Matching coefficients in nonrelativistic QCD to two-loop accuracy
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DOI: 10.1103/physrevd.100.054016
Abstract: We consider the Lagrange density of non-relativistic Quantum Chromodynamics expanded up to order $1/m^2$, where $m$ is the heavy quark mass, and compute several matching coefficients up to two-loop order. Our results are building blocks… read more here.
Keywords: coefficients nonrelativistic; qcd two; matching coefficients; next next ... See more keywords
B 0 -B \xAF 0 mixing: Matching to HQET at NNLO
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review D"
DOI: 10.1103/physrevd.98.054020
Abstract: We compute perturbative matching coefficients to the heavy quark effective theory (HQET) representation for the QCD effective local ΔB=2 Hamiltonian that determines the mass difference in the B0-B¯0 system of states. We report on the… read more here.
Keywords: matching coefficients; mixing matching; matching hqet; hqet nnlo ... See more keywords