Charm production and hadronisation in ALICE


  • Benedikt Volkel CERN



charm production, hadronisation, heavy ion physics, high energy physics, ALICE


Heavy-flavour production is an active and highly interesting field of research. Since charm and beauty quarks are predominantly produced in the hard scattering process of colliding nuclei, they serve as unique probes to study the quark-gluon plasma in \PbPb{} collisions. In addition, recent investigations of hadronisation mechanisms have revealed interesting and unexpected features when comparing measurements in \ee{} and in hadronic collisions as in \pp{}, \pPb{} and \PbPb{}. This article summarises the latest results of charm production measured by the ALICE Collaboration. For the first time, \Scnullpp{} and \Onull{} were measured in hadronic collisions and production measurements of the \Lc{} and \Xcnull{} are now included in the computation of the charm production cross section.


B. Andersson et al., Parton fragmentation and string dynamics, Phys. Rep. 97 (1983) 231,

J. C. Collins et al., Factorization of Hard Processes in QCD, Adv. Ser. Direct. High Energy Phys. 5 (1989) 1,

B. A. Kniehl et al., Collinear Subtractions in Hadroproduction of Heavy Quarks, Eur. Phys. J. C 41 (2005) 199,

B. A. Kniehl et al., Inclusive Charmed-Meson Production at the CERN LHC, Eur. Phys. J. C 72 (2012) 2082,

M. Cacciari et al., The pT Spectrum in Heavy-Flavour Hadroproduction, JHEP 05 (1998) 007,

M. Cacciari et al., Theoretical predictions for charm and bottom production at the LHC, JHEP 10 (2012) 137,

ALICE Collaboration, Λ + c production in pp collisions at √ s = 7 TeV and in p–Pb collisions at √ sNN = 5.02 TeV, JHEP 04 (2018) 108,

ALICE Collaboration, Λ + c production in pp and p–Pb collisions at √ sNN = 5.02 TeV, Phys. Rev. C 104 (2021) 5,

CMS Collaboration, Production of Λ + c baryons in proton– proton and lead–lead collisions at √ sNN = 5.02 TeV, Phys. Lett. B 803 (2020) 135328,

ALICE Collaboration, Measurement of prompt D 0 , Λ + c , and Σ 0,++ c (2455) production in ppcollisions at √ s = 13 TeV, ePrint arxiv:2106.08278 (2021).

ALICE Collaboration, The ALICE experiment at the CERN LHC, JINST 3 (2008) S08002,

ALICE Collaboration, Charm-quark fragmentation fractions and production cross section at midrapidity in pp collisions at the LHC, e-Print arxiv:2105.06335 (2021).

P. A. Zyla et al. (Particle Data Group), Review of Particle Physics, Prog. Theor. Exp. Phys. 2020 (2020) and 2021 update, 083C01.

Y. Hsiao et al., Charmed Ωc weak decays into Ω in the lightfront quark model, Eur. Phys. J. C 80 (2020) 1066,

ALICE Collaboration, Observation of a multiplicity dependence in the pT-differential charm baryon-to-meson ratios in proton–proton collisions at √ s = 13 TeV, e-Print arxiv:2111.11948 (2021).

T. Sjostrand et al., A Brief Introduction to PYTHIA 8.1, Comput. Phys. Commun. 178 (2008) 852,

P. Skands et al., Tuning PYTHIA 8.1: the Monash 2013 Tune, Eur. Phys. J. C 74 (2014) 8,

R. Jesper et al., String Formation Beyond Leading Colour, JHEP 08 (2015) 003,

Y. Chen, M. He, Charged-particle multiplicity dependence of charm-baryon-to-meson ratio in high-energy proton-proton collisions, Phys. Lett. B 815 (2021) 136,

D. Ebert et al., Spectroscopy and Regge trajectories of heavy baryons in the relativistic quark-diquark picture, Phys. Rev. D 84 (2011) 014,

V. Minissale, et al., Charm Hadrons in pp collisions at LHC energy within a Coalescence plus Fragmentation approach, Phys. Lett. B 821 (2021) 136,

V. Minissale, et al., New feature of low pT charm quark hadronization in pp collisions at √ s = 7 TeV, Eur. Phys. J. C 78 (2018) 344,

ALICE Collaboration, Measurement of the cross sections of Ξ 0 c and Ξ + c baryons and branching-fraction ratio BR(Ξ 0 c → Ξ −e +νe)/BR(Ξ 0 c → Ξ −π +) in pp collisions at 13 TeV, e-Print arxiv:2105.05187 (2021).

ALICE Collaboration, Measurement of the production cross section of prompt Ξ 0 c baryons at midrapidity in pp collisions at √ s = 5.02 TeV, e-Print arxiv:2105.05616 (2021), https: //




How to Cite

Volkel B. Charm production and hadronisation in ALICE. Supl. Rev. Mex. Fis. [Internet]. 2022 May 20 [cited 2022 Dec. 9];3(3):0308088 1-5. Available from: