paper

Matching the Standard Model to Heavy-Quark Effective Theory and Nonrelativistic QCD

arXiv:2011.06447 · doi:10.1016/j.nuclphysb.2023.116173

Abstract

We find the leading electroweak corrections to the Lagrangians of heavy-quark effective theory and nonrelativistic QCD. These corrections appear in the Wilson coefficients of the two- and four-quark operators and are considered here at one-loop order through $O (1/ m^{3})$ and $O (1/ m^{2})$ , respectively. The two-quark operators through this order include new parity violating terms, which we derive analogously to the parity preserving QCD result at one-loop order.

16 pages, 5 figures, revised, matches published version, author added