Measurement of the non-prompt D-meson fraction as a function of multiplicity in proton-proton collisions at √s = 13 TeV

The ALICE collaboration

doi:10.1007/JHEP10(2023)092

Measurement of the non-prompt D-meson fraction as a function of multiplicity in proton-proton collisions at √s = 13 TeV

The ALICE collaboration

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Abstract

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 a centre-of-mass energy of s = 13 TeV with the ALICE detector at the LHC. The results are reported in intervals of transverse momentum (p _T) and integrated in the range 1 < p _T < 24 GeV/c. The fraction of non-prompt D⁰ and D⁺ mesons is found to increase slightly as a function of p _T in all the measured multiplicity intervals, while no significant dependence on the charged-particle multiplicity is observed. In order to investigate the production and hadronisation mechanisms of charm and beauty quarks, the results are compared to PYTHIA 8 as well as EPOS 3 and EPOS 4 Monte Carlo simulations, and to calculations based on the colour glass condensate including three-pomeron fusion. [Figure not available: see fulltext.].

Original language	English
Article number	92
Journal	Journal of High Energy Physics
Volume	2023
Issue number	10
DOIs	https://doi.org/10.1007/JHEP10(2023)092
State	Published - Oct 2023

Keywords

Hadron-Hadron Scattering
Heavy Quark Production

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10.1007/JHEP10(2023)092

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@article{ce360c93f0dd4c46b08e08f0cd892e86,

title = "Measurement of the non-prompt D-meson fraction as a function of multiplicity in proton-proton collisions at √s = 13 TeV",

abstract = "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 a centre-of-mass energy of s = 13 TeV with the ALICE detector at the LHC. The results are reported in intervals of transverse momentum (p T) and integrated in the range 1 < p T < 24 GeV/c. The fraction of non-prompt D0 and D+ mesons is found to increase slightly as a function of p T in all the measured multiplicity intervals, while no significant dependence on the charged-particle multiplicity is observed. In order to investigate the production and hadronisation mechanisms of charm and beauty quarks, the results are compared to PYTHIA 8 as well as EPOS 3 and EPOS 4 Monte Carlo simulations, and to calculations based on the colour glass condensate including three-pomeron fusion. [Figure not available: see fulltext.].",

keywords = "Hadron-Hadron Scattering, Heavy Quark Production",

author = "\{The ALICE collaboration\} and S. Acharya and D. Adamov{\'a} and A. Adler and \{Aglieri Rinella\}, G. and M. Agnello and N. Agrawal and Z. Ahammed and S. Ahmad and Ahn, \{S. U.\} and I. Ahuja and A. Akindinov and M. Al-Turany and D. Aleksandrov and B. Alessandro and Alfanda, \{H. M.\} and \{Alfaro Molina\}, R. and B. Ali and A. Alici and N. Alizadehvandchali and A. Alkin and J. Alme and G. Alocco and T. Alt and I. Altsybeev and Anaam, \{M. N.\} and C. Andrei and A. Andronic and V. Anguelov and F. Antinori and P. Antonioli and N. Apadula and L. Aphecetche and H. Appelsh{\"a}user and C. Arata and S. Arcelli and M. Aresti and R. Arnaldi and Arneiro, \{J. G.M.C.A.\} and Arsene, \{I. C.\} and M. Arslandok and A. Augustinus and R. Averbeck and Azmi, \{M. D.\} and A. Badal{\`a} and J. Bae and Baek, \{Y. W.\} and X. Bai and R. Bailhache and \{Bazo Alba\}, \{J. L.\} and Gago, \{A. M.\}",

note = "Publisher Copyright: {\textcopyright} 2023, The Author(s).",

year = "2023",

month = oct,

doi = "10.1007/JHEP10(2023)092",

language = "English",

volume = "2023",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

number = "10",

}

TY - JOUR

T1 - Measurement of the non-prompt D-meson fraction as a function of multiplicity in proton-proton collisions at √s = 13 TeV

AU - The ALICE collaboration

AU - Acharya, S.

AU - Adamová, D.

AU - Adler, A.

AU - Aglieri Rinella, G.

AU - Agnello, M.

AU - Agrawal, N.

AU - Ahammed, Z.

AU - Ahmad, S.

AU - Ahn, S. U.

AU - Ahuja, I.

AU - Akindinov, A.

AU - Al-Turany, M.

AU - Aleksandrov, D.

AU - Alessandro, B.

AU - Alfanda, H. M.

AU - Alfaro Molina, R.

AU - Ali, B.

AU - Alici, A.

AU - Alizadehvandchali, N.

AU - Alkin, A.

AU - Alme, J.

AU - Alocco, G.

AU - Alt, T.

AU - Altsybeev, I.

AU - Anaam, M. N.

AU - Andrei, C.

AU - Andronic, A.

AU - Anguelov, V.

AU - Antinori, F.

AU - Antonioli, P.

AU - Apadula, N.

AU - Aphecetche, L.

AU - Appelshäuser, H.

AU - Arata, C.

AU - Arcelli, S.

AU - Aresti, M.

AU - Arnaldi, R.

AU - Arneiro, J. G.M.C.A.

AU - Arsene, I. C.

AU - Arslandok, M.

AU - Augustinus, A.

AU - Averbeck, R.

AU - Azmi, M. D.

AU - Badalà, A.

AU - Bae, J.

AU - Baek, Y. W.

AU - Bai, X.

AU - Bailhache, R.

AU - Bazo Alba, J. L.

AU - Gago, A. M.

PY - 2023/10

Y1 - 2023/10

N2 - 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 a centre-of-mass energy of s = 13 TeV with the ALICE detector at the LHC. The results are reported in intervals of transverse momentum (p T) and integrated in the range 1 < p T < 24 GeV/c. The fraction of non-prompt D0 and D+ mesons is found to increase slightly as a function of p T in all the measured multiplicity intervals, while no significant dependence on the charged-particle multiplicity is observed. In order to investigate the production and hadronisation mechanisms of charm and beauty quarks, the results are compared to PYTHIA 8 as well as EPOS 3 and EPOS 4 Monte Carlo simulations, and to calculations based on the colour glass condensate including three-pomeron fusion. [Figure not available: see fulltext.].

AB - 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 a centre-of-mass energy of s = 13 TeV with the ALICE detector at the LHC. The results are reported in intervals of transverse momentum (p T) and integrated in the range 1 < p T < 24 GeV/c. The fraction of non-prompt D0 and D+ mesons is found to increase slightly as a function of p T in all the measured multiplicity intervals, while no significant dependence on the charged-particle multiplicity is observed. In order to investigate the production and hadronisation mechanisms of charm and beauty quarks, the results are compared to PYTHIA 8 as well as EPOS 3 and EPOS 4 Monte Carlo simulations, and to calculations based on the colour glass condensate including three-pomeron fusion. [Figure not available: see fulltext.].

KW - Hadron-Hadron Scattering

KW - Heavy Quark Production

UR - https://www.scopus.com/pages/publications/85175832394

U2 - 10.1007/JHEP10(2023)092

DO - 10.1007/JHEP10(2023)092

M3 - Article

AN - SCOPUS:85175832394

SN - 1126-6708

VL - 2023

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 10

M1 - 92

ER -

Measurement of the non-prompt D-meson fraction as a function of multiplicity in proton-proton collisions at √s = 13 TeV

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Keywords

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