Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Discovery of the shape coexisting 0+ state in 32Mg by a two neutron
  transfer reaction   The Island of Inversion nucleus 32Mg has been studied by a (t,p) two neutron
transfer reaction in inverse kinematics at REX-ISOLDE. The shape coexistent
excited 0+ state in 32Mg has been identified by the characteristic angular
distribution of the protons of the DeltaL = 0 transfer. The excitation energy
of 1058 keV is much lower than predicted by any theoretical model. The low
gamma-ray intensity observed for the decay of this 0+ state indicates a
lifetime of more than 10 ns. Deduced spectroscopic amplitudes are compared with
occupation numbers from shell model calculations.

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The categories of this paper are: alg-geom
18
The categories of this paper are: econ
1
The categories of this paper are: cs
24
The categories of this paper are: dg-ga
16
The categories of this paper are: stat
32
The categories of this paper are: atom-ph
22
The categories of this paper are: chao-dyn
12
The categories of this paper are: nucl-th
0
The categories of this paper are: hep-ph
19
The categories of this paper are: eess
3
The categories of this paper are: physics
7
The categories of this paper are: hep-th
13
The categories of this paper are: quant-ph
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The categories of this paper are: cmp-lg
25
The categories of this paper are: patt-sol
10
The categories of this paper are: q-bio