Author:
Hatta Yoshitaka,Rajan Abha,Tanaka Kazuhiro
Abstract
Abstract
We show that, in dimensional regularization in the minimal subtraction scheme, the QCD trace anomaly can be unambiguously decomposed into two parts coming from the renormalized quark and gluon energy momentum tensors. We carry out this decomposition at the two-loop level. The result can be used to constrain the renormalization group properties of the nucleon’s twist-four gravitational form factor
$$ {\overline{C}}_{q,g} $$
C
¯
q
,
g
.
Publisher
Springer Science and Business Media LLC
Subject
Nuclear and High Energy Physics
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