Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: How the quark self-energy affects the color-superconducting gap   We consider color superconductivity with two flavors of massless quarks which
form Cooper pairs with total spin zero. We solve the gap equation for the
color-superconducting gap parameter to subleading order in the QCD coupling
constant $g$ at zero temperature. At this order in $g$, there is also a
previously neglected contribution from the real part of the quark self-energy
to the gap equation. Including this contribution leads to a reduction of the
color-superconducting gap parameter $\f_0$ by a factor $b_0'=\exp \big[ -(\p
^2+4)/8 \big]\simeq 0.177$. On the other hand, the BCS relation $T_c\simeq
0.57\f_0$ between $\f_0$ and the transition temperature $T_c$ is shown to
remain valid after taking into account corrections from the quark self-energy.
The resulting value for $T_c$ confirms a result obtained previously with a
different method.

28
The categories of this paper are: alg-geom
24
The categories of this paper are: dg-ga
37
The categories of this paper are: supr-con
19
The categories of this paper are: eess
32
The categories of this paper are: atom-ph
36
The categories of this paper are: cmp-lg
6
The categories of this paper are: astro-ph
23
The categories of this paper are: solv-int
26
The categories of this paper are: bayes-an
10
The categories of this paper are: q-bio
20
The categories of this paper are: acc-phys
18
The categories of this paper are: econ
2
The categories of this paper are: math
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex