First measurement of Ω<SUP>0</SUP><sub>c</sub> production in pp collisions at √s=13 TeV


Acharya S., Adamová D., Adler A., Aglieri Rinella G., Agnello M., Agrawal N., ...Daha Fazla

PHYSICS LETTERS B, cilt.846, 2023 (SCI-Expanded, Scopus) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 846
  • Basım Tarihi: 2023
  • Doi Numarası: 10.1016/j.physletb.2022.137625
  • Dergi Adı: PHYSICS LETTERS B
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, INSPEC, zbMATH, Directory of Open Access Journals
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

The inclusive production of the charm-strange baryon Omega(0)(c) is measured for the first time via its hadronic decay into Omega(-)pi(+) at midrapidity (|y| < 0.5) in proton-proton (pp) collisions at the centre-of-mass energy root s = 13 TeV with the ALICE detector at the LHC. The transverse momentum (p(T)) differential cross section multiplied by the branching ratio is presented in the interval 2 < p(T) < 12 GeV/c. The p(T) dependence of the Omega(0)(c)-baryon production relative to the prompt D-0-meson and to the prompt (sic)(0)(c)-baryon production is compared to various models that take different hadronisation mechanisms into consideration. In the measured p(T) interval, the ratio of the p(T)-integrated cross sections of Omega(0)(c) and prompt Lambda(+ )(c)baryons multiplied by the Omega(-)pi(+) branching ratio is found to be larger by a factor of about 20 with a significance of about 4 sigma when compared to e(+)e(-) collisions.(c) 2022 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons .org /licenses /by /4 .0/). Funded by SCOAP3.