Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Split dimensional regularization for the Coulomb gauge at two loops   We evaluate the coefficients of the leading poles of the complete two-loop
quark self-energy \Sigma(p) in the Coulomb gauge. Working in the framework of
split dimensional regularization, with complex regulating parameters \sigma and
n/2-\sigma for the energy and space components of the loop momentum,
respectively, we find that split dimensional regularization leads to
well-defined two-loop integrals, and that the overall coefficient of the
leading pole term for \Sigma(p) is strictly local. Extensive tables showing the
pole parts of one- and two-loop Coulomb integrals are given. We also comment on
some general implications of split dimensional regularization, discussing in
particular the limit \sigma \to 1/2 and the subleading terms in the
epsilon-expansion of noncovariant integrals.

22
The categories of this paper are: chao-dyn
4
The categories of this paper are: cond-mat
17
The categories of this paper are: q-fin
31
The categories of this paper are: ao-sci
37
The categories of this paper are: supr-con
15
The categories of this paper are: nucl-ex
23
The categories of this paper are: solv-int
27
The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
13
The categories of this paper are: quant-ph
32
The categories of this paper are: atom-ph
5
The categories of this paper are: gr-qc
16
The categories of this paper are: stat
21
The categories of this paper are: adap-org
36
The categories of this paper are: cmp-lg
20
The categories of this paper are: acc-phys