Burch, Tommy and Gattringer, Christof and Glozman, Leonid Ya. and Hagen, Christian and Hierl, Dieter and Kleindl, Reinhard and Lang, C. B. and Schäfer, Andreas
Masses of excited baryons from chirally improved quenched lattice QCD.
Nuclear Physics A 755, pp. 481-484.
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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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