% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@ARTICLE{Aaij:454700,
      author       = {Aaij, Roel and others},
      collaboration = {{LHCb Collaboration}},
      title        = {{T}est of lepton universality with $ {\Lambda}_b^0\to
                      {p{K}}^{-}{\mathrm{\ell}}^{+}{\mathrm{\ell}}^{-} $ decays},
      journal      = {Journal of high energy physics},
      volume       = {05},
      number       = {5},
      issn         = {1029-8479},
      address      = {[Trieste]},
      publisher    = {SISSA},
      reportid     = {PUBDB-2021-00677, arXiv:1912.08139. LHCb-PAPER-2019-040.
                      CERN-EP-2019-272},
      pages        = {40 (1-26)},
      year         = {2020},
      abstract     = {The ratio of branching fractions of the decays $
                      {\Lambda}_b^0 $ → pK$^{−}$e$^{+}$e$^{−}$ and $
                      {\Lambda}_b^0 $ → pK$^{−}$μ$^{+}$μ$^{−}$,$
                      {R}_{pK}^{-1} $, is measured for the first time using
                      proton-proton collision data corresponding to an integrated
                      luminosity of 4.7 fb$^{−1}$ recorded with the LHCb
                      experiment at center-of-mass energies of 7, 8 and 13 TeV. In
                      the dilepton mass-squared range 0.1 < q$^{2}$< 6.0
                      GeV$^{2}$/c$^{4}$ and the pK$^{−}$ mass range
                      m(pK$^{−}$) < 2600 MeV/c$^{2}$, the ratio of branching
                      fractions is measured to be $
                      {R}_{pK}^{-1}={1.17}_{-0.16}^{+0.18}\pm 0.07 $, where the
                      first uncertainty is statistical and the second systematic.
                      This is the first test of lepton universality with b baryons
                      and the first observation of the decay $ {\Lambda}_b^0 $ →
                      pK$^{−}$e$^{+}$e$^{−}$.},
      keywords     = {* Automatic Keywords * (INSPIRE) / lepton: universality
                      (INSPIRE) / branching ratio: ratio: measured (INSPIRE) /
                      branching ratio: ratio (INSPIRE) / p p: scattering (INSPIRE)
                      / statistical (INSPIRE) / dilepton (INSPIRE) / baryon
                      (INSPIRE) / LHC-B (INSPIRE) / B physics (autogen) /
                      Branching fraction (autogen) / Flavour Changing Neutral
                      Currents (autogen) / Hadron- Hadron scattering (experiments)
                      (autogen) / Rare decay (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       = {1912.08139},
      howpublished = {arXiv:1912.08139},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:1912.08139;\%\%$},
      UT           = {WOS:000534629900001},
      doi          = {10.1007/JHEP05(2020)040},
      url          = {https://bib-pubdb1.desy.de/record/454700},
}