A Simple Born-Form Approximation for $e^{+} e^{-}\rightarrow W^{+}W^{-}$ at One Loop

A simple Born-form approximation at the one-loop level for e^+e^- to W^+ W^- at high energies is given in analytic form. The different contributions to the three invariant one-loop amplitudes, S_I^{(-)}(s,t) and S_Q^{(\pm)}(s,t), determining the Born-form helicity amplitudes are thoroughly investiga...

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Detalles Bibliográficos
Autores principales: Kuroda, M., Schildknecht, D.
Lenguaje:eng
Publicado: 1998
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1016/S0550-3213(98)00595-1
https://dx.doi.org/10.1016/S0550-3213(99)00730-0
http://cds.cern.ch/record/359094
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author Kuroda, M.
Schildknecht, D.
author_facet Kuroda, M.
Schildknecht, D.
author_sort Kuroda, M.
collection CERN
description A simple Born-form approximation at the one-loop level for e^+e^- to W^+ W^- at high energies is given in analytic form. The different contributions to the three invariant one-loop amplitudes, S_I^{(-)}(s,t) and S_Q^{(\pm)}(s,t), determining the Born-form helicity amplitudes are thoroughly investigated analytically and numerically. At energies above 500 GeV, the accuracy of the simple Born-form approximation for the differential production cross section is better than 1% for almost all W^+W^- production angles, independently of whether the W^+W^- polarization is summed over, or whether a longitudinal or a transverse polarization is selected for both the W^+ and the W^-.
id cern-359094
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1998
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spelling cern-3590942023-03-14T17:10:51Zdoi:10.1016/S0550-3213(98)00595-1doi:10.1016/S0550-3213(99)00730-0http://cds.cern.ch/record/359094engKuroda, M.Schildknecht, D.A Simple Born-Form Approximation for $e^{+} e^{-}\rightarrow W^{+}W^{-}$ at One LoopParticle Physics - PhenomenologyA simple Born-form approximation at the one-loop level for e^+e^- to W^+ W^- at high energies is given in analytic form. The different contributions to the three invariant one-loop amplitudes, S_I^{(-)}(s,t) and S_Q^{(\pm)}(s,t), determining the Born-form helicity amplitudes are thoroughly investigated analytically and numerically. At energies above 500 GeV, the accuracy of the simple Born-form approximation for the differential production cross section is better than 1% for almost all W^+W^- production angles, independently of whether the W^+W^- polarization is summed over, or whether a longitudinal or a transverse polarization is selected for both the W^+ and the W^-.A simple Born-form approximation at the one-loop level for e^+e^- to W^+ W^- at high energies is given in analytic form. The different contributions to the three invariant one-loop amplitudes, S_I^{(-)}(s,t) and S_Q^{(\pm)}(s,t), determining the Born-form helicity amplitudes are thoroughly investigated analytically and numerically. At energies above 500 GeV, the accuracy of the simple Born-form approximation for the differential production cross section is better than 1% for almost all W^+W^- production angles, independently of whether the W^+W^- polarization is summed over, or whether a longitudinal or a transverse polarization is selected for both the W^+ and the W^-.A simple Born-form approximation at the one-loop level for e + e − → W + W − at high energies is given in analytic form. The different contributions to the three invariant one-loop amplitudes, S I (−) ( s , t ) and S Q (±) ( s , t ), determining the Born-form helicity amplitudes are thoroughly investigated analytically and numerically. At energies above 500 GeV, the accuracy of the simple Born-form approximation for the differential production cross section is better than 1% for almost all W + W − production angles, independently of whether the W + W − polarization is summed over, or whether a longitudinal or a transverse polarization is selected for both the W + and the W − .hep-ph/9807250CERN-TH-98-172BI-TP-98-13CERN-TH-98-172BI-TP-98-13oai:cds.cern.ch:3590941998-07-07
spellingShingle Particle Physics - Phenomenology
Kuroda, M.
Schildknecht, D.
A Simple Born-Form Approximation for $e^{+} e^{-}\rightarrow W^{+}W^{-}$ at One Loop
title A Simple Born-Form Approximation for $e^{+} e^{-}\rightarrow W^{+}W^{-}$ at One Loop
title_full A Simple Born-Form Approximation for $e^{+} e^{-}\rightarrow W^{+}W^{-}$ at One Loop
title_fullStr A Simple Born-Form Approximation for $e^{+} e^{-}\rightarrow W^{+}W^{-}$ at One Loop
title_full_unstemmed A Simple Born-Form Approximation for $e^{+} e^{-}\rightarrow W^{+}W^{-}$ at One Loop
title_short A Simple Born-Form Approximation for $e^{+} e^{-}\rightarrow W^{+}W^{-}$ at One Loop
title_sort simple born-form approximation for $e^{+} e^{-}\rightarrow w^{+}w^{-}$ at one loop
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/S0550-3213(98)00595-1
https://dx.doi.org/10.1016/S0550-3213(99)00730-0
http://cds.cern.ch/record/359094
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AT schildknechtd asimplebornformapproximationforeerightarrowwwatoneloop
AT kurodam simplebornformapproximationforeerightarrowwwatoneloop
AT schildknechtd simplebornformapproximationforeerightarrowwwatoneloop

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