Work

The overall coefficient of the two-loop superstring amplitude using pure spinors

Year: 2010

Type: article

Abstract: Using the results recently obtained for computing integrals over (non-minimal) pure spinor superspace, we compute the coefficient of the massless two-loop four-point amplitude from first principles. Contrasting with the mathematical difficulties in the RNS formalism where unknown normalizations of chiral determinant formulæ force the two-loop coefficient to be determined only indirectly through factorization, the computation in the pure spinor formalism can be smoothly carried out.

Source: Journal of High Energy Physics

DOI: 10.1007/jhep05(2010)017

Authors: Humberto Gomez, Carlos R. Mafra

Institutions: Universidade Estadual Paulista (Unesp), Max Planck Society, Max Planck Institute for Gravitational Physics

Language: English

Topic: Black Holes and Theoretical Physics

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid:

Funder: Fundação de Amparo à Pesquisa do Estado de São Paulo