Perturbative and Non-Perturbative Quarks and Gluons

Details Perturbative and Non-Perturbative Quarks and Gluons Perturbative and Non-Perturbative Quarks and Gluons

1994-03-24

arxiv.org/abs/hep-th/9403147v1

Phys.Lett. B329 (1994) 68-74

Physics

High Energy Physics

High Energy Physics - Theory

11 pages, TeX preprint no. MZ-TH/94-07 and PLY-MS-94-06

Scientific paper

10.1016/0370-2693(94)90518-5

BRST invariance supplies a sufficient condition for the observability of fields. We show that there is a global obstruction to the observability of quarks and gluons and argue that they will not become observables at finite temperature. We give expressions for quarks and gluons that are, however, {\it perturbatively\/} BRST invariant, and hence locally observable, up to order~$g^2$ and~$g$ respectively.

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