The Roper resonance in a finite volume |
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| Authors: | Daniel Severt Ulf-G Meiß ner |
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| Institution: | 1.Helmholtz-Institut für Strahlen- und Kernphysik and Bethe Center for Theoretical Physics, Universität Bonn, D-53115 Bonn, Germany;2.Institute for Advanced Simulation, Institut für Kernphysik and Jülich Center for Hadron Physics, Forschungszentrum Jülich, D-52425 Jülich, Germany;3.Tbilisi State University, 0186 Tbilisi, Georgia |
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| Abstract: | We calculate the energy levels corresponding to the Roper resonance based on a two-flavor chiral effective Lagrangian for pions, nucleons, deltas, and the Roper resonance at the leading one-loop order. We show that the Roper mass can be extracted from these levels for lattice volumes of moderate size. |
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| Keywords: | Lattice QCD Roper resonance finite volume methods |
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