Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Chiral condensate beyond one-loop approximation   We study two-dimensional model with a fermion field and a self-interaction
scalar field with the Yukawa interaction beyond the framework of the one-loop
approximation. We show that in the model besides a phase transitions appear
decays of the excited scalar states.

30
The categories of this paper are: q-alg
18
The categories of this paper are: econ
33
The categories of this paper are: plasm-ph
14
The categories of this paper are: math-ph
25
The categories of this paper are: patt-sol
36
The categories of this paper are: cmp-lg
2
The categories of this paper are: math
20
The categories of this paper are: acc-phys
3
The categories of this paper are: physics
29
The categories of this paper are: funct-an
19
The categories of this paper are: eess
7
The categories of this paper are: hep-th
12
The categories of this paper are: nucl-th
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
23
The categories of this paper are: solv-int