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Showing 1 to 4 of 4 for “"Integration-by-parts identities"”.
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On Different Parametrizations of Feynman Integrals
… structures of Feynman integrals.</p> <p>We start by presenting phenomenological calculations relevant for the experimental analyses at the Large Hadron Collider. We use the resummation of soft gluon emission corrections to study the associated production of a top pair and a Z boson to …
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Vorwärts-Rückwärts-Asymmetrie bei massiven Quark-Jets
… integrals are evaluated with the help of integration-by-parts identities, Lorentz-invariance identities and the Laporta-algorithm. The renormalization of the ultraviolett divergencies is done in a hybrid renormalization scheme: the renormalization of the QCD coupling constant and of the …
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Quantum Chromodynamics and the Precision Phenomenology of Heavy Quarks
… the problem of the solution of a system of integration-by-parts identities for Feynman integrals and demonstrate how some current difficulties may be overcome. We consider also the properties of the top quark, and present the NNLO, real-virtual contributions to the calculation of its decay …
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Higher-Order Calculations in Quantum Chromodynamics
… we introduce a novel strategy for solving integration-by-parts (IBP) identities, which are widely used in the computation of multi-loop QCD amplitudes. We implement the strategy in an efficient C++ program and hence solve the IBP identities needed for the computation of any planar 2-loop …