Comments on gluon scattering amplitudes via AdS/CFT

In this article we consider n gluon color ordered, planar amplitudes in = 4 super Yang Mills at strong 't Hooft coupling. These amplitudes are approximated by classical surfaces in AdS 5 space. We compute the value of the amplitude for a particular kinematic configuration for a large number of...

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主要な著者: Alday, L, Maldacena, J
フォーマット: Journal article
言語:English
出版事項: 2007
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author Alday, L
Maldacena, J
author_facet Alday, L
Maldacena, J
author_sort Alday, L
collection OXFORD
description In this article we consider n gluon color ordered, planar amplitudes in = 4 super Yang Mills at strong 't Hooft coupling. These amplitudes are approximated by classical surfaces in AdS 5 space. We compute the value of the amplitude for a particular kinematic configuration for a large number of gluons and find that the result disagrees with a recent guess for the exact value of the amplitude. Our results are still compatible with a possible relation between amplitudes and Wilson loops. In addition, we also give a prescription for computing processes involving local operators and asymptotic states with a fixed number of gluons. As a byproduct, we also obtain a string theory prescription for computing the dual of the ordinary Wilson loop, TrPe iA, with no couplings to the scalars. We also evaluate the quark-antiquark potential at two loops. © SISSA 2007.
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spelling oxford-uuid:8c8ceee4-eead-4599-8abc-67567a38ba872022-03-26T22:45:14ZComments on gluon scattering amplitudes via AdS/CFTJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:8c8ceee4-eead-4599-8abc-67567a38ba87EnglishSymplectic Elements at Oxford2007Alday, LMaldacena, JIn this article we consider n gluon color ordered, planar amplitudes in = 4 super Yang Mills at strong 't Hooft coupling. These amplitudes are approximated by classical surfaces in AdS 5 space. We compute the value of the amplitude for a particular kinematic configuration for a large number of gluons and find that the result disagrees with a recent guess for the exact value of the amplitude. Our results are still compatible with a possible relation between amplitudes and Wilson loops. In addition, we also give a prescription for computing processes involving local operators and asymptotic states with a fixed number of gluons. As a byproduct, we also obtain a string theory prescription for computing the dual of the ordinary Wilson loop, TrPe iA, with no couplings to the scalars. We also evaluate the quark-antiquark potential at two loops. © SISSA 2007.
spellingShingle Alday, L
Maldacena, J
Comments on gluon scattering amplitudes via AdS/CFT
title Comments on gluon scattering amplitudes via AdS/CFT
title_full Comments on gluon scattering amplitudes via AdS/CFT
title_fullStr Comments on gluon scattering amplitudes via AdS/CFT
title_full_unstemmed Comments on gluon scattering amplitudes via AdS/CFT
title_short Comments on gluon scattering amplitudes via AdS/CFT
title_sort comments on gluon scattering amplitudes via ads cft
work_keys_str_mv AT aldayl commentsongluonscatteringamplitudesviaadscft
AT maldacenaj commentsongluonscatteringamplitudesviaadscft