HQET renormalization group improved Lagrangian at $\mathcal{O}(1/m^3)$ with leading logarithmic accuracy: Spin-dependent case

Xabier Lobregat; Daniel Moreno; Rudin Petrossian-Byrne

doi:10.1103/PhysRevD.97.054018

paper

HQET renormalization group improved Lagrangian at $O (1/ m^{3})$ with leading logarithmic accuracy: Spin-dependent case

arXiv:1802.07767 · doi:10.1103/PhysRevD.97.054018

Abstract

We obtain the renormalization group improved expressions of the Wilson coefficients associated to the $O (1/ m^{3})$ spin-dependent heavy quark effective theory Lagrangian operators, with leading logarithmic approximation, in the case of zero light quarks. We have employed the Coulomb gauge.

26 pages and 4 figures (but 7 images)

HQET renormalization group improved Lagrangian at O(1/m3) with leading logarithmic accuracy: Spin-dependent case

Abstract

HQET renormalization group improved Lagrangian at $O (1/ m^{3})$ with leading logarithmic accuracy: Spin-dependent case