Data di Pubblicazione:
2023
Citazione:
Evaluation of Feynman integrals with arbitrary complex masses via series expansions / T. Armadillo, R. Bonciani, S. Devoto, N. Rana, A. Vicini. - In: COMPUTER PHYSICS COMMUNICATIONS. - ISSN 0010-4655. - 282:(2023), pp. 108545.1-108545.15. [10.1016/j.cpc.2022.108545]
Abstract:
We present an algorithm to evaluate multiloop Feynman integrals with an arbitrary number of internal massive lines, with the masses being in general complex-valued, and its implementation in theMathematicapackageSeaSyde. The implementation solves by series expansions the system of differential equations satisfied by the Master Integrals. At variance with respect to other existing codes, the analytical continuation of the solution is performed in the complex plane associated to each kinematical invariant. We present the results of the evaluation of the Master Integrals relevant for the NNLO QCD-EW corrections to the neutral-current Drell-Yan processes.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
Multi-loop integrals; Differential equations; Series expansions; Analytic continuation; Electroweak interaction; Quantum chromodynamics
Elenco autori:
T. Armadillo, R. Bonciani, S. Devoto, N. Rana, A. Vicini
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