New techniques for one-loop scattering amplitudes

Ossola, G. (2009) New techniques for one-loop scattering amplitudes. Il nuovo cimento C, 32 (3\4). pp. 107-112. ISSN 1826-9885

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We review the main features of the Ossola, Papadopoulos and Pittau (OPP) method for the evaluation of one-loop amplitudes of arbitrary scattering processes. In this approach, the coefficients of the scalar integrals are extracted by means of simple algebraic equations constructed by numerically evaluating the numerator of the integrand for specific choices of the integration momentum. After a discussion of the first results obtained with this method, we will focus on the latest developments in the direction of a fully automatized approach to multi-loop NLO calculation.

Item Type: Article
Uncontrolled Keywords: Field theory ; Perturbative calculations ; Inelastic scattering: many-particle final states
Subjects: 500 Scienze naturali e Matematica > 530 Fisica
Depositing User: Marina Spanti
Date Deposited: 25 Mar 2020 17:23
Last Modified: 25 Mar 2020 17:23

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