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@ARTICLE{Ren:902630,
      author       = {Ren, Xiu-Lei and Epelbaum, E. and Gegelia, J. and Meißner,
                      U.-G.},
      title        = {{T}he ${\vec{\Lambda (1405)}}$ in resummed chiral effective
                      field theory},
      journal      = {The European physical journal / C},
      volume       = {81},
      number       = {7},
      issn         = {1434-6044},
      address      = {Heidelberg},
      publisher    = {Springer},
      reportid     = {FZJ-2021-04425},
      pages        = {582},
      year         = {2021},
      abstract     = {We study the unitarized meson–baryon scattering amplitude
                      at leading order in the strangeness S=−1 sector using
                      time-ordered perturbation theory for a manifestly
                      Lorentz-invariant formulation of chiral effective field
                      theory. By solving the coupled-channel integral equations
                      with the full off-shell dependence of the effective
                      potential and applying subtractive renormalization, we
                      analyze the renormalized scattering amplitudes and obtain
                      the two-pole structure of the Λ(1405) resonance. We also
                      point out the necessity of including higher-order terms.},
      cin          = {IAS-4 / IKP-3},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IAS-4-20090406 / I:(DE-Juel1)IKP-3-20111104},
      pnm          = {5111 - Domain-Specific Simulation Data Life Cycle Labs
                      (SDLs) and Research Groups (POF4-511) / DFG project
                      196253076 - TRR 110: Symmetrien und Strukturbildung in der
                      Quantenchromodynamik (196253076)},
      pid          = {G:(DE-HGF)POF4-5111 / G:(GEPRIS)196253076},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000680861900005},
      doi          = {10.1140/epjc/s10052-021-09386-0},
      url          = {https://juser.fz-juelich.de/record/902630},
}