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@ARTICLE{Severt:889253,
      author       = {Severt, Daniel and Meißner, Ulf-G},
      title        = {{T}he {R}oper resonance in a finite volume},
      journal      = {Communications in theoretical physics},
      volume       = {72},
      number       = {7},
      issn         = {1572-9494},
      address      = {Beijing},
      publisher    = {Inst. of Theoretical Physics},
      reportid     = {FZJ-2021-00158},
      pages        = {075201 -},
      year         = {2020},
      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.},
      cin          = {IAS-4 / IKP-3},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IAS-4-20090406 / I:(DE-Juel1)IKP-3-20111104},
      pnm          = {511 - Computational Science and Mathematical Methods
                      (POF3-511) / DFG project 196253076 - TRR 110: Symmetrien und
                      Strukturbildung in der Quantenchromodynamik (196253076)},
      pid          = {G:(DE-HGF)POF3-511 / G:(GEPRIS)196253076},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000541446400001},
      doi          = {10.1088/1572-9494/ab8a24},
      url          = {https://juser.fz-juelich.de/record/889253},
}