Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Brane-induced decay of the Kaluza-Klein vacuum   The enhancement in the decay rate of the Kaluza-Klein vacuum due to the
presence of a brane is studied, both in the test brane approximation and beyond
it. Spontaneous brane materialization in the Kaluza-Klein vacuum is also
described.

35
The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph
12
The categories of this paper are: nucl-th
29
The categories of this paper are: funct-an
25
The categories of this paper are: patt-sol
33
The categories of this paper are: plasm-ph
26
The categories of this paper are: bayes-an
23
The categories of this paper are: solv-int
27
The categories of this paper are: comp-gas
13
The categories of this paper are: quant-ph
28
The categories of this paper are: alg-geom
6
The categories of this paper are: astro-ph
37
The categories of this paper are: supr-con
17
The categories of this paper are: q-fin
36
The categories of this paper are: cmp-lg
5
The categories of this paper are: gr-qc