BCFT and OSFT moduli: an exact perturbative comparison
High Energy Physics - Theory
2017-11-30 v2
Abstract
Starting from the pseudo- gauge solution for marginal deformations in OSFT, we analytically compute the relation between the perturbative deformation parameter in the solution and the BCFT marginal parameter , up to fifth order, by evaluating the Ellwood invariants. We observe that the microscopic reason why and are different is that the OSFT propagator renormalizes contact term divergences differently from the contour deformation used in BCFT
Cite
@article{arxiv.1702.06489,
title = {BCFT and OSFT moduli: an exact perturbative comparison},
author = {Pier Vittorio Larocca and Carlo Maccaferri},
journal= {arXiv preprint arXiv:1702.06489},
year = {2017}
}
Comments
26+5 pages, 10 figures V2: minor improvements, published version