Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: CMD-2 Detector Upgrade   The project of upgrading the detector CMD-2 is presented. The upgraded
detector is called CMD-2M and is going to take data with new collider VEPP-2000
at BINP. The general structure of the detector CMD-2 will remain as is but
major parameters of the detector, such as momentum and angular resolution for
charged particle and energy and spatial resolution for photons, will be
substantially improved.

29
The categories of this paper are: funct-an
17
The categories of this paper are: q-fin
9
The categories of this paper are: nlin
10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph
14
The categories of this paper are: math-ph
23
The categories of this paper are: solv-int
2
The categories of this paper are: math
3
The categories of this paper are: physics
0
The categories of this paper are: hep-ph
30
The categories of this paper are: q-alg
6
The categories of this paper are: astro-ph
19
The categories of this paper are: eess
26
The categories of this paper are: bayes-an
22
The categories of this paper are: chao-dyn
5
The categories of this paper are: gr-qc