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![]() | DeTar, Carleton | Scalar meson spectroscopy with lattice staggered fermions | With sufficiently light up and down quarks the isovector (a0) and isosinglet (f0) scalar meson propagators are dominated at large distance by two-meson states. In the staggered-fermion formulation of lattice quantum chromodynamics, taste-symmetry breaking causes a proliferation of two-meson states t... | Staggered fermions; Chiral theory | 2007-11 |