Excited hadrons from improved interpolating fields

Details Excited hadrons from improved interpolating fields Excited hadrons from improved interpolating fields

2004-09-03

arxiv.org/abs/hep-lat/0409014v1

Nucl. Phys. B (Proc. Suppl.) 140 (2005) 284

Physics

High Energy Physics

High Energy Physics - Lattice

Lattice2004(spectrum), 3 pages, 1 figure, (LaTeX style file espcrc2.sty and AMS style files)

Scientific paper

The calculation of quark propagators for Ginsparg-Wilson-type Dirac operators is costly and thus limited to a few different sources. We present a new approach for determining spatially optimized operators for lattice spectroscopy of excited hadrons. Jacobi smeared quark sources with different widths are combined to construct hadron operators with different spatial wave functions. We study the Roper state and excited rho and pion mesons.

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