@article{3196731,
    title = "Measurement of beauty and charm production in pp collisions at
<mml:msqrt>s</mml:msqrt>=5.02 TeV via non-prompt and prompt D mesons",
    author = "Acharya, S. and Adamova, D. and Adler, A. and Adolfsson, J. and Rinella, and G. Aglieri and Agnello, M. and Agrawal, N. and Ahammed, Z. and Ahmad, S. and and Ahn, S. U. and Akbar, Z. and Akindinov, A. and Al-Turany, M. and and Aleksandrov, D. and Alessandro, B. and Alfanda, H. M. and Alfaro Molina, and R. and Ali, B. and Ali, Y. and Alici, A. and Alizadehvandchali, N. and and Alkin, A. and Alme, J. and Alt, T. and Altenkamper, L. and Altsybeev, I and and Anaam, M. N. and Andrei, C. and Andreou, D. and Andronic, A. and and Anguelov, V and Antinori, F. and Antonioli, P. and Anuj, C. and Apadula, and N. and Aphecetche, L. and Appelshauser, H. and Arcelli, S. and Arnaldi, and R. and Arsene, I. C. and Arslandok, M. and Augustinus, A. and Averbeck, and R. and Aziz, S. and Azmi, M. D. and Badala, A. and Baek, Y. 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    journal = "Journal of High Energy Physics",
    year = "2021",
    number = "5",
    publisher = "Springer-Verlag",
    issn = "1126-6708, 1029-8479",
    doi = "10.1007/JHEP05(2021)220",
    keywords = "Heavy Ion Experiments",
    abstract = "The p(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
<mml:msqrt>s</mml:msqrt> = 5.02 TeV. The data sample used in the
analysis corresponds to an integrated luminosity of (19.3 0.4) nb(-1). D
mesons were reconstructed from their decays D-0 -> K-pi (+), D+-> K-pi
(+)pi (+), and Ds+</mml:msubsup>-> phi pi+-> K-K+pi+ and their charge
conjugates. Compared to previous measurements in the same rapidity
region, the cross sections of prompt D+ and Ds+</mml:msubsup> mesons
have an extended p(T) coverage and total uncertainties reduced by a
factor ranging from 1.05 to 1.6, depending on p(T), allowing for a more
precise determination of their p(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(s)/(f(u) + f(d)), is compatible for charm
and beauty quarks and with previous measurements at different
centre-of-mass energies and collision systems. The
bb<overbar></mml:mover> production cross section per rapidity unit at
midrapidity, estimated from non-prompt D-meson measurements, is
d<mml:msub>sigma bb<overbar></mml:mover>/dy<mml:mfenced
open=”|”><mml:msub><mml:mfenced close=”|”
open=”|”>y</mml:mfenced><0.5=34.5<plus/minus>2.4<mml:mfenced
close=”)”
open=”(”>stat</mml:mfenced>-2.9<mml:mo>+4.7<mml:mfenced
close=”)”
open=”(”>tot<mml:mo>.syst</mml:mfenced></mml:mfenced> mu b. It is
compatible with previous measurements at the same centre-of-mass energy
and with the cross section pre- dicted by perturbative QCD
calculations.<fig id=”Figa” position=”anchor”><graphic
position=”anchor” specific-use=”HTML”
mime-subtype=”JPEG”
xmlns:xlink=”http://www.w3.org/1999/xlink”
xlink:href=”MediaObjects/13130_2021_15783_Figa_HTML.jpg”
id=”MO1”></graphic"
}