Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Lattice QCD study of baryon-baryon interactions in the (S,I)=(-2,0)
  system using the coupled-channel formalism   We investigate baryon-baryon interactions with strangeness $S=-2$ and isospin
I=0 system from Lattice QCD. In order to solve this system, we prepare three
types of baryon-baryon operators ($\Lambda-\Lambda$, $N-\Xi$ and
$\Sigma-\Sigma$) for the sink and construct three source operators
diagonalizing the $3\times3$ correlation matrix. Combining of the prepared sink
operators with the diagonalized source operators, we obtain nine effective
Nambu-Bethe-Salpeter (NBS) wave functions. The $3\times3$ potential matrix is
calculated by solving the coupled-channel Schr\"odinger equation. The flavor
SU(3) breaking effects of the potential matrix are also discussed by comparing
with the results of the SU(3) limit calculation. Our numerical results are
obtained from three sets of 2+1 flavor QCD gauge configurations provided by the
CP-PACS/JLQCD Collaborations.

22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
35
The categories of this paper are: mtrl-th
31
The categories of this paper are: ao-sci
14
The categories of this paper are: math-ph
20
The categories of this paper are: acc-phys
33
The categories of this paper are: plasm-ph
17
The categories of this paper are: q-fin
12
The categories of this paper are: nucl-th
5
The categories of this paper are: gr-qc
27
The categories of this paper are: comp-gas
4
The categories of this paper are: cond-mat
18
The categories of this paper are: econ
34
The categories of this paper are: chem-ph
6
The categories of this paper are: astro-ph
25
The categories of this paper are: patt-sol