Search for the doubly heavy Ξbc0 baryon via decays to <i>D</i><SUP>0</SUP><i>pK</i><SUP><i>-</i></SUP>



Aaij, R, Beteta, C Abellan, Ackernley, T, Adeva, B, Adinolfi, M, Afsharnia, H, Aidala, CA, Aiola, S, Ajaltouni, Z, Akar, S
et al (show 918 more authors) (2020) Search for the doubly heavy Ξbc0 baryon via decays to <i>D</i><SUP>0</SUP><i>pK</i><SUP><i>-</i></SUP>. JOURNAL OF HIGH ENERGY PHYSICS, 2020 (11). 95-.

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Abstract

A search for the doubly heavy $\mathit{\Xi}_{bc}^{0}$ baryon using its decay to the $D^0pK^-$ final state is performed using proton-proton collision data at a centre-of-mass energy of 13 TeV collected by the LHCb experiment between 2016 and 2018, corresponding to an integrated luminosity of 5.4 $\mathrm{fb}^{-1}$. No significant signal is found in the invariant mass range from 6.7 to 7.2 $\mathrm{GeV}/c^2$. Upper limits are set at $95\%$ credibility level on the ratio of the $\mathit{\Xi}_{bc}^{0}$ production cross-section times its branching fraction to $D^0pK^-$ relative to that of the $\mathit{\Lambda}_{b}^{0} \to D^0pK^-$ decay. The limits are set as a function of the $\mathit{\Xi}_{bc}^{0}$ mass and lifetime hypotheses, in the rapidity range from 2.0 to 4.5 and in the transverse momentum region from 5 to 25 $\mathrm{GeV}/c$. Upper limits range from $1.7\times10^{-2}$ to $3.0\times10^{-1}$ for the considered $\mathit{\Xi}_{bc}^{0}$ mass and lifetime hypotheses.

Item Type: Article
Additional Information: All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2020-014.html (LHCb public pages)
Uncontrolled Keywords: B physics, Hadron-Hadron scattering (experiments), Heavy quark production, QCD, Spectroscopy
Divisions: Faculty of Science and Engineering > School of Physical Sciences
Depositing User: Symplectic Admin
Date Deposited: 01 Sep 2021 10:35
Last Modified: 14 Mar 2024 23:05
DOI: 10.1007/JHEP11(2020)095
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3134997