First measurement of Ω0c production in pp collisions at √s = 13 TeV
- The inclusive production of the charm-strange baryon Ω0c is measured for the first time via its hadronic decay into Ω−π+ at midrapidity (|y|<0.5) in proton-proton (pp) collisions at the centre-of-mass energy s√=13 TeV with the ALICE detector at the LHC. The transverse momentum (pT) differential cross section multiplied by the branching ratio is presented in the interval 2<pT<12 GeV/c. The pT dependence of the Ω0c-baryon production relative to the prompt D0-meson and to the prompt Ξ0c-baryon production is compared to various models that take different hadronisation mechanisms into consideration. In the measured pT interval, the ratio of the pT-integrated cross sections of Ω0c and prompt Λ+c baryons multiplied by the Ω−π+ branching ratio is found to be larger by a factor of about 20 with a significance of about 4σ when compared to e+e− collisions.
| URN: | urn:nbn:de:hebis:30:3-801020 |
|---|---|
| URL: | https://arxiv.org/abs/2205.13993v1 |
| DOI: | https://doi.org/10.48550/arXiv.2205.13993 |
| ArXiv Id: | http://arxiv.org/abs/2205.13993v1 |
| Parent Title (German): | arXiv |
| Series (Serial Number): | CERN Report (CERN-EP-2022-106) |
| Publisher: | arXiv |
| Document Type: | Preprint |
| Language: | English |
| Date of Publication (online): | 2022/05/27 |
| Date of first Publication: | 2022/05/27 |
| Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
| Creating Corporation: | ALICE (Körperschaft) |
| Release Date: | 2024/01/24 |
| Issue: | 2205.13993 Version 1 |
| Edition: | Version 1 |
| Page Number: | 11 |
| HeBIS-PPN: | 515439460 |
| Institutes: | Physik / Physik |
| Informatik und Mathematik / Informatik | |
| Wissenschaftliche Zentren und koordinierte Programme / Frankfurt Institute for Advanced Studies (FIAS) | |
| Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
| Sammlungen: | Universitätspublikationen |
| Licence (German): |  Creative Commons - Namensnennung 4.0 |
