Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Possible studies at the first stage of the NICA collider operation with
  polarized and unpolarized proton and deuteron beams   This paper contains suggestions for experiments with usage of the Spin
Physics Detector (SPD) at the first stage of the SPD NICA Programme developing
at JINR. Double polarized pp-, dd- and pd- collisions at c.m.s. NN energies of
3.4-10 GeV, which will be accessible at the initial stage of experiments, allow
one to study spin dependence of the NN interaction, search for multiquark
states at double strangeness, charm and beauty thresholds, study the
short-range structure of the deuteron. Double polarized pd scattering offer a
possibility to test the Standard Model through the search for T-invariance
violation.

10
The categories of this paper are: q-bio
9
The categories of this paper are: nlin
36
The categories of this paper are: cmp-lg
28
The categories of this paper are: alg-geom
2
The categories of this paper are: math
22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
14
The categories of this paper are: math-ph
12
The categories of this paper are: nucl-th
17
The categories of this paper are: q-fin
27
The categories of this paper are: comp-gas
26
The categories of this paper are: bayes-an
20
The categories of this paper are: acc-phys
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
11
The categories of this paper are: hep-lat