Two-Loop Four-Gluon Amplitudes from Numerical Unitarity.
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DOI: 10.1103/physrevlett.119.142001
Abstract: We present the first numerical computation of two-loop amplitudes based on the unitarity method. As a proof of principle, we compute the four-gluon process in the leading-color approximation. We discuss the new method, analyze its… read more here.
Keywords: four gluon; two loop; gluon amplitudes; loop four ... See more keywords
Full-Color Two-Loop Four-Gluon Amplitude in N=2 Supersymmetric QCD.
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DOI: 10.1103/physrevlett.123.241601
Abstract: We present the fully integrated form of the two-loop four-gluon amplitude in N=2 supersymmetric quantum chromodynamics with gauge group SU(N_{c}) and with N_{f} massless supersymmetric quarks (hypermultiplets) in the fundamental representation. Our result maintains full… read more here.
Keywords: four gluon; gluon amplitude; two loop; amplitude supersymmetric ... See more keywords