Amplitudes in Noncritical Dimensions and Dimensional Regularization
High Energy Physics - Theory
2011-05-27 v1
Abstract
We study how the dimensional regularization works in the light-cone gauge string field theory. We show that it is not necessary to add a contact term to the string field theory action as a counter term in this regularization at least at the tree level. We also investigate the one-loop amplitudes of the bosonic theory in noncritical dimensions and show that they are modular invariant.
Cite
@article{arxiv.1102.2757,
title = {Amplitudes in Noncritical Dimensions and Dimensional Regularization},
author = {Koichi Murakami and Nobuyuki Ishibashi},
journal= {arXiv preprint arXiv:1102.2757},
year = {2011}
}
Comments
10 pages, 1 figure, A contribution to the proceedings of "SFT2010", held at YITP, Kyoto, Japan, October 18-22, 2010