Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On bound-states of the Gross Neveu model with massive fundamental
  fermions   In the search for QFT's that admit boundstates, we reinvestigate the two
dimensional Gross-Neveu model, but with massive fermions. By computing the
self-energy for the auxiliary boundstate field and the effective potential, we
show that there are no bound states around the lowest minimum, but there is a
meta-stable bound state around the other minimum, a local one. The latter
decays by tunneling. We determine the dependence of its lifetime on the fermion
mass and coupling constant.

28
The categories of this paper are: alg-geom
20
The categories of this paper are: acc-phys
32
The categories of this paper are: atom-ph
4
The categories of this paper are: cond-mat
29
The categories of this paper are: funct-an
24
The categories of this paper are: dg-ga
23
The categories of this paper are: solv-int
31
The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat
9
The categories of this paper are: nlin
17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
10
The categories of this paper are: q-bio
14
The categories of this paper are: math-ph
3
The categories of this paper are: physics