Measurement of beauty-quark production in pp collisions at s = 13 TeV via non-prompt D mesons

The ALICE collaboration

doi:10.1007/JHEP10(2024)110

Measurement of beauty-quark production in pp collisions at s = 13 TeV via non-prompt D mesons

The ALICE collaboration

Chair of Experimentalphysik - Dense and Strange Hadronic Matter

European Organization for Nuclear Research
LAIC, Université d'Auvergne
Nuclear Physics Institute of the Cas
VECC Kolkata
INFN Sez. di Torino
Istituto Nazionale di Fisica Nucleare, Sezione di Bologna
Aligarh Muslim University
Korea Institute of Science and Technology Information
P. J. Safarik University
Frankfurt Institute for Advanced Studies
GSI Helmholtz Center
Central China Normal University
Universidad Nacional Autónoma de México
University of Houston
Sungkyunkwan University
University of Bergen
Sezione INFN di Cagliari
Johann Wolfgang Goethe University
Istituto Nazionale di Fisica Nucleare, Sezione di Bari
Technical University of Munich
Benemerita Universidad Autonoma de Puebla
Horia Hulubei National Institute of Physics and Nuclear Engineering
University of Derby
University of Münster
Heidelberg University
Dipartimento di Fisica 'G. Galilei' and INFN
Lawrence Berkeley National Laboratory
l'institut du thorax
University of Grenoble Alpes
University of São Paulo
University of Oslo
Yale University
University of Tokyo
Laboratori Nazionali Del Sud
Gangneung-Wonju National University
University of Science and Technology of China
Indian Institute of Technology Indore
University of Jammu
University Paris-Sud
Univ of Mining and Metallurgy
Bose Institute
University of Athens
Gauhati University
Wigner Research Centre for Physics
University of Liverpool
Lund University
The Indian Institute of Technology Bombay
Pontifical Catholic University of Peru San Miguel
Niels Bohr Institutet
Institut Pluridisciplinaire Hubert Curien
Universidad Autonoma de Sinaloa
Institute of Space Sciences
INFN, Laboratori Nazionali Di Frascati
Czech Technical University in Prague
University of Texas at Austin
University of Pavia
Istituto Nazionale di Fisica Nucleare, Sezione di Pavia
Oak Ridge National Laboratory
Pusan National University
University of Brescia
Politecnico di Bari
INFN- Sezione di Trieste
Stefan Meyer Institut für Subatomare Physik (SMI)
National Research Foundation
University of the Witwatersrand, Johannesburg
Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences
Sezione INFN di Roma La Sapienza
University Politehnica of Bucharest
University of Lyon
Warsaw Institute of Technology
Homi Bhabha National Institute
University of Campinas
Max-Planck-Institut für Physik
Inha University
Science Park 105
Tsukuba University
University of Birmingham
University of Eastern Piedmont
UFABC
University of California at Berkeley
Centro de Aplicaciones Tecnológicas y Desarrollo Nuclear
University of Cape Town
Panjab University
Comenius University
Hiroshima University
Politecnico di Torino
Saga University
Chicago State University
University of Kansas
UFRGS
University of Tennessee
Nagasaki Institute of Applied Science
Wayne State University
University of Split
the University of Utrecht
A.I. Alikhanyan National Science Laboratory (YerPhi)
Yonsei University
University of Jyväskylä
University of Bonn
Western Norway University of Applied Sciences
CINVESTAV
Ohio State University
COMSATS University Islamabad
Technical University of Košice
BRIN
China Institute of Atomic Energy
Instituto de Ciencias Nucleares de la UNAM
Suranaree University of Technology
Institute of Experimental Physics Slovak Academy of Sciences
KTO Karatay University
Yildiz Technical University
University of Zagreb
Zentrum für Technologie und Transfer (ZTT)
Chonbuk National University
Sejong University
Sofia University
California Polytechnic State University, San Luis Obispo
National Center for Nuclear Research (NCBJ)
Dipartimento di Fisica e Astronomia dell’Università and Sezione INFN
University of South-Eastern Norway
STFC Daresbury Laboratory
Fudan University
Multimedia and Distributed Systems Laboratory
University of Foggia
University of Helsinki and Helsinki Institute of Physics
Chungbuk National University
China University of Geosciences
Creighton University
Wrocław University
National Nuclear Research Center
University of Tübingen
Nara Women's University
Bogolyubov Institute for Theoretical Physics Nasu
Energy and Sustainable Economic Development (ENEA)
Institute of Physics of the Czech Academy of Sciences

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Abstract

The p_T-differential production cross sections of non-prompt D⁰, D⁺, and D_s⁺ mesons originating from beauty-hadron decays are measured in proton–proton collisions at a centre-of-mass energy s = 13 TeV. The measurements are performed at midrapidity, |y| < 0.5, with the data sample collected by ALICE from 2016 to 2018. The results are in agreement with predictions from several perturbative QCD calculations. The fragmentation fraction of beauty quarks to strange mesons divided by the one to non-strange mesons, f_s/(f_u + f_d), is found to be 0.114 ± 0.016 (stat.) ± 0.006 (syst.) ± 0.003 (BR) ± 0.003 (extrap.). This value is compatible with previous measurements at lower centre-of-mass energies and in different collision systems in agreement with the assumption of universality of fragmentation functions. In addition, the dependence of the non-prompt D meson production on the centre-of-mass energy is investigated by comparing the results obtained at s = 5.02 and 13 TeV, showing a hardening of the non-prompt D-meson p_T-differential production cross section at higher s. Finally, the bb¯ production cross section per unit of rapidity at midrapidity is calculated from the non-prompt D⁰, D⁺, D_s⁺, and Λ_c⁺ hadron measurements, obtaining dσ/dy=75.2±3.2stat.±5.2syst._−3.2^+12.3extrap. μb.

Original language	English
Article number	110
Journal	Journal of High Energy Physics
Volume	2024
Issue number	10
DOIs	https://doi.org/10.1007/JHEP10(2024)110
State	Published - Oct 2024

Keywords

Hadron-Hadron Scattering
Heavy Quark Production
QCD

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10.1007/JHEP10(2024)110

Cite this

@article{671a16d8379741ecb28ca400e84f8736,

title = "Measurement of beauty-quark production in pp collisions at s = 13 TeV via non-prompt D mesons",

abstract = "The pT-differential production cross sections of non-prompt D0, D+, and Ds+ mesons originating from beauty-hadron decays are measured in proton–proton collisions at a centre-of-mass energy s = 13 TeV. The measurements are performed at midrapidity, |y| < 0.5, with the data sample collected by ALICE from 2016 to 2018. The results are in agreement with predictions from several perturbative QCD calculations. The fragmentation fraction of beauty quarks to strange mesons divided by the one to non-strange mesons, fs/(fu + fd), is found to be 0.114 ± 0.016 (stat.) ± 0.006 (syst.) ± 0.003 (BR) ± 0.003 (extrap.). This value is compatible with previous measurements at lower centre-of-mass energies and in different collision systems in agreement with the assumption of universality of fragmentation functions. In addition, the dependence of the non-prompt D meson production on the centre-of-mass energy is investigated by comparing the results obtained at s = 5.02 and 13 TeV, showing a hardening of the non-prompt D-meson pT-differential production cross section at higher s. Finally, the bb¯ production cross section per unit of rapidity at midrapidity is calculated from the non-prompt D0, D+, Ds+, and Λc+ hadron measurements, obtaining dσ/dy=75.2±3.2stat.±5.2syst.−3.2+12.3extrap. μb.",

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

author = "\{The ALICE collaboration\} and S. Acharya and D. Adamov{\'a} and A. Agarwal and \{Aglieri Rinella\}, G. and L. Aglietta and M. Agnello and N. Agrawal and Z. Ahammed and S. Ahmad and Ahn, \{S. U.\} and I. Ahuja and A. Akindinov and V. Akishina 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 Altamura, \{A. R.\} and I. Altsybeev and Alvarado, \{J. R.\} and Anaam, \{M. N.\} and C. Andrei and N. Andreou and A. Andronic and E. Andronov 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 L. Fabbietti",

note = "Publisher Copyright: {\textcopyright} The Author(s) 2024.",

year = "2024",

month = oct,

doi = "10.1007/JHEP10(2024)110",

language = "English",

volume = "2024",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

publisher = "Springer Verlag",

number = "10",

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TY - JOUR

T1 - Measurement of beauty-quark production in pp collisions at s = 13 TeV via non-prompt D mesons

AU - The ALICE collaboration

AU - Acharya, S.

AU - Adamová, D.

AU - Agarwal, A.

AU - Aglieri Rinella, G.

AU - Aglietta, L.

AU - Agnello, M.

AU - Agrawal, N.

AU - Ahammed, Z.

AU - Ahmad, S.

AU - Ahn, S. U.

AU - Ahuja, I.

AU - Akindinov, A.

AU - Akishina, V.

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 - Altamura, A. R.

AU - Altsybeev, I.

AU - Alvarado, J. R.

AU - Anaam, M. N.

AU - Andrei, C.

AU - Andreou, N.

AU - Andronic, A.

AU - Andronov, E.

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 - Fabbietti, L.

PY - 2024/10

Y1 - 2024/10

N2 - The pT-differential production cross sections of non-prompt D0, D+, and Ds+ mesons originating from beauty-hadron decays are measured in proton–proton collisions at a centre-of-mass energy s = 13 TeV. The measurements are performed at midrapidity, |y| < 0.5, with the data sample collected by ALICE from 2016 to 2018. The results are in agreement with predictions from several perturbative QCD calculations. The fragmentation fraction of beauty quarks to strange mesons divided by the one to non-strange mesons, fs/(fu + fd), is found to be 0.114 ± 0.016 (stat.) ± 0.006 (syst.) ± 0.003 (BR) ± 0.003 (extrap.). This value is compatible with previous measurements at lower centre-of-mass energies and in different collision systems in agreement with the assumption of universality of fragmentation functions. In addition, the dependence of the non-prompt D meson production on the centre-of-mass energy is investigated by comparing the results obtained at s = 5.02 and 13 TeV, showing a hardening of the non-prompt D-meson pT-differential production cross section at higher s. Finally, the bb¯ production cross section per unit of rapidity at midrapidity is calculated from the non-prompt D0, D+, Ds+, and Λc+ hadron measurements, obtaining dσ/dy=75.2±3.2stat.±5.2syst.−3.2+12.3extrap. μb.

AB - The pT-differential production cross sections of non-prompt D0, D+, and Ds+ mesons originating from beauty-hadron decays are measured in proton–proton collisions at a centre-of-mass energy s = 13 TeV. The measurements are performed at midrapidity, |y| < 0.5, with the data sample collected by ALICE from 2016 to 2018. The results are in agreement with predictions from several perturbative QCD calculations. The fragmentation fraction of beauty quarks to strange mesons divided by the one to non-strange mesons, fs/(fu + fd), is found to be 0.114 ± 0.016 (stat.) ± 0.006 (syst.) ± 0.003 (BR) ± 0.003 (extrap.). This value is compatible with previous measurements at lower centre-of-mass energies and in different collision systems in agreement with the assumption of universality of fragmentation functions. In addition, the dependence of the non-prompt D meson production on the centre-of-mass energy is investigated by comparing the results obtained at s = 5.02 and 13 TeV, showing a hardening of the non-prompt D-meson pT-differential production cross section at higher s. Finally, the bb¯ production cross section per unit of rapidity at midrapidity is calculated from the non-prompt D0, D+, Ds+, and Λc+ hadron measurements, obtaining dσ/dy=75.2±3.2stat.±5.2syst.−3.2+12.3extrap. μb.

KW - Hadron-Hadron Scattering

KW - Heavy Quark Production

KW - QCD

UR - https://www.scopus.com/pages/publications/85206638689

U2 - 10.1007/JHEP10(2024)110

DO - 10.1007/JHEP10(2024)110

M3 - Article

AN - SCOPUS:85206638689

SN - 1126-6708

VL - 2024

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 10

M1 - 110

ER -

Measurement of beauty-quark production in pp collisions at s = 13 TeV via non-prompt D mesons

Abstract

Keywords

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