Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Determination of pion-baryon coupling constants from QCD sum rules   We evaluate the pi-N-N, pi-Sigma-Sigma and pi-Sigma-Lambda coupling constants
using QCD sum rules based on pion-to-vacuum matrix elements of correlators of
two interpolating baryon fields. The parts of the correlators with Dirac
structure k-slash gamma_5 are used, keeping all terms up to dimension 5 in the
OPE and including continuum contributions on the phenomenological side. The
ratios of these sum rules to baryon mass sum rules yield stable results with
values for the couplings of g_{pi NN}=12+/-5, g_{pi Sigma Sigma}=7+/-4 and
g_{pi Sigma Lambda}=6+/-3. The sources of uncertainty are discussed.

3
The categories of this paper are: physics
13
The categories of this paper are: quant-ph
14
The categories of this paper are: math-ph
18
The categories of this paper are: econ
15
The categories of this paper are: nucl-ex
16
The categories of this paper are: stat
23
The categories of this paper are: solv-int
21
The categories of this paper are: adap-org
2
The categories of this paper are: math
22
The categories of this paper are: chao-dyn
5
The categories of this paper are: gr-qc
9
The categories of this paper are: nlin
6
The categories of this paper are: astro-ph
11
The categories of this paper are: hep-lat
1
The categories of this paper are: cs
20
The categories of this paper are: acc-phys