Momentum subtraction and theRratio

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

Can approximate mental calculation account for operational momentum in addition and subtraction?

The operational momentum (OM) effect describes a cognitive bias whereby we overestimate the results of mental addition problems while underestimating for subtraction. To test whether the OM emerges from psychophysical characteristics of the mental magnitude representation we measured two basic parameters (Weber fraction and numerical estimation accuracy) characterizing the mental magnitude repr...

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...