Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Beam polarization asymmetries for the p(gamma,K+)Lambda and
  p(gamma,K+)Sigma0 reactions at Egamma=1.5-2.4 GeV   Beam polarization asymmetries for the p(gamma,K+)Lambda and p(gamma,K+)sigma0
reactions are measured for the first time for Egamma=1.5-2.4 GeV and
0.6<cos(theta_cm(K+))<1.0 by using linearly polarized photons at the
Laser-Electron-Photon facility at SPring-8 (LEPS). The observed asymmetries are
positive and gradually increase with rising photon energy. The data are not
consistent with theoretical predictions based on tree-level effective
Lagrangian approaches. Including the new results in the development of the
models is, therefore, crucial for understanding the reaction mechanism and to
test the presence of baryon resonances which are predicted in quark models but
are sofar undiscovered.

8
The categories of this paper are: hep-ex
18
The categories of this paper are: econ
16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th
36
The categories of this paper are: cmp-lg
11
The categories of this paper are: hep-lat
29
The categories of this paper are: funct-an
31
The categories of this paper are: ao-sci
33
The categories of this paper are: plasm-ph
3
The categories of this paper are: physics
32
The categories of this paper are: atom-ph
19
The categories of this paper are: eess
37
The categories of this paper are: supr-con
13
The categories of this paper are: quant-ph
10
The categories of this paper are: q-bio
7
The categories of this paper are: hep-th