| | |
| | |
Stat |
Members: 3645 Articles: 2'501'711 Articles rated: 2609
20 April 2024 |
|
| | | |
|
Article overview
| |
|
Local Gauge Transformation for the Quark Propagator in an SU(N) Gauge Theory | M. Jamil Aslam
; A. Bashir
; L.X. Gutierrez-Guerrero
; | Date: |
11 May 2015 | Abstract: | In an SU(N) gauge field theory, the n-point Green functions, namely,
propagators and vertices, transform under the simultaneous local gauge
variations of the gluon vector potential and the quark matter field in such a
manner that the physical observables remain invariant. In this article, we
derive this intrinsically non perturbative transformation law for the quark
propagator within the system of covariant gauges. We carry out its explicit
perturbative expansion till O(g_s^6) and, for some terms, till O(g_s^8). We
study the implications of this transformation for the quark-anti-quark
condensate, multiplicative renormalizability of the massless quark propagator,
as well as its relation with the quark-gluon vertex at the one-loop order.
Setting the color factors C_F=1 and C_A=0, Landau-Khalatnikov-Fradkin
transformation for the abelian case of quantum electrodynamics is trivially
recovered. | Source: | arXiv, 1505.2645 | Services: | Forum | Review | PDF | Favorites |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
|
| |
|
|
|
| News, job offers and information for researchers and scientists:
| |