Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: High-momentum components in the $^4$He nucleus caused by inter-nucleon
  correlations   High-momentum components of nuclei are essential for understanding the
underlying inter-nucleon correlations in nuclei. We perform the comprehensive
analysis for the origin of the high-momentum components of $^4$He in the
framework of Tensor-optimized High-momentum Antisymmetrized Molecular Dynamics
(TO-HMAMD), which is a completely variational approach as an $ab$ $initio$
theory starting from the bare nucleon-nucleon ($NN$) interaction. The
analytical derivations are provided for the nucleon momentum distribution of
the Antisymmetrized Momentum Dynamics (AMD) wave functions, with subtraction of
center-of-mass motion. The nucleon momentum distribution for $^4$He is
calculated by applying a new expansion technique to our $ab$ $initio$ wave
function, and agrees with the values extracted from experimental data up to the
high-momentum region. Fine-grained analysis is performed for the high-momentum
components in $^4$He with respect to different nucleon correlations.
Contributions from tensor, central with short-range, and many-body correlations
are extracted from the nucleon momentum distributions. The manifestation of
tensor correlation around 2 fm$^{-1}$ region is explicitly confirmed by
comparing the momentum distributions predicted using different types of $NN$
interactions with and without the tensor force.

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The categories of this paper are: mtrl-th
2
The categories of this paper are: math
7
The categories of this paper are: hep-th
10
The categories of this paper are: q-bio
27
The categories of this paper are: comp-gas
1
The categories of this paper are: cs
26
The categories of this paper are: bayes-an
22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
8
The categories of this paper are: hep-ex
13
The categories of this paper are: quant-ph
30
The categories of this paper are: q-alg
9
The categories of this paper are: nlin
3
The categories of this paper are: physics
5
The categories of this paper are: gr-qc
25
The categories of this paper are: patt-sol