Twistor and polytope interpretations for subleading color one-loop amplitudes

Nastase, Horatiu; Schnitzer, Howard J.

Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/24337

Title:

Twistor and polytope interpretations for subleading color one-loop amplitudes

Author(s):

Institution:

Universidade Estadual Paulista (UNESP)
Brandeis Univ

ISSN:

0550-3213

Sponsorship:

DOE
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Sponsorship Process Number:

DOE: DE-FG02-92ER40706
CNPq: 301219/2010-9

Abstract:

We use the relation of the one-loop subleading-color amplitudes to the one-loop n-point leading color amplitudes in N = 4 SYM, to derive a polytope interpretation for the former in the MHV case, and a representation in momentum twistor space for the general N(k) MHV case. These techniques are explored in detail for the 5-point and 6-point amplitudes. We briefly discuss the implications for IR divergences. (C) 2011 Elsevier B.V. All rights reserved.

Issue Date:

21-Feb-2012

Citation:

Nuclear Physics B. Amsterdam: Elsevier B.V., v. 855, n. 3, p. 901-926, 2012.

Time Duration:

901-926

Publisher:

Elsevier B.V.

Source:

http://dx.doi.org/10.1016/j.nuclphysb.2011.10.029

URI:

Access Rights:

Acesso restrito

Type:

outro

Source:

http://repositorio.unesp.br/handle/11449/24337

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