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Masses of excited baryons from chirally improved quenched lattice QCD

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Burch, Tommy ; Gattringer, Christof ; Glozman, Leonid Ya. ; Hagen, Christian ; Hierl, Dieter ; Kleindl, Reinhard ; Lang, C. B. ; Schäfer, Andreas
Date of publication of this fulltext: 05 Aug 2009 13:32


Whereas ground state spectroscopy for quenched QCD is well understood, it is still a challenge to obtain results for excited hadron states. In our study we present results from a new approach for determining spatially optimized operators for lattice spectroscopy of excited hadrons. In order to be able to approach physical quark masses we work with the chirally improved Dirac operator, i.e., ...


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