@article{0afdd9574fc44bceb4f70f18221cdd91,
title = "Observation of the decay Λb0 → χc1pπ−",
abstract = "The Cabibbo-suppressed decay Λb0→ χc1pπ− 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 Λb0→ χc2pπ− decay is also found. Using the Λb0→ χc1pK− decay as normalisation channel, the ratios of branching fractions are measured to beB(Λb0→χc1pπ−)B(Λb0→χc1pK−)=(6.59±1.01±0.22)×10−2,B(Λb0→χc2pπ−)B(Λb0→χc1pπ−)=0.95±0.30±0.04±0.04,B(Λb0→χc2pK−)B(Λb0→χc1pK−)=1.06±0.05±0.04±0.04, where the first uncertainty is statistical, the second is systematic and the third is due to the uncertainties in the branching fractions of χc1,2→ J/ψγ decays. [Figure not available: see fulltext.]",
keywords = "B physics, Branching fraction, Hadron-Hadron scattering (experiments), QCD, Quarkonium",
author = "{The LHCb collaboration} and R. Aaij and {Abell{\'a}n Beteta}, C. and T. Ackernley and B. Adeva and M. Adinolfi and H. Afsharnia and Aidala, {C. A.} and S. Aiola and Z. Ajaltouni and S. Akar and J. Albrecht and F. Alessio and M. Alexander and {Alfonso Albero}, A. and Z. Aliouche and G. Alkhazov and {Alvarez Cartelle}, P. and S. Amato and Y. Amhis and L. An and L. Anderlini and A. Andreianov and M. Andreotti and F. Archilli and A. Artamonov and M. Artuso and K. Arzymatov and E. Aslanides and M. Atzeni and B. Audurier and S. Bachmann and M. Bachmayer and Back, {J. J.} and {Baladron Rodriguez}, P. and V. Balagura and W. Baldini and {Baptista Leite}, J. and Barlow, {R. J.} and S. Barsuk and W. Barter and M. Bartolini and F. Baryshnikov and Basels, {J. M.} and G. Bassi and B. Batsukh and A. Battig and {Calvo Gomez}, M. and E. Golobardes and {Valls Canudas}, N. and X. Vilasis-Cardona",
note = "Publisher Copyright: {\textcopyright} 2021, The Author(s).",
year = "2021",
month = may,
doi = "10.1007/JHEP05(2021)095",
language = "English",
volume = "2021",
journal = "Journal of High Energy Physics",
issn = "1126-6708",
publisher = "Springer Verlag",
number = "5",
}