Coulomb gauge QCD from flow gauge at three loops

Journal Article · Tue Jan 15 00:00:00 EST 2019 · Annals of Physics

DOI:https://doi.org/10.1016/J.AOP.2018.11.003· OSTI ID:22848467

Andraši, A., E-mail: [e-mail] ^[1]; Taylor, J.C., E-mail: [e-mail] ^[2]

---

1. Vlaška 58, Zagreb (Croatia)
2. DAMTP, Cambridge University (United Kingdom)

We study the consistency of the non-Abelian Coulomb gauge. There are energy divergences in individual diagrams, which are known to cancel to 2-loop order when suitable sets of graphs are summed. We investigate to 3-loop order the inclusion of UV divergent sub-graphs into the energy divergences. In all the examples we study, we find sets of graphs which are free of energy divergences. We make use of an interpolating gauge to regularize the energy divergences while integrals are manipulated. We comment on radiative corrections to the Christ–Lee terms in the Hamiltonian.

• OSTI ID: 22848467
• Journal Information: Annals of Physics, Vol. 400; Other Information: © 2018 Elsevier Inc. All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-4916
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
GAUGE INVARIANCE
HAMILTONIANS
QUANTUM CHROMODYNAMICS
RADIATIVE CORRECTIONS