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Regular version of the site

Article

Measurement of Ξ++cc production in pp collisions at √s=13 TeV

Chinese Physics C. 2020. Vol. 44. No. 2. P. 022001.
A. Boldyrev, D. Derkach, M. Hushchyn, N. Kazeev, A. Maevskiy, F. Ratnikov, A. Ryzhikov, A. Ustyuzhanin, K. Arzymatov, V. Belavin, M. Borisyak.

The production of Ξ++cc baryons in proton-proton collisions at a centre-of-mass energy of s√=13 TeV is measured in the transverse-momentum range 4<pT<15 GeV/c and the rapidity range 2.0<y<4.5. The data used in this measurement correspond to an integrated luminosity of 1.7 fb−1, recorded by the LHCb experiment during 2016. The ratio of the Ξ++cc production cross-section times the branching fraction of the Ξ++cc→Λ+cK−π+π+ decay relative to the prompt Λ+c production cross-section is found to be (2.22±0.27±0.29)×10−4, assuming the central value of the measured Ξ++cc lifetime, where the first uncertainty is statistical and the second systematic.