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26 April 2024

» arxiv » hep-lat/0409014

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Excited hadrons from improved interpolating fields
Tommy Burch ; Christof Gattringer ; Leonid Ya. Glozman ; Reinhard Kleindl ; C. B. Lang ; Andreas Sch{äfer ;
Date:	3 Sep 2004
Journal:	Nucl. Phys. B (Proc. Suppl.) 140 (2005) 284
Subject:	hep-lat
Abstract:	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.
Source:	arXiv, hep-lat/0409014
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