Decoupling of unphysical states in the minimal pure spinor formalism II
| Autor: | Berkovits, Nathan, Hoogeveen, Joost, Skenderis, Kostas |
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| Rok vydání: | 2009 |
| Předmět: | |
| Zdroj: | JHEP 0909:035,2009 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1088/1126-6708/2009/09/035 |
| Popis: | 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. Comment: 16 pages, corrected typo's |
| Databáze: | arXiv |
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