| dc.contributor | Universidade Estadual Paulista (UNESP) | |
| dc.creator | Berkovits, Nathan | |
| dc.date | 2014-05-27T11:21:08Z | |
| dc.date | 2016-10-25T18:19:50Z | |
| dc.date | 2014-05-27T11:21:08Z | |
| dc.date | 2016-10-25T18:19:50Z | |
| dc.date | 2004-09-01 | |
| dc.date.accessioned | 2017-04-06T01:10:06Z | |
| dc.date.available | 2017-04-06T01:10:06Z | |
| dc.identifier | Journal of High Energy Physics, v. 8, n. 9, p. 1171-1210, 2004. | |
| dc.identifier | 1029-8479 | |
| dc.identifier | 1126-6708 | |
| dc.identifier | http://hdl.handle.net/11449/67841 | |
| dc.identifier | http://acervodigital.unesp.br/handle/11449/67841 | |
| dc.identifier | 10.1088/1126-6708/2004/09/047 | |
| dc.identifier | WOS:000225279400024 | |
| dc.identifier | 2-s2.0-21444436975 | |
| dc.identifier | http://dx.doi.org/10.1088/1126-6708/2004/09/047 | |
| dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/889248 | |
| dc.description | A ten-dimensional super-Poincaré covariant formalism for the superstring was recently developed which involves a BRST operator constructed from superspace matter variables and a pure spinor ghost variable. A super-Poincaré covariant prescription was defined for computing tree amplitudes and was shown to coincide with the standard RNS prescription. In this paper, picture-changing operators are used to define functional integration over the pure spinor ghosts and and to construct a suitable b ghost. A super-Poincaré covariant prescription is then given for the computation of N-point multiloop amplitudes. One can easily prove that massless N-point multiloop amplitudes vanish for N < 4, confirming the perturbative finiteness of superstring theory. One can also prove the Type IIB S-duality conjecture that R4 terms in the effective action receive no perturbative contributions above one loop. © SISSA/ISAS 2004. | |
| dc.language | eng | |
| dc.relation | Journal of High Energy Physics | |
| dc.rights | info:eu-repo/semantics/closedAccess | |
| dc.subject | BRST Symmetry | |
| dc.subject | Extended Supersymmetry | |
| dc.subject | Superstrings and Heterotic Strings | |
| dc.title | Multiloop amplitudes and vanishing theorems using the pure spinor formalism for the superstring | |
| dc.type | Otro | |
