Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nf=2 Lattice QCD and Chiral Perturbation Theory   By employing a twisted mass term, we compare recent results from lattice
calculations of Nf=2 dynamical Wilson fermions with Wilson Chiral Perturbation
Theory (WChPT). The final goal is to determine some combinations of
Gasser-Leutwyler Low Energy Constants (LECs). A wide set of data with different
lattice spacings (a ~ 0.2-0.12 fm), different gauge actions (Wilson plaquette,
DBW2) and different quark masses (down to the lowest pion mass allowed by
lattice artifacts and including negative quark masses) provide a strong check
of the applicability of WChPT in this regime and the scaling behaviours in the
continuum limit.

0
The categories of this paper are: hep-ph
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
19
The categories of this paper are: eess
37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
3
The categories of this paper are: physics
15
The categories of this paper are: nucl-ex
25
The categories of this paper are: patt-sol
22
The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th
5
The categories of this paper are: gr-qc
21
The categories of this paper are: adap-org
14
The categories of this paper are: math-ph
20
The categories of this paper are: acc-phys
13
The categories of this paper are: quant-ph