Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Brane collisions and braneworld cosmology   Recently, we proposed a new braneworld model [GIT] in which the collision of
a brane universe and a vacuum bubble coming from the extra-dimension is
utilized as a trigger of brane big-bang. In this article, mainly reviewing this
model, we briefly summarize cosmological braneworld scenarios in which
collision of branes plays an important role.

18
The categories of this paper are: econ
1
The categories of this paper are: cs
6
The categories of this paper are: astro-ph
10
The categories of this paper are: q-bio
3
The categories of this paper are: physics
2
The categories of this paper are: math
25
The categories of this paper are: patt-sol
22
The categories of this paper are: chao-dyn
30
The categories of this paper are: q-alg
12
The categories of this paper are: nucl-th
8
The categories of this paper are: hep-ex
16
The categories of this paper are: stat
9
The categories of this paper are: nlin
13
The categories of this paper are: quant-ph
19
The categories of this paper are: eess
27
The categories of this paper are: comp-gas