Free string theory on the plane-wave background displays a discrete Z(2) symmetry exchanging the two transverse SO(4) groups. This symmetry should be respected also at the interacting level. We show that the zero mode structure proposed in hep-th/0208148 can be completed to a full kinematical vertex, contrary to claims appeared in the previous literature. We also comment on the relation with recent works on the string-bit formalism and on the comparison with the field theory side of the correspondence.
|Titolo:||String interactions and discrete symmetries of the pp-wave background.|
|Autori:||Chu C.S.; Petrini M.; Russo R.; Tanzini A|
|Digital Object Identifier (DOI):||10.1002/prop.200310083|
|Data di pubblicazione:||2003|
|Appare nelle tipologie:||4.1 Contribution in Conference proceedings|