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@ARTICLE{Bulava:481685,
      author       = {Bulava, John and Hanlon, Andrew D. and Hörz, Ben and
                      Morningstar, Colin and Nicholson, Amy and Romero-López,
                      Fernando and Skinner, Sarah and Vranas, Pavlos and
                      Walker-Loud, André},
      title        = {{E}lastic nucleon-pion scattering at $m_{\pi} \approx
                      200~{\rm {M}e{V}}$ from lattice {QCD}},
      reportid     = {PUBDB-2022-04523, DESY-22-140. arXiv:2208.03867.
                      MIT-CTP/5455},
      year         = {2022},
      note         = {35 pages, 15 figures},
      abstract     = {Elastic nucleon-pion scattering amplitudes are computed
                      using lattice QCD on a single ensemble of gauge field
                      configurations with $N_f = 2+1$ dynamical quark flavors and
                      $m_{\pi}$ = 200 MeV. The $s$-wave scattering lengths with
                      both total isospins $I=1/2$ and $I=3/2$ are inferred from
                      the finite-volume spectrum below the inelastic threshold
                      together with the $I=3/2$ $p$-wave containing the
                      $\Delta(1232)$ resonance. The amplitudes are well-described
                      by the effective range expansion with parameters constrained
                      by fits to the finite-volume energy levels enabling a
                      determination of the $I=3/2$ scattering length with
                      statistical errors below $5\\%$, while the $I = 1/2$ is
                      somewhat less precise. Systematic errors due to excited
                      states and the influence of higher partial waves are
                      controlled, providing a pathway for future computations down
                      to the physical light quark masses with multiple lattice
                      spacings and physical volumes.},
      keywords     = {error, statistical (INSPIRE) / expansion, effective range
                      (INSPIRE) / quark, mass (INSPIRE) / quark, flavor (INSPIRE)
                      / lattice field theory (INSPIRE) / scattering length
                      (INSPIRE) / finite size (INSPIRE) / partial wave (INSPIRE) /
                      Delta(1232) (INSPIRE) / excited state (INSPIRE) / scattering
                      amplitude (INSPIRE) / energy levels (INSPIRE) / gauge field
                      theory (INSPIRE) / lattice (INSPIRE) / isospin (INSPIRE) /
                      scattering (INSPIRE) / lattice QCD (autogen) / scattering
                      amplitudes (autogen)},
      cin          = {$Z_APR$},
      cid          = {$I:(DE-H253)Z_APR-20201126$},
      pnm          = {611 - Fundamental Particles and Forces (POF4-611)},
      pid          = {G:(DE-HGF)POF4-611},
      experiment   = {EXP:(DE-MLZ)NOSPEC-20140101},
      typ          = {PUB:(DE-HGF)25},
      eprint       = {2208.03867},
      howpublished = {arXiv:2208.03867},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:2208.03867;\%\%$},
      doi          = {10.3204/PUBDB-2022-04523},
      url          = {https://bib-pubdb1.desy.de/record/481685},
}