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Landau singularities and symbology: one- and two-loop MHV amplitudes in SYM theory
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نویسنده
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Dennen Tristan ,Spradlin Marcus ,Volovich Anastasia
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منبع
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journal of high energy physics - 2016 - دوره : 2016 - شماره : 3 - صفحه:1 -19
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چکیده
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We apply the landau equations, whose solutions parameterize the locus of possible branch points, to the one- and two-loop feynman integrals relevant to mhv amplitudes in planar $$ mathcal{n}=4 $$ super-yang-mills theory. we then identify which of the landau singularities appear in the symbols of the amplitudes, and which do not. we observe that all of the symbol entries in the two-loop mhv amplitudes are already present as landau singularities of one-loop pentagon integrals.
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کلیدواژه
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Scattering Amplitudes ,Supersymmetric gauge theory
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آدرس
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Brown University, Department of Physics, USA, Brown University, Department of Physics, USA, Brown University, Department of Physics, USA
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Authors
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