Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Interaction induced deformation in momentum distribution of spin
  polarized nuclear matter   Effects of spin polarization on the structure of symmetric nuclear matter and
pure neutron matter are investigated. We show that the spin polarization
induces a deformation of the Fermi spheres for nucleons with spin parallel and
opposite to the polarization axes. This feature can be related to the structure
of the one pion exchange contribution to a realistic nucleon-nucleon
interaction. While the anisotropies in the momentum distribution lower the
energy of the system by small amount, the associated variations of the single
particle energies with the angle between the polarization axis and the particle
momentum are significant.

1
The categories of this paper are: cs
17
The categories of this paper are: q-fin
36
The categories of this paper are: cmp-lg
5
The categories of this paper are: gr-qc
6
The categories of this paper are: astro-ph
34
The categories of this paper are: chem-ph
27
The categories of this paper are: comp-gas
32
The categories of this paper are: atom-ph
8
The categories of this paper are: hep-ex
10
The categories of this paper are: q-bio
15
The categories of this paper are: nucl-ex
18
The categories of this paper are: econ
28
The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-ph
4
The categories of this paper are: cond-mat
24
The categories of this paper are: dg-ga