Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Alpha - 5He decaying states and the ground state rotational band of 9Be   In a measurement of the 9Be(7Li,alpha 7Li)n alpha reaction at E = 52 MeV it
is unambigously established for the first time that the 9Be excited states
around 6.5 and 11.3 MeV decay into the alpha + 5He channel. This fact may
support previous claims that the 11.3 MeV state is also a member of the ground
state rotational band.

2
The categories of this paper are: math
1
The categories of this paper are: cs
18
The categories of this paper are: econ
5
The categories of this paper are: gr-qc
35
The categories of this paper are: mtrl-th
17
The categories of this paper are: q-fin
4
The categories of this paper are: cond-mat
20
The categories of this paper are: acc-phys
27
The categories of this paper are: comp-gas
26
The categories of this paper are: bayes-an
31
The categories of this paper are: ao-sci
10
The categories of this paper are: q-bio
25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
33
The categories of this paper are: plasm-ph
13
The categories of this paper are: quant-ph