds.cern.ch/record/328799
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author Beenakker, W.
Chapovsky, A.P.
Berends, Frits A.
author_facet Beenakker, W.
Chapovsky, A.P.
Berends, Frits A.
author_sort Beenakker, W.
collection CERN
description In this paper we study the non-factorizable QED corrections to W-pair-mediated (charged-current) four-fermion production in electron-positron collisions. A brief account of the obtained analytical results is given. They turn out to be different from the ones published in the literature. For the first time numerical results are presented, in particular the effects on the W line-shape. These effects are of the order of a per cent. Applying the same methods to ZZ- or ZH-mediated four-fermion production, the non-factorizable $O(\alpha)$ corrections to the Z or H line-shape vanish.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1997
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spelling cern-3287992023-03-14T20:11:26Zdoi:10.1016/S0370-2693(97)01010-1http://cds.cern.ch/record/328799engBeenakker, W.Chapovsky, A.P.Berends, Frits A.Non-factorizable corrections to W-pair productionParticle Physics - PhenomenologyIn this paper we study the non-factorizable QED corrections to W-pair-mediated (charged-current) four-fermion production in electron-positron collisions. A brief account of the obtained analytical results is given. They turn out to be different from the ones published in the literature. For the first time numerical results are presented, in particular the effects on the W line-shape. These effects are of the order of a per cent. Applying the same methods to ZZ- or ZH-mediated four-fermion production, the non-factorizable $O(\alpha)$ corrections to the Z or H line-shape vanish.In this paper we study the non-factorizable QED corrections to W-pair-mediated (charged-current) four-fermion production in electron-positron collisions. A brief account of the obtained analytical results is given. They turn out to be different from the ones published in the literature. For the first time numerical results are presented, in particular the effects on the W line-shape. These effects are of the order of a per cent. Applying the same methods to ZZ- or ZH-mediated four-fermion production, the non-factorizable $O(\alpha)$ corrections to the Z or H line-shape vanish.In this paper we study the non-factorizable QED corrections to W -pair-mediated (charged-current) four-fermion production in electron-positron collisions. A brief account of the obtained analytical results is given. They turn out to be different from the ones published in the literature. Numerical results are presented, in particular the effects on the W line-shape. These effects are of the order of a per cent. The validity of the presented calculations starts a few widths above the W -pair threshold. Applying the same methods to ZZ - or ZH -mediated four-fermion production, the non-factorizable O (α) corrections to the Z or H line-shape vanish.hep-ph/9706339CERN-TH-97-114CERN-TH-97-114oai:cds.cern.ch:3287991997-06-27
spellingShingle Particle Physics - Phenomenology
Beenakker, W.
Chapovsky, A.P.
Berends, Frits A.
Non-factorizable corrections to W-pair production
title Non-factorizable corrections to W-pair production
title_full Non-factorizable corrections to W-pair production
title_fullStr Non-factorizable corrections to W-pair production
title_full_unstemmed Non-factorizable corrections to W-pair production
title_short Non-factorizable corrections to W-pair production
title_sort non-factorizable corrections to w-pair production
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/S0370-2693(97)01010-1
http://cds.cern.ch/record/328799
work_keys_str_mv AT beenakkerw nonfactorizablecorrectionstowpairproduction
AT chapovskyap nonfactorizablecorrectionstowpairproduction
AT berendsfritsa nonfactorizablecorrectionstowpairproduction

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