Massive momentum-subtraction scheme

A momentum subtraction scheme for two–nucleon effective field theory

We introduce a momentum subtraction scheme which obeys the power counting of Kaplan, Savage, and Wise (KSW), developed for systems with large scattering lengths, a. Unlike the power divergence subtraction scheme, coupling constants in this scheme obey the KSW scaling for all μR > 1/a. We comment on the low-energy theorems derived by Cohen and Hansen. We conclude that there is no obstruction to ...

Strong-Coupling Constant at Three Loops in Momentum Subtraction Scheme

In this paper we compute the three-loop corrections to the β function in a momentum subtraction (MOM) scheme with a massive quark. The calculation is performed in the background field formalism applying asymptotic expansions for small and large momenta. Special emphasis is devoted to the relation between the coupling constant in the MOM and MS schemes as well as their ability to describe the ph...

Matching the quasiparton distribution in a momentum subtraction scheme

Precise MSbar light-quark masses from lattice QCD in the regularization invariant symmetric momentum-subtraction scheme

(2010) Precise MSbar light-quark masses from lattice QCD in the regularization invariant symmetric momentum-subtraction scheme. This document is made available in accordance with publisher policies and may differ from the published version or from the version of record. If you wish to cite this item you are advised to consult the publisher's version. Please see the URL above for details on acce...

PreciseMS light-quark masses from lattice QCD in the regularization invariant symmetric momentum-subtraction scheme

We compute the conversion factors needed to obtain theMS and renormalization-group-invariant (RGI) up, down, and strange quark masses at next-to-next-to-leading order from the corresponding parameters renormalized in the recently proposed RI/SMOM and RI=SMOM renormalization schemes. This is important for obtaining the MS masses with the best possible precision from numerical lattice QCD simulat...