Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: CP violation for neutral charmed meson decays to CP eigenstates   CP asymmetries for neutral charmed meson decays to CP eigenstates are
carefully studied. The formulas and numerical results are presented. The impact
on experiments is briefly discussed.

19
The categories of this paper are: eess
35
The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol
28
The categories of this paper are: alg-geom
20
The categories of this paper are: acc-phys
3
The categories of this paper are: physics
4
The categories of this paper are: cond-mat
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
15
The categories of this paper are: nucl-ex
30
The categories of this paper are: q-alg
16
The categories of this paper are: stat
22
The categories of this paper are: chao-dyn
24
The categories of this paper are: dg-ga
29
The categories of this paper are: funct-an
14
The categories of this paper are: math-ph