Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: One-body Properties of Nuclear Matter with Off-shell Propagation   Symmetric nuclear matter is studied in the self-consistent, in-medium
$T$-matrix approach. One-body spectral function, optical potential, and
scattering width are calculated. Properties of quasi-particle excitations at
the Fermi surface are discussed. Dispersive self-energies are dominated by
contributions from the $^1S_0$, $3S_1-^3D_1$, and $^3P_1$ partial waves.

10
The categories of this paper are: q-bio
31
The categories of this paper are: ao-sci
4
The categories of this paper are: cond-mat
21
The categories of this paper are: adap-org
0
The categories of this paper are: hep-ph
25
The categories of this paper are: patt-sol
2
The categories of this paper are: math
15
The categories of this paper are: nucl-ex
24
The categories of this paper are: dg-ga
37
The categories of this paper are: supr-con
32
The categories of this paper are: atom-ph
26
The categories of this paper are: bayes-an
33
The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
13
The categories of this paper are: quant-ph
7
The categories of this paper are: hep-th