Measurement of the Λc+ to D 0 production ratio in periphera PbPb collisions at √sNN = 5.02 TeV

The LHCb collaboration

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Resum

We report on a measurement of the Λc+ to D 0 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+ (D 0) hadrons are reconstructed via the decay channel Λc+ → pK π + (D 0 → K π +) for 2 < p T < 8 GeV/c and in the centrality range of about 65–90%. The results show no significant dependence on p T, 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. [Figure not available: see fulltext.]

Idioma originalAnglès
Número d’article132
Nombre de pàgines26
RevistaJournal of High Energy Physics
Volum2023
Número6
DOIs
Estat de la publicacióPublicada - 22 de juny 2023

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