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@ARTICLE{Ren:889252,
      author       = {Ren, X.-L. and Epelbaum, E. and Gegelia, J. and Meißner,
                      Ulf-G.},
      title        = {{M}eson–baryon scattering in resummed baryon chiral
                      perturbation theory using time-ordered perturbation theory},
      journal      = {The European physical journal / C},
      volume       = {80},
      number       = {5},
      issn         = {1434-6052},
      address      = {Heidelberg},
      publisher    = {Springer},
      reportid     = {FZJ-2021-00157},
      pages        = {406},
      year         = {2020},
      abstract     = {Integral equations for meson–baryon scattering amplitudes
                      are obtained by utilizing time-ordered perturbation theory
                      for a manifestly Lorentz-invariant formulation of baryon
                      chiral perturbation theory. Effective potentials are defined
                      as sums of two-particle irreducible contributions of
                      time-ordered diagrams and the scattering amplitudes are
                      obtained as solutions of integral equations. Ultraviolet
                      renormalizability is achieved by solving integral equations
                      for the leading order amplitude and including higher order
                      corrections perturbatively. As an application of the
                      developed formalism, pion-nucleon scattering is considered.},
      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:000535820900002},
      doi          = {10.1140/epjc/s10052-020-7991-x},
      url          = {https://juser.fz-juelich.de/record/889252},
}