Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Baryon resonances coupled to Pion-Nucleon states in lattice QCD   In recent years the study of two particle systems on the lattice has led to
excellent results in the meson sector of the QCD spectrum, however baryon
resonances mostly remain unexplored. We present a study of pion-nucleon systems
as decay product of baryon resonances in different channels, with special focus
on the nucleon spectrum. We evaluate the correlation functions of single and
multi particle interpolators. All the Wick contributions are explicitly
computed and the consequences of reduced symmetries in moving frames are taken
into account. We discuss the theoretical setup together with results for
$n_f=2$ mass degenerate light quarks.

28
The categories of this paper are: alg-geom
34
The categories of this paper are: chem-ph
8
The categories of this paper are: hep-ex
20
The categories of this paper are: acc-phys
6
The categories of this paper are: astro-ph
24
The categories of this paper are: dg-ga
31
The categories of this paper are: ao-sci
27
The categories of this paper are: comp-gas
25
The categories of this paper are: patt-sol
15
The categories of this paper are: nucl-ex
22
The categories of this paper are: chao-dyn
19
The categories of this paper are: eess
14
The categories of this paper are: math-ph
26
The categories of this paper are: bayes-an
21
The categories of this paper are: adap-org
36
The categories of this paper are: cmp-lg