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Decoupling of unphysical states in the minimal pure spinor formalism II

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Author(s):
Berkovits, Nathan ; Hoogeveen, Joost ; Skenderis, Kostas
Total Authors: 3
Document type: Journal article
Source: Journal of High Energy Physics; v. N/A, n. 9, p. 14-pg., 2009-09-01.
Abstract

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)

FAPESP's process: 04/11426-0 - Research and Instruction in String Theory
Grantee:Nathan Jacob Berkovits
Support Opportunities: Research Projects - Thematic Grants