Chiral Loop Effects in the Quenched Scalar Isovector Propagator

Details Chiral Loop Effects in the Quenched Scalar Isovector Propagator Chiral Loop Effects in the Quenched Scalar Isovector Propagator

2001-10-22

arxiv.org/abs/hep-lat/0110187v1

Nucl.Phys.Proc.Suppl. 106 (2002) 254-256

Physics

High Energy Physics

High Energy Physics - Lattice

3 pages, 3 figures, Lat2001 Proceedings

Scientific paper

10.1016/S0920-5632(01)01680-2

The scalar isovector meson propagator is studied in quenched QCD. For the
lightest quark masses used, this propagator is dominated by a quenched chiral
loop effect associated with the $\eta'$-$\pi$ two-meson intermediate state.
Both the time dependence and the pion mass dependence of the effect are
well-described by quenched chiral perturbation theory.

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