Scattering equations, generating functions and all massless five point tree amplitudes

Autor(es)

Kalosios, Chrysostomos ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Paulista, UNESP, ICTP South Amer Inst Fundamental Res, Inst Fis Teor, BR-01140070 Sao Paulo, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Journal of High Energy Physics; n. 5 MAY 11 2015.
• Citações Web of Science: 28

Resumo

We argue that one does not need to know the explicit solutions of the scattering equations in order to evaluate a given amplitude. We consider the most general quantity consistent with SL(2,C) invariance that can appear in an amplitude that admits a scattering equation description. This quantity depends on all cross ratios that can be formed from n points and we evaluate it for the first non-trivial case of n = 5. The combinatorial nature of the problem is captured through the construction of an appropriate generating function that depends on five variables. (AU)

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