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arXiv · 1802.07767

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
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Abstract

We obtain the renormalization group improved expressions of the Wilson coefficients associated to the ${\cal O}(1/m^3)$ 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.

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Xabier Lobregat, Daniel Moreno, Rudin Petrossian-Byrne. 2018-02-21. HQET renormalization group improved Lagrangian at $\mathcal{O}(1/m^3)$ with leading logarithmic accuracy: Spin-dependent case. https://doi.org/10.1103/physrevd.97.054018

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