Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The possibility of a sizable, direct CP-violating asymmetry in B^-+ ->
  K^-+ eta   The likelihood of a sizable, direct CP-violating asymmetry in the decays
$B^\mp\to K^\mp\eta$, is calculated within the framework of the model which
originally predicted a sizeable asymmetry in $\pi^\mp\eta(\eta')$. It is shown
in a transparent manner that these decays are the best places for providing the
first clear evidence for direct CP violation in the decays of a charged
particle. These decays contain two amplitudes of comparable magnitude, with
different weak-interaction phase, and with different strong-interaction phase
which is explicitly calculated in a model of three coupled channels of physical
hadrons.

28
The categories of this paper are: alg-geom
5
The categories of this paper are: gr-qc
3
The categories of this paper are: physics
7
The categories of this paper are: hep-th
14
The categories of this paper are: math-ph
32
The categories of this paper are: atom-ph
4
The categories of this paper are: cond-mat
19
The categories of this paper are: eess
8
The categories of this paper are: hep-ex
12
The categories of this paper are: nucl-th
36
The categories of this paper are: cmp-lg
10
The categories of this paper are: q-bio
16
The categories of this paper are: stat
15
The categories of this paper are: nucl-ex
9
The categories of this paper are: nlin
2
The categories of this paper are: math