Superstring measure and non-renormalization of the three-point amplitude
| dc.creator | Matone, Marco | |
| dc.creator | Volpato, Roberto | |
| dc.date | 2008-06-26 | |
| dc.date | 2008-08-29 | |
| dc.date.accessioned | 2026-07-07T11:52:03Z | |
| dc.date.available | 2026-07-07T11:52:03Z | |
| dc.description | We show that a recently conjectured expression for the superstring three-point amplitude, in the framework of the Cacciatori, Dalla Piazza, van Geemen - Grushevsky ansatz for the chiral measure, fails to vanish at three-loop, in contrast with expectations from non-renormalization theorems. Based on analogous two-loop computations, we discuss the possibility of a non-trivial correction to the amplitude and propose a natural candidate for such a contribution. Thanks to a new remarkable identity, it is reasonable to expect that the corrected three-point amplitude vanishes at three-loop, recovering the agreement with non-renormalization theorems. | |
| dc.description | 14 pages; minor corrections, some comments added. Accepted for publication in Nucl.Phys.B | |
| dc.identifier | https://arxiv.org/abs/0806.4370 | |
| dc.identifier | http://arxiv.org/abs/0806.4370 | |
| dc.identifier | Nucl.Phys.B806:735-747,2009 | |
| dc.identifier | doi:10.1016/j.nuclphysb.2008.08.011 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/204100 | |
| dc.subject | High Energy Physics - Theory | |
| dc.subject | Algebraic Geometry | |
| dc.title | Superstring measure and non-renormalization of the three-point amplitude | |
| dc.type | text |