Measurement of the production cross section of prompt Ξ0c baryons at midrapidity in pp collisions at √s = 5.02 TeV
dc.contributor.author | Acharya, Shreyasi | pt_BR |
dc.contributor.author | Gay Ducati, Maria Beatriz | pt_BR |
dc.contributor.author | Pereira, Luis Gustavo | pt_BR |
dc.contributor.author | Pezzi, Rafael Peretti | pt_BR |
dc.contributor.author | ALICE Collaboration | pt_BR |
dc.date.accessioned | 2022-02-11T04:40:28Z | pt_BR |
dc.date.issued | 2021 | pt_BR |
dc.identifier.issn | 1029-8479 | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/235041 | pt_BR |
dc.description.abstract | The transverse momentum (pT) differential cross section of the charm-strange baryon Ξ 0 c is measured at midrapidity (|y| < 0.5) via its semileptonic decay into e +Ξ −νe in pp collisions at √ s = 5.02 TeV with the ALICE detector at the LHC. The ratio of the pT-differential Ξ 0 c -baryon and D0 -meson production cross sections is also reported. The measurements are compared with simulations with different tunes of the PYTHIA 8 event generator, with predictions from a statistical hadronisation model (SHM) with a largely augmented set of charm-baryon states beyond the current lists of the Particle Data Group, and with models including hadronisation via quark coalescence. The pT-integrated cross section of prompt Ξ 0 c -baryon production at midrapidity is also reported, which is used to calculate the baryon-to-meson ratio Ξ 0 c/D0 = 0.20 ± 0.04 (stat.) +0.08 −0.07 (syst.). These results provide an additional indication of a modification of the charm fragmentation from e +e − and e −p collisions to pp collisions. | en |
dc.format.mimetype | application/pdf | pt_BR |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | The journal of high energy physics. Trieste. No. 10 (Oct. 2021), 159, 31 p. | pt_BR |
dc.rights | Open Access | en |
dc.subject | Aceleradores de partículas | pt_BR |
dc.subject | Heavy Ion Experiments | en |
dc.subject | Colisões proton-proton | pt_BR |
dc.title | Measurement of the production cross section of prompt Ξ0c baryons at midrapidity in pp collisions at √s = 5.02 TeV | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 001133530 | pt_BR |
dc.type.origin | Estrangeiro | pt_BR |
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