Reparameterization Invariant Operator Basis for NRQED and HQET
High Energy Physics - Phenomenology
2020-01-08 v2
Abstract
We discuss how reparameterization invariance connects a rotationally-invariant heavy particle effective theory with a single fermion to a Lorentz-invariant theory. Using Hilbert-series methods, a Lorentz-invariant operator basis is tabulated, up to and including operators of order , when the fermion couples to an external or gauge interaction.
Cite
@article{arxiv.1810.02356,
title = {Reparameterization Invariant Operator Basis for NRQED and HQET},
author = {Andrew Kobach and Sridip Pal},
journal= {arXiv preprint arXiv:1810.02356},
year = {2020}
}
Comments
18 pages, 4 tables; expanded introduction