Article detail · 2021
Λc+ Production and Baryon-to-Meson Ratios in pp and p-Pb Collisions at sNN=5.02 TeV at the LHC
- Year
- 2021
- Type
- article
Data source split
- YÖKSİS YÖKSİS article record
- YÖKSİS venue PHYSICAL REVIEW LETTERS
- Catalog match (ISSN) Physical Review Letters
- OpenAlex OpenAlex enrichment (abstract, citations, topics)
Abstract
OpenAlex · lv
The prompt production of the charm baryon ${\mathrm{\ensuremath{\Lambda}}}_{c}^{+}$ and the ${\mathrm{\ensuremath{\Lambda}}}_{c}^{+}/{D}^{0}$ production ratios were measured at midrapidity with the ALICE detector in $pp$ and $p$-Pb collisions at $\sqrt{{s}_{\mathrm{NN}}}=5.02\text{ }\text{ }\mathrm{TeV}$. These new measurements show a clear decrease of the ${\mathrm{\ensuremath{\Lambda}}}_{c}^{+}/{D}^{0}$ ratio with increasing transverse momentum (${p}_{T}$) in both collision systems in the range $2<{p}_{T}<12\text{ }\text{ }\mathrm{GeV}/c$, exhibiting similarities with the light-flavor baryon-to-meson ratios $p/\ensuremath{\pi}$ and $\mathrm{\ensuremath{\Lambda}}/{K}_{S}^{0}$. At low ${p}_{T}$, predictions that include additional color-reconnection mechanisms beyond the leading-color approximation, assume the existence of additional higher-mass charm-baryon states, or include hadronization via coalescence can describe the data, while predictions driven by charm-quark fragmentation processes measured in ${e}^{+}{e}^{\ensuremath{-}}$ and ${e}^{\ensuremath{-}}p$ collisions significantly underestimate the data. The results presented in this Letter provide significant evidence that the established assumption of universality (colliding-system independence) of parton-to-hadron fragmentation is not sufficient to describe charm-baryon production in hadronic collisions at LHC energies.
Topics
Citations
OpenAlex cited_by_count. Not a WoS or Scopus citation count; those sources have no separate column here.
83 citations
OpenAlex cited_by_count (cache / database)
35 publications in the local catalog that cite this work (OpenAlex reference match; not the full global list).
- The ALICE experiment: a journey through QCD 2024
- The ALICE experiment: a journey through QCD 2024
- Λc+ production in pp and in p-Pb collisions at sNN=5.02 TeV 2021
- Λc+\n production in \npp\n and in \np\n-Pb collisions at \nsNN=5.02\n TeV 2021
- Measurement of Prompt D0, Λc+, and Σc0,++(2455) Production in Proton-Proton Collisions at s=13 TeV 2022
- Measurement of Prompt D0 , Λc+ , and Σc0,++(2455) Production in Proton-Proton Collisions at s=13 TeV 2022
- Measurement of Prompt D0, Λc+, and Σc0,++ (2455) Production in Proton-Proton Collisions at √s=13 TeV 2022
- Observation of a multiplicity dependence in the pT-differential charm baryon-to-meson ratios in proton–proton collisions at s=13 TeV 2022
- Observation of a multiplicity dependence in the pT-differential charm baryon-to-meson ratios in proton–proton collisions at s=13 TeV 2022
- Measurement of the Cross Sections of Ξc0 and Ξc+ Baryons and of the Branching-Fraction Ratio BR(Ξc0→Ξ−e+νe)/BR(Ξc0→Ξ−π+) in pp Collisions at s=13 TeV 2021