Decoupling of unphysical states in the minimal pure spinor formalism II

Autor(es)

Berkovits, Nathan ; Hoogeveen, Joost ; Skenderis, Kostas

• Tipo de documento: Artigo Científico
• Fonte: Journal of High Energy Physics; v. N/A, n. 9, p. 14-pg., 2009-09-01.

Resumo

This is the second of a series of two papers where decoupling of unphysical states in the minimal pure spinor formalism is investigated. The multi-loop amplitude prescription for the minimal pure spinor superstring formulated in hep-th/0406055 involves the insertion of picture changing operators in the path integral. In the first paper it was shown that these operators are not BRST closed inside correlators. Therefore a new proof of decoupling of BRST exact states is needed. In this paper we present such a proof, which applies to arbitrary genus. It relies in part on a (previously unnoticed) invariance of the path integral measure. (AU)

• Processo FAPESP: 04/11426-0 - Pesquisa e ensino em teoria de cordas
• Beneficiário: Nathan Jacob Berkovits
• Modalidade de apoio: Auxílio à Pesquisa - Temático