Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
2001-02-06
Phys.Rev.D64:054502,2001
Physics
High Energy Physics
High Energy Physics - Lattice
8 pages, 13 figs, 1 table, 2 figures and some text changed, due to an error in the conversion into physical units in v2
Scientific paper
10.1103/PhysRevD.64.054502
We investigate topology in lattice simulations of QCD with two flavours of dynamical Wilson fermions. At various sea quark masses we find reasonable agreement between results for the topological charge from fermionic and gluonic definitions, the latter with cooling. We study correlations of the topological charge with light hadronic observables and find effects in the flavour singlet pseudoscalar channel. The quark mass dependence of the topological susceptibility, $\chi$, is in agreement with the leading order small m_pi expectation, chi=(f_pi m_pi)^2/4.
Bali Gunnar S.
Eicker Norbert
Lippert Thomas
Neff Hartmut
Orth Boris
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