Measurement of the production cross section of prompt Xi(0)(c) baryons at midrapidity in pp collisions at root s=5.02 TeV
- Authors
- S Acharya
- D Adamova
- A Adler
- J Adolfsson
- G Aglieri Rinella
- M Agnello
- N Agrawal
- Z Ahammed
- S Ahmad
- SU Ahn
- I Ahuja
- Z Akbar
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- M Al-Turany
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- Publication date
- 1 January 2021
- Publisher
- 'Springer Science and Business Media LLC'
- Doi
Abstract
The transverse momentum (pT) differential cross section of the charm-strange baryon \u39e0c is measured at midrapidity (|y| < 0.5) via its semileptonic decay into e+\u39e 12\u3bde in pp collisions at s 1a = 5.02 TeV with the ALICE detector at the LHC. The ratio of the pT-differential \u39e0c-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 \u39e0c-baryon production at midrapidity is also reported, which is used to calculate the baryon-to-meson ratio \u39e0c/D0 = 0.20 \ub1 0.04 (stat.)+0.08 120.07 (syst.). These results provide an additional indication of a modification of the charm fragmentation from e+e 12 and e 12p collisions to pp collisionsSimilar works
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