Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Path Integrals, BRST Identities and Regularization Schemes in
  Nonstandard Gauges   The path integral of a gauge theory is studied in Coulomb-like gauges. The
Christ-Lee terms of operator ordering are reproduced {\it{within}} the path
integration framework. In the presence of fermions, a new operator term, in
addition to that of Christ-Lee, is discovered. Such kind of terms is found to
be instrumental in restoring the invariance of the effective Lagrangian under a
field dependent gauge transformation, which underlies the BRST symmetry. A
unitary regularization scheme which maintains manifest BRST symmetry and is
free from energy divergences is proposed for a nonabelian gauge field.

19
The categories of this paper are: eess
35
The categories of this paper are: mtrl-th
26
The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
11
The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg
3
The categories of this paper are: physics
20
The categories of this paper are: acc-phys
0
The categories of this paper are: hep-ph
33
The categories of this paper are: plasm-ph
12
The categories of this paper are: nucl-th
4
The categories of this paper are: cond-mat
30
The categories of this paper are: q-alg
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci