Soft-Collinear Effective Theory: BRST Formulation
High Energy Physics - Theory
2021-07-28 v1 High Energy Physics - Phenomenology
Abstract
We provide a systematic BRST formalism for the soft-collinear effective theory describing interactions of soft and collinear degrees of freedom in the presence of a hard interaction. In particular, we develop full BRST symmetry transformation for SCET theory. We further extend the BRST formulation by making the transformation field dependent. This establishes a mapping between several SCET actions consistently when defined in different gauge conditions. In fact, a definite structure of gauge-fixed actions corresponding to any particular gauge condition can be generated for SCET theory using our formulation.
Cite
@article{arxiv.1912.09482,
title = {Soft-Collinear Effective Theory: BRST Formulation},
author = {Sudhaker Upadhyay and Bhabani Prasad Mandal},
journal= {arXiv preprint arXiv:1912.09482},
year = {2021}
}
Comments
10 pages, no figure