The leading eikonal operator in string-brane scattering at high energy
Abstract
In this paper we present two (a priori independent) derivations of the eikonal operator in string-brane scattering. The first one is obtained by summing surfaces with any number of boundaries, while in the second one the eikonal operator is derived from the three-string vertex in a suitable light-cone gauge. This second derivation shows that the bosonic oscillators present in the leading eikonal operator are to be identified with the string bosonic oscillators in a suitable light-cone gauge, while the first one shows that it exponentiates recovering unitarity. This paper is a review of results obtained in two previous publications of the same authors.
Cite
@article{arxiv.1310.4478,
title = {The leading eikonal operator in string-brane scattering at high energy},
author = {Giuseppe D'Appollonio and Paolo Di Vecchia and Rodolfo Russo and Gabriele Veneziano},
journal= {arXiv preprint arXiv:1310.4478},
year = {2015}
}
Comments
17 pages, talk given at the conference BUDS2013, Breaking of supersymmetry and Ultraviolet Divergences in extended Supergravities, National Laboratories of Frascati, March 25-28, 2013