Quark and gluon contributions to the QCD trace anomaly
Journal Article
·
· Journal of High Energy Physics (Online)
- Brookhaven National Lab. (BNL), Upton, NY (United States). Dept. of Physics; Kyoto Univ. (Japan). Yukawa Inst. for Theoretical Physics
- Brookhaven National Lab. (BNL), Upton, NY (United States). Dept. of Physics
- Juntendo Univ., Inzai (Japan). Dept. of Physics; National Lab. for High Energy Physics (KEK), Tokai (Japan). Inst. of Particle and Nuclear Studies, KEK Theory Center
We show that, in dimensional reguralization 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. Here, 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 $$\bar{C}$$q,g.
- Research Organization:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
- Grant/Contract Number:
- SC0012704
- OSTI ID:
- 1484886
- Report Number(s):
- BNL--209637-2018-JAAM
- Journal Information:
- Journal of High Energy Physics (Online), Journal Name: Journal of High Energy Physics (Online) Journal Issue: 12 Vol. 2018; ISSN 1029-8479
- Publisher:
- Springer BerlinCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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