Comments on open string with "massive" boundary term
High Energy Physics - Theory
2020-11-12 v2
Abstract
We make some remarks on possible definition of open string path integral in the presence of additional boundary couplings corresponding to the presence of masses at the ends of the string. These couplings are not conformally invariant implying that as in a non-critical string case one is to integrate over the 1d metric or reparametrizations of the boundary. We compute the partition function on the disc in the presence of an additional constant gauge field background and comment on the structure of the corresponding scattering amplitudes.
Cite
@article{arxiv.2005.01321,
title = {Comments on open string with "massive" boundary term},
author = {A. A. Tseytlin},
journal= {arXiv preprint arXiv:2005.01321},
year = {2020}
}
Comments
11 p. Contribution to special collection in Proceedings of the Royal Society A dedicated to Michael J. Duff on the occasion of his 70th birthday