Lattice corrections to the quark quasidistribution at one loop

Lattice corrections to the quark quasidistribution at one loop

We calculate radiative corrections to the quark quasidistribution in lattice perturbation theory at one loop to leading orders in the lattice spacing. We also consider one-loop corrections in continuum Euclidean space. We find that the infrared behavior of the corrections in Euclidean and Minkowski...

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Veröffentlicht in:Physical review. D 2017-05, Vol.95 (9), Article 094504
Hauptverfasser: Carlson, Carl E., Freid, Michael
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Sprache:eng
Schlagworte:
Euclidean geometry
Euclidean space
Lattice theory
Minkowski space
Perturbation theory
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Quarks
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Freid, Michael
description We calculate radiative corrections to the quark quasidistribution in lattice perturbation theory at one loop to leading orders in the lattice spacing. We also consider one-loop corrections in continuum Euclidean space. We find that the infrared behavior of the corrections in Euclidean and Minkowski space are different. We explore features of momentum loop integrals and demonstrate why loop corrections from the lattice perturbation theory and Euclidean continuum do not correspond with their Minkowski brethren, and comment on a recent suggestion for transcending the differences in the results. Further, we examine the role of the lattice spacing a and of the r parameter in the Wilson action in these radiative corrections.
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source American Physical Society Journals
subjects Euclidean geometry
Euclidean space
Lattice theory
Minkowski space
Perturbation theory
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Quarks
title Lattice corrections to the quark quasidistribution at one loop
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