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A planar four-loop form factor and cusp anomalous dimension in QCD
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نویسنده
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Henn Johannes M. ,Smirnov Alexander V. ,Smirnov Vladimir A. ,Steinhauser Matthias
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منبع
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journal of high energy physics - 2016 - دوره : 2016 - شماره : 5 - صفحه:1 -17
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چکیده
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We compute the fermionic contribution to the photon-quark form factor to four-loop order in qcd in the planar limit in analytic form. from the divergent part of the latter the cusp and collinear anomalous dimensions are extracted. results are also presented for the finite contribution. we briefly describe our method to compute all planar master integrals at four-loop order.
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کلیدواژه
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Perturbative QCD ,Scattering Amplitudes
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آدرس
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Johannes Gutenberg University, Germany, Moscow State University, Russia, Skobeltsyn Institute of Nuclear Physics of Moscow State University, Russia, Karlsruhe Institute of Technology (KIT), Germany
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Authors
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