Name: ALICE_2021_I1848990
Year: 2021
Summary: Measurement of beauty and charm production at 5 TeV
Experiment: ALICE
Collider: LHC
InspireID: 1848990
Status: VALIDATED
Reentrant: true
Authors:
 - Yonne Lourens <yonne_14@live.nl>
 - Maria Monalisa De Melo Paulino
References:
 - 'JHEP 05 (2021) 220'
 - 'DOI:10.1007/JHEP05(2021)220'
 - 'arXiv:2102.13601'
 - 'ALICE-6677'
RunInfo: Minimum bias events
Beams: [p+, p+]
Energies: [[2510,2510]]
Luminosity_fb: 19.3e-6
Description:
  'The $p_\text{T}$-differential production cross sections of prompt and non-prompt (produced in beauty-hadron decays) D mesons
   were measured by the ALICE experiment at midrapidity ($|y|<0.5$) in proton-proton collisions at $\sqrt{s}$=5.02 TeV. The data
   sample used in the analysis corresponds to an integrated luminosity of $(19.3\pm0.4)$ nb${}^{-1}$. D mesons were reconstructed
   from their decays $D^0 \to K^-\pi^+$, $D^+\to K^-\pi^+\pi^+$, and $D^+_\text{s} \to \varphi\pi^+\to K^-K^+\pi^+$ and their
   charge conjugates. Compared to previous measurements in the same rapidity region, the cross sections of prompt $D^+$ and
   $D^+_\text{s}$ mesons have an extended $p_\text{T}$ coverage and total uncertainties reduced by a factor ranging from 1.05 to 1.6,
   depending on $p_\text{T}$, allowing for a more precise determination of their $p_\text{T}$-integrated cross sections.
   The results are well described by perturbative QCD calculations. The fragmentation fraction of heavy quarks to strange mesons
   divided by the one to non-strange mesons, $f_\text{s}/(f_\text{u}+f_\text{d})$, is compatible for charm and beauty quarks and
   with previous measurements at different centre-of-mass energies and collision systems. The $b\bar{b}$ production cross section
   per rapidity unit at midrapidity, estimated from non-prompt $D$-meson measurements, is
   $\text{d}\sigma_{b\bar{b}} / \text{d} y_{|y|<0.5}$ = 34.5 $\pm$ 2.4 (stat) ${}^{+4.7}_{-2.9}$ (tot. syst.) $\mu$b${}^{-1}$.
   It is compatible with previous measurements at the same centre-of-mass energy and with the cross section predicted by
   perturbative QCD calculations.'
Keywords: [pp collisions, charm, beauty]
BibKey: ALICE:2021mgk
BibTeX: '@article{ALICE:2021mgk,
    author = "Acharya, Shreyasi and others",
    collaboration = "ALICE",
    title = "{Measurement of beauty and charm production in pp collisions at $ \sqrt{s} $ = 5.02 TeV via non-prompt and prompt D mesons}",
    eprint = "2102.13601",
    archivePrefix = "arXiv",
    primaryClass = "nucl-ex",
    reportNumber = "CERN-EP-2021-034",
    doi = "10.1007/JHEP05(2021)220",
    journal = "JHEP",
    volume = "05",
    pages = "220",
    year = "2021"
}'


   


