Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: QCD Sum Rules study of meson-baryon sigma terms   The pion-baryon sigma terms and the strange-quark condensates of the octet
and the decuplet baryons are calculated by employing the method of quantum
chromodynamics (QCD) sum rules. We evaluate the vacuum-to-vacuum transition
matrix elements of two baryon interpolating fields in an external
isoscalar-scalar field and use a Monte Carlo-based approach to systematically
analyze the sum rules and the uncertainties in the results. We extract the
ratios of the sigma terms, which have rather high accuracy and minimal
dependence on QCD parameters. We discuss the sources of uncertainties and
comment on possible strangeness content of the nucleon and the Delta.

17
The categories of this paper are: q-fin
14
The categories of this paper are: math-ph
21
The categories of this paper are: adap-org
18
The categories of this paper are: econ
37
The categories of this paper are: supr-con
3
The categories of this paper are: physics
35
The categories of this paper are: mtrl-th
6
The categories of this paper are: astro-ph
13
The categories of this paper are: quant-ph
16
The categories of this paper are: stat
29
The categories of this paper are: funct-an
9
The categories of this paper are: nlin
25
The categories of this paper are: patt-sol
28
The categories of this paper are: alg-geom
7
The categories of this paper are: hep-th
34
The categories of this paper are: chem-ph