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Comments on the evaluation of massless scattering

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Autor(es):
Cardona, Carlos ; Kalousios, Chrysostomos
Número total de Autores: 2
Tipo de documento: Artigo Científico
Fonte: Journal of High Energy Physics; v. N/A, n. 1, p. 14-pg., 2016-01-29.
Resumo

The goal of this work is threefold. First, we give an expression of the most general five point integral on M-0,M-n in terms of Chebyshev polynomials. Second, we choose a special kinematics that transforms the polynomial form of the scattering equations to a linear system of symmetric polynomials. We then explain how this can be used to explicitly evaluate arbitrary point integrals onM(0,n). Third, we comment on the recently presented method of companion matrices and we show its equivalence to the elimination theory and an algorithm previously developed by one of the authors. (AU)

Processo FAPESP: 11/11973-4 - ICTP Instituto Sul-Americano para Pesquisa Fundamental: um centro regional para física teórica
Beneficiário:Nathan Jacob Berkovits
Modalidade de apoio: Auxílio à Pesquisa - Temático
Processo FAPESP: 12/00756-5 - Pesquisa em AdS-CFT correspondence no ICTP South American Institute for Fundamental Research
Beneficiário:Chrysostomos Kalousios
Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado