Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Hoyle-analogue state in 13C studied with Antisymmetrized Molecular
  Dynamics   The cluster states in $^{13}{\rm C}$ are investigated by antisymmetrized
molecular dynamics. By investigating the spectroscopic factors, the cluster
configurations of the excited states are discussed. It is found that the
$1/2^+_2$ state is dominantly composed of the $^{12}{\rm C}(0^+_2)\otimes
s_{1/2}$ configuration and can be regarded as a Hoyle analogue state. On the
other hand, the p-wave states ($3/2^-$ and $1/2^-$) do not have such structure,
because of the coupling with other configurations. The isoscalar monopole and
dipole transition strengths from the ground to the excited states are also
studied. It is shown that the excited $1/2^-$ states have strong isoscalar
monopole transition strengths consistent with the observation. On the other
hand, the excited $1/2^+$ states unexpectedly have weak isoscalar dipole
transitions except for the $1/2^+_1$ state. It is discussed that the
suppression of the dipole transition is attributed to the property of the
dipole operator.

32
The categories of this paper are: atom-ph
17
The categories of this paper are: q-fin
33
The categories of this paper are: plasm-ph
25
The categories of this paper are: patt-sol
6
The categories of this paper are: astro-ph
20
The categories of this paper are: acc-phys
37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
28
The categories of this paper are: alg-geom
19
The categories of this paper are: eess
29
The categories of this paper are: funct-an
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The categories of this paper are: dg-ga
9
The categories of this paper are: nlin
7
The categories of this paper are: hep-th
21
The categories of this paper are: adap-org
14
The categories of this paper are: math-ph