Measurement of Prompt D0, Λc+, and Σc0,++(2455) Production in Proton-Proton Collisions at √s = 13 TeV
ALICE Collaboration. (2022). Measurement of Prompt D0, Λc+, and Σc0,++(2455) Production in Proton-Proton Collisions at √s = 13 TeV. Physical Review Letters, 128(1), Article 012001. https://doi.org/10.1103/PhysRevLett.128.012001
Published in
Physical Review LettersAuthors
Date
2022Copyright
© 2022 CERN, for the ALICE Collaboration
The pT-differential production cross sections of prompt D0, Λ+c, and Σ0,++c(2455) charmed hadrons are measured at midrapidity (|y|<0.5) in pp collisions at √s = 13 TeV. This is the first measurement of Σ0,++c production in hadronic collisions. Assuming the same production yield for the three Σ0,+,++c isospin states, the baryon-to-meson cross section ratios Σ0,+,++c/D0 and Λ+c/D0 are calculated in the transverse momentum (pT) intervals 2<12 and 1<24 GeV/c. Values significantly larger than in e+e− collisions are observed, indicating for the first time that baryon enhancement in hadronic collisions also extends to the Σc. The feed-down contribution to Λ+c production from Σ0,+,++c is also reported and is found to be larger than in e+e− collisions. The data are compared with predictions from event generators and other phenomenological models, providing a sensitive test of the different charm-hadronization mechanisms implemented in the models.
Publisher
American Physical SocietyISSN Search the Publication Forum
0031-9007Keywords
Publication in research information system
https://converis.jyu.fi/converis/portal/detail/Publication/104573197
Metadata
Show full item recordCollections
License
Related items
Showing items with similar title or keywords.
-
Prompt and non-prompt J/ψ production cross sections at midrapidity in proton-proton collisions at √s = 5.02 and 13 TeV
ALICE collaboration (Springer, 2022)The production of J/ψ is measured at midrapidity (|y| < 0.9) in proton-proton collisions at √s = 5.02 and 13 TeV, through the dielectron decay channel, using the ALICE detector at the Large Hadron Collider. The data sets ... -
Measurement of the non-prompt D-meson fraction as a function of multiplicity in proton-proton collisions at √s = 13 TeV
ALICE Collaboration (Springer, 2023)The fractions of non-prompt (i.e. originating from beauty-hadron decays) D0 and D+ mesons with respect to the inclusive yield are measured as a function of the charged-particle multiplicity in proton-proton collisions at ... -
Measurement of pion, kaon and proton production in proton–proton collisions at √s = 7 TeV
ALICE Collaboration (Springer Berlin Heidelberg, 2015)The measurement of primary π±, K ±, p and p production at mid-rapidity (|y| < 0.5) in proton–proton collisions at √s = 7 TeV performed with a large ion collider experiment at the large hadron collider (LHC) is ... -
Dielectron production in proton-proton and proton-lead collisions at √sNN = 5.02 TeV
ALICE Collaboration (American Physical Society, 2020)The first measurements of dielectron production at midrapidity (|ηe| < 0.8) in proton–proton and proton–lead collisions at √sNN = 5.02 TeV at the LHC are presented. The dielectron cross section is measured with the ALICE ... -
Double D-meson production in proton-proton and proton-lead collisions at the LHC
Helenius, Ilkka; Paukkunen, Hannu (Elsevier BV, 2020)We consider the simultaneous production of two heavy-flavoured hadrons – particularly D mesons – at the LHC. We base our calculations on collinearly factorized QCD at next-to-leading order, using the contemporary parton ...