Measurement of the production cross section of prompt Ξc0 baryons at midrapidity in pp collisions at √s=5.02 TeV

作者：Acharya, S.; Adamova, D.; Adler, A.; Adolfsson, J.; Aglieri Rinella, G.; Agnello, M.; Agrawal, N.; Ahammed, Z.; Ahmad, S.; Ahn, S. U.; Ahuja, I.; Akbar, Z.; Akindinov, A.; Al-Turany, M.; Alam, S. N.; Aleksandrov, D.; Alessandro, B.; Alfanda, H. M.; Alfaro Molina, R.; Ali, B.; Ali, Y.; Alici, A.; Alizadehvandchali, N.; Alkin, A.; Alme, J.; Alt, T.; Altenkamper, L.; Altsybeev, I.; Anaam, M. N.; Andrei, C.; Andreou, D.; Andronic, A.; Angeletti, M.; Anguelov, V.; Antinori, F.; Antonioli, P.

来源：JOURNAL OF HIGH ENERGY PHYSICS, 2021, (10): 159.

DOI：10.1007/JHEP10(2021)159

• Heavy Ion Experiments

The transverse momentum (p(T)) differential cross section of the charm-strange baryon Xi(0)(c) is measured at midrapidity (vertical bar y vertical bar < 0.5) via its semileptonic decay into e(+)Xi(-)nu(e) in pp collisions at root s = 5.02TeV with the ALICE detector at the LHC. The ratio of the p(T)-differential Xi(0)(c)-baryon and D-0-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 Xi(0)(c)-baryon production at midrapidity is also reported, which is used to calculate the baryon-to-meson ratio Xi(