Measurement of the Λ c + to D 0 production ratio in peripheral PbPb collisions at s NN = 5. 02 TeV

Journal article

We report on a measurement of the Λc+ to D0 production ratio in peripheral PbPb collisions at sNN = 5.02 TeV with the LHCb detector in the forward rapidity region 2 < y < 4.5. The Λc+ (D0) hadrons are reconstructed via the decay channel Λc+→ pK−π+ (D0→ K−π+) for 2 < pT< 8 GeV/c and in the centrality range of about 65–90%. The results show no significant dependence on pT, y or the mean number of participating nucleons. They are also consistent with similar measurements obtained by the LHCb collaboration in pPb and Pbp collisions at sNN = 5.02 TeV. The data agree well with predictions from PYTHIA in pp collisions at s = 5 TeV but are in tension with predictions of the Statistical Hadronization model.

Authors: Aaij, R; Abdelmotteleb, ASW; Abellan Beteta, C; Abudinén, F; Ackernley, T

• Publication status: Published
• Peer review status: Peer reviewed
• Publisher: Springer
• Journal: Journal of High Energy Physics
• Volume: 2023
• Issue: 6
• Article number: 132
• Publication date: 2023-06-22
• Acceptance date: 2023-04-14
• DOI: 10.1007/jhep06(2023)132
• EISSN: 1029-8479
• Language: English
• Keywords: Heavy Ion Experiments; Heavy Quark Production; Relativistic Heavy Ion Physics; Charm Physics