Spectrum of quenched twisted mass lattice QCD at maximal twist

Details Spectrum of quenched twisted mass lattice QCD at maximal twist Spectrum of quenched twisted mass lattice QCD at maximal twist

2005-03-08

arxiv.org/abs/hep-lat/0503007v2

Phys.Rev. D71 (2005) 094505

Physics

High Energy Physics

High Energy Physics - Lattice

23 pages, 16 figures, added discussion of pion decay constant

Scientific paper

10.1103/PhysRevD.71.094505

Hadron masses are computed from quenched twisted mass lattice QCD for a degenerate doublet of up and down quarks with the twist angle set to pi/2, since this maximally twisted theory is expected to be free of linear discretization errors. Two separate definitions of the twist angle are used, and the hadron masses for these two cases are compared. The flavor breaking, that can arise due to twisting, is discussed in the context of mass splittings within the Delta(1232) multiplet.

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