Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nucleon momentum distribution of $^{56}\text{Fe}$ from the axially
  deformed relativistic mean-field model with nucleon--nucleon correlations   Nucleon momentum distribution (NMD), particularly its high-momentum
components, is essential for understanding the nucleon--nucleon ($ NN $)
correlations in nuclei. Herein, we develop the studies of NMD of
$^{56}\text{Fe}$ from the axially deformed relativistic mean-field (RMF) model.
Moreover, we introduce the effects of $ NN $ correlation into the RMF model
from phenomenological models based on deuteron and nuclear matter. For the
region $ k<k_{\text{F}} $, the effects of deformation on the NMD of the RMF
model are investigated using the total and single-particle NMDs. For the region
$ k>k_{\text{F}} $, the high-momentum components of the RMF model are modified
by the effects of $ NN $ correlation, which agree with the experimental data.
Comparing the NMD of relativistic and non-relativistic mean-field models, the
relativistic effects on nuclear structures in momentum space are analyzed.
Finally, by analogizing the tensor correlations in deuteron and Jastrow-type
correlations in nuclear matter, the behaviors and contributions of $ NN $
correlations in $^{56}\text{Fe}$ are further analyzed, which helps clarify the
effects of the tensor force on the NMD of heavy nuclei.

26
The categories of this paper are: bayes-an
17
The categories of this paper are: q-fin
10
The categories of this paper are: q-bio
6
The categories of this paper are: astro-ph
32
The categories of this paper are: atom-ph
14
The categories of this paper are: math-ph
27
The categories of this paper are: comp-gas
15
The categories of this paper are: nucl-ex
33
The categories of this paper are: plasm-ph
35
The categories of this paper are: mtrl-th
21
The categories of this paper are: adap-org
34
The categories of this paper are: chem-ph
4
The categories of this paper are: cond-mat
19
The categories of this paper are: eess
36
The categories of this paper are: cmp-lg
0
The categories of this paper are: hep-ph