Topological sectors and the pion mass

Details Topological sectors and the pion mass Topological sectors and the pion mass

1997-10-03

arxiv.org/abs/hep-lat/9710019v1

Physics

High Energy Physics

High Energy Physics - Lattice

11 pages, 17 Postscript figures, uses a4, epsf

Scientific paper

We study quenched and dynamical pion correlators in the two-flavour Schwinger
model (2D QED) both within topological charge sectors and averaged. The results
show that a clean-cut definition of a pion mass is no longer possible if
tunneling between sectors does not occur.
PACS numbers: 11.15.Ha, 12.20.-m, 11.10.Kk

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