Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Field strength correlators in the instanton gas: The importance of the
  two-instanton contribution   The field strength correlators at zero temperature are semi-classically
evaluated fitting the random instanton liquid model to lattice data for
quenched SU(3) lattice gauge theory. We restrict ourselves to the lowest order
in an instanton density expansion necessary to explain the difference between
transverse and longitudinal correlation functions. In the instanton-instanton
and instanton-antiinstanton contributions the Schwinger line factors neglected
in a previous analysis are numerically taken into account in a weighted Monte
Carlo evaluation. This leads to different estimates for instanton size and
density. A reasonable description of the correlators within the intermediate
range from 0.4 fm to 1 fm is obtained.

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The categories of this paper are: cond-mat
37
The categories of this paper are: supr-con
8
The categories of this paper are: hep-ex
28
The categories of this paper are: alg-geom
23
The categories of this paper are: solv-int
21
The categories of this paper are: adap-org
22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
18
The categories of this paper are: econ
33
The categories of this paper are: plasm-ph
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
15
The categories of this paper are: nucl-ex
25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
7
The categories of this paper are: hep-th