Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Anti-halo effects on reaction cross sections for $^{14,15,16}$C isotopes   We study anti-halo effects on reaction cross sections $\sigma_{\rm R}$ for
$^{14,15,16}$C scattering from a $^{12}$C target at 83~MeV/nucleon, using the
$g$-matrix double-folding model. $^{15}$C is described by the $^{14}$C~+~$n$
two-body model that reproduces the measured large s-wave spectroscopic factor,
i.e., the shell inversion that the 1s$_{1/2}$ orbital is lower than the
0d$_{5/2}$ orbital in energy. $^{16}$C is described by the $^{14}$C~+~$n$~+~$n$
three-body model with the phenomenological three-body force (3BF) that explains
the measured small s-wave spectroscopic factor. The 3BF allows the
single-particle energies of the $^{14}$C + $n$ subsystem to depend on the
position $r$ of the second neutron from the center of mass of the subsystem.
The 1s$_{1/2}$ orbital is lower than the 0d$_{5/2}$ orbital for large $r$, but
the shell inversion is restored for small $r$. Anti-halo effects due to the
"partial shell inversion" make $\sigma_{\rm R}$ for $^{16}$C smaller than that
for $^{15}$C. We also investigate projectile breakup effects on the mass-number
dependence of $\sigma_{\rm R}$ with the continuum discretized coupled-channels
method.

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The categories of this paper are: chao-dyn
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The categories of this paper are: funct-an
33
The categories of this paper are: plasm-ph
20
The categories of this paper are: acc-phys
9
The categories of this paper are: nlin
26
The categories of this paper are: bayes-an
13
The categories of this paper are: quant-ph
6
The categories of this paper are: astro-ph
21
The categories of this paper are: adap-org
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The categories of this paper are: nucl-ex
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The categories of this paper are: stat
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The categories of this paper are: econ
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The categories of this paper are: math
34
The categories of this paper are: chem-ph
4
The categories of this paper are: cond-mat
23
The categories of this paper are: solv-int