Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Unquenched simulations of four-nucleon interactions   Exploratory simulations of four-nucleon interactions are performed taking
into account the dynamical effects of internal nucleon loops. The four-nucleon
interactions in the isoscalar and isovector channels are described by Yukawa
interactions with auxiliary scalar fields. The nucleon mass and the average
field lengths of the scalar fields are determined as a function of nucleon
hopping parameter and Yukawa coupling strengths. There are no problems with
"exceptional configurations" at strong couplings which make quenched
simulations unreliable.

21
The categories of this paper are: adap-org
4
The categories of this paper are: cond-mat
2
The categories of this paper are: math
33
The categories of this paper are: plasm-ph
28
The categories of this paper are: alg-geom
13
The categories of this paper are: quant-ph
0
The categories of this paper are: hep-ph
37
The categories of this paper are: supr-con
32
The categories of this paper are: atom-ph
25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
23
The categories of this paper are: solv-int
14
The categories of this paper are: math-ph
22
The categories of this paper are: chao-dyn
20
The categories of this paper are: acc-phys
24
The categories of this paper are: dg-ga