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@ARTICLE{Aaij:454707,
      author       = {Aaij, Roel and others},
      collaboration = {{LHCb Collaboration}},
      title        = {{I}sospin amplitudes in $\Lambda_b^0\to {J}/\psi
                      \Lambda(\Sigma^0)$ and $\Xi_b^0\to {J}/\psi \Xi^0(\Lambda)$
                      decays},
      journal      = {Physical review letters},
      volume       = {124},
      number       = {11},
      issn         = {1079-7114},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {PUBDB-2021-00683, arXiv:1912.02110. CERN-EP-2019-268.
                      LHCb-PAPER-2019-039},
      pages        = {111802 (1-11)},
      year         = {2020},
      abstract     = {Ratios of isospin amplitudes in hadron decays are a useful
                      probe of the interplay between weak and strong interactions
                      and allow searches for physics beyond the standard model. We
                      present the first results on isospin amplitudes in b-baryon
                      decays, using data corresponding to an integrated luminosity
                      of 8.5 fb$^{-1}$, collected with the LHCb detector in pp
                      collisions at center of mass energies of 7, 8, and 13 TeV.
                      The isospin amplitude ratio |A$_1$($\Lambda_b^0\to
                      J/\psi\Sigma^0$)/$\Lambda_b^0\to J/\psi \Lambda$)|, where
                      the subscript on A indicates the final-state isospin, is
                      measured to be less than 1/21.8 at 95\% confidence level.
                      The Cabibbo suppressed $\Xi_b^0\to J/\psi\Lambda$ decay is
                      observed for the first time, allowing for the measurement
                      |A$_0$($\Xi_b^0\to J/\psi\Lambda$/A$_{1/2}$($\Xi_b^0\to
                      J/\psi \Xi^0$)| = 0.37±0.06±0.02, where the uncertainties
                      are statistical and systematic, respectively.},
      keywords     = {* Automatic Keywords * (INSPIRE) / hadron: decay (INSPIRE)
                      / p p: scattering (INSPIRE) / isospin (INSPIRE) / strong
                      interaction (INSPIRE) / statistical (INSPIRE) / new physics
                      (INSPIRE) / suppression (INSPIRE) / LHC-B (INSPIRE) /
                      Elementary Particles and Fields (autogen)},
      cin          = {IT},
      ddc          = {530},
      cid          = {I:(DE-H253)IT-20120731},
      pnm          = {6G1 - TIER II (POF3-6G1)},
      pid          = {G:(DE-HGF)POF3-6G1},
      experiment   = {EXP:(DE-H253)TIER-II-20150101},
      typ          = {PUB:(DE-HGF)16},
      eprint       = {1912.02110},
      howpublished = {arXiv:1912.02110},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:1912.02110;\%\%$},
      pubmed       = {pmid:32242683},
      UT           = {WOS:000519994700005},
      doi          = {10.1103/PhysRevLett.124.111802},
      url          = {https://bib-pubdb1.desy.de/record/454707},
}