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@ARTICLE{Aaij:474167,
      author       = {Aaij, Roel and others},
      collaboration = {{LHCb Collaboration}},
      title        = {{O}bservation of the decay
                      $\Lambda_b^0\rightarrow\chi_{c1}p\pi^-$},
      journal      = {Journal of high energy physics},
      volume       = {05},
      number       = {5},
      issn         = {1029-8479},
      address      = {[Trieste]},
      publisher    = {SISSA},
      reportid     = {PUBDB-2022-00557, arXiv:2103.04949. CERN-EP-2021-037.
                      LHCb-PAPER-2021-003},
      pages        = {095},
      year         = {2021},
      note         = {19 pages, 3 figures, All figures and tables, along with any
                      supplementary material and additional information, are
                      available at
                      https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-003.html
                      (LHCb public pages)'. arXiv admin note: text overlap with
                      arXiv:1806.08084},
      abstract     = {The Cabibbo-suppressed decay $ {\Lambda}_{\mathrm{b}}^0
                      $→ χ$_{c1}$pπ$^{−}$ is observed for the first time
                      using data from proton-proton collisions corresponding to an
                      integrated luminosity of 6 fb$^{−1}$, collected with the
                      LHCb detector at a centre-of-mass energy of 13 TeV. Evidence
                      for the $ {\Lambda}_{\mathrm{b}}^0 $→ χ$_{c2}$pπ$^{−}$
                      decay is also found. Using the $ {\Lambda}_{\mathrm{b}}^0
                      $→ χ$_{c1}$pK$^{−}$ decay as normalisation channel, the
                      ratios of branching fractions are measured to be $
                      {\displaystyle
                      \begin{array}{c}\frac{\mathcal{B}\left({\Lambda}_{\mathrm{b}}^0\to
                      {\chi}_{\mathrm{c}1}{\mathrm{p}\pi}^{-}\right)}{\mathcal{B}\left({\Lambda}_{\mathrm{b}}^0\to
                      {\chi}_{\mathrm{c}1}{\mathrm{p}\mathrm{K}}^{-}\right)}=\left(6.59\pm
                      1.01\pm 0.22\right)\times {10}^{-2},\\
                      {}\frac{\mathcal{B}\left({\Lambda}_{\mathrm{b}}^0\to
                      {\chi}_{\mathrm{c}2}{\mathrm{p}\pi}^{-}\right)}{\mathcal{B}\left({\Lambda}_{\mathrm{b}}^0\to
                      {\chi}_{\mathrm{c}1}{\mathrm{p}\pi}^{-}\right)}=0.95\pm
                      0.30\pm 0.04\pm 0.04,\\
                      {}\frac{\mathcal{B}\left({\Lambda}_{\mathrm{b}}^0\to
                      {\chi}_{\mathrm{c}2}{\mathrm{p}\mathrm{K}}^{-}\right)}{\mathcal{B}\left({\Lambda}_{\mathrm{b}}^0\to
                      {\chi}_{\mathrm{c}1}{\mathrm{p}\mathrm{K}}^{-}\right)}=1.06\pm
                      0.05\pm 0.04\pm 0.04,\end{array}}$where the first
                      uncertainty is statistical, the second is systematic and the
                      third is due to the uncertainties in the branching fractions
                      of χ$_{c1,2} → J/ψγ$ decays.},
      keywords     = {p p: colliding beams (INSPIRE) / Lambda/b0: hadronic decay
                      (INSPIRE) / Lambda/b0: rare decay (INSPIRE) / chi/c1(3510):
                      radiative decay (INSPIRE) / chi/c2(3555): radiative decay
                      (INSPIRE) / Lambda/b0: branching ratio (INSPIRE) / branching
                      ratio: ratio: measured (INSPIRE) / p p: scattering (INSPIRE)
                      / statistical (INSPIRE) / LHC-B (INSPIRE) / CERN LHC Coll
                      (INSPIRE) / experimental results (INSPIRE) / Lambda/b0 -->
                      chi/c1(3510) p pi- (INSPIRE) / Lambda/b0 --> chi/c2(3555) p
                      pi- (INSPIRE) / chi/c1(3510) --> J/psi(3100) photon
                      (INSPIRE) / chi/c2(3555) --> J/psi(3100) photon (INSPIRE) /
                      13000 GeV-cms (INSPIRE) / B physics (autogen) / Branching
                      fraction (autogen) / Hadron-Hadron scattering (experiments)
                      (autogen) / QCD (autogen) / Quarkonium (autogen)},
      cin          = {IT},
      ddc          = {530},
      cid          = {I:(DE-H253)IT-20120731},
      pnm          = {6G9 - IDAF (DESY) (POF4-6G9)},
      pid          = {G:(DE-HGF)POF4-6G9},
      experiment   = {EXP:(DE-H253)TIER-II-20150101},
      typ          = {PUB:(DE-HGF)16},
      eprint       = {2103.04949},
      howpublished = {arXiv:2103.04949},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:2103.04949;\%\%$},
      UT           = {WOS:000651537500001},
      doi          = {10.1007/JHEP05(2021)095},
      url          = {https://bib-pubdb1.desy.de/record/474167},
}