Study of flavor dependence of the baryon-to-meson ratio in proton-proton collisions at √s=13 TeV

(ALICE Collaboration)

doi:10.1103/PhysRevD.108.112003

Study of flavor dependence of the baryon-to-meson ratio in proton-proton collisions at √s=13 TeV

(ALICE Collaboration)

Clermont-Auvergne University
Nuclear Physics Institute ASCR
European Organization for Nuclear Research
INFN Sezione di Torino
INFN Sezione di Bologna
Variable Energy Cyclotron Centre India
Aligarh Muslim University
Korea Institute of Science and Technology Information
University of P.J. Šafárik
GSI Helmholtzzentrum fur Schwerionenforschung
Central China Normal University
Universidad Nacional Autónoma de México
University of Bologna
University of Houston
University of Bergen
Sezione INFN di Cagliari
Goethe University Frankfurt am Main
INFN Sezione di Bari
Technical University of Munich
Horia Hulubei National Institute of Physics and Nuclear Engineering
University of Derby
University of Münster
University of Heidelberg
INFN
Ernest Orlando Lawrence Berkeley National Laboratory
Université de Nantes
LTHE (UMR 5564 CNRS/IRD/Université de Grenoble)
Universitá di Cagliari
University of São Paulo
University of Oslo
Yale University
University of Tokyo
INFN Sezione di Catania
Sungkyunkwan University
Kangwon National University
University of Science and Technology of China
Université Paris-Saclay
Indian Institute of Technology Indore
Agh University of Science and Technology Faculty of Computer Science
Bose Institute
Centre for Astroparticle Physics and Space Science (CAPSS)
University of Jammu
Università degli Studi di Catania
Dipartimento Interateneo di Fisica ‘M. Merlin’
University of Athens
Gauhati University
Wigner Research Centre for Physics
Daresbury Laboratory
University of Liverpool
Lund University
Indian Institute of Technology Bombay
Pontificia Universidad Católica del Perú
Niels Bohr Institutet
Université de Strasbourg
University of Turin
Institute of Space Sciences
LNF-INFN
Czech Technical University in Prague
Institute for Nuclear Physics
The University of Texas at Austin
FIAS
University of Pavia
INFN Sezione di Pavia
Oak Ridge National Laboratory
Inha University
University of Brescia
Politecnico di Bari
University of Trieste
INFN Sezione di Trieste
Stefan Meyer Institute for Subatomic Physics (SMI)
National Research Foundation
University of the Witwatersrand, Johannesburg
University of Salerno
Sezione di Roma
Universidad Autonoma de Sinaloa
University 'Politehnica' of Bucharest
University of Lyon
An OCC of Homi Bhabha National Institute
Benemerita Universidad Autonoma de Puebla
University of Campinas (UNICAMP)
Max-Planck-Institut für Physik
Science Park 105
University of Tsukuba
ENEA Climate Modeling and Impacts
University of Birmingham
Politecnico di Torino
Laboratory of Molecular Pathology
Federal University of ABC (UFABC)
University of California, Berkeley
Centro de Aplicaciones Tecnológicas y Desarrollo Nuclear
University of Cape Town
Warsaw University of Technology
Panjab University
Technical University of Kosice
Comenius University
Hiroshima University
University of Zagreb
University of Padova
Saga University
Chicago State University
University of Kansas
Universidade Federal do Rio Grande do Sul
University of Tennessee
Nagasaki Institute of Applied Science
Wayne State University
Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Split
Universiteit Utrecht
Yerevan Physics Institute
Yonsei University
University Bonn
Western Norway University of Applied Sciences
CINVESTAV-IPN
University of Jyväskylä
The Ohio State University
COMSATS University Islamabad
National Research and Innovation Agency - BRIN
Pusan National University
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
Zentrum für Technologie und Transfer (ZTT)
Chonbuk National University
Sejong University
California Polytechnic State University
Sofia University St. Kliment Ohridski
National Centre for Nuclear Research (NCBJ)
University College of Southeast Norway
Fudan University
University of Messina
Università di Foggia
Helsinki Institute of Physics
Chungbuk National University
China University of Geosciences
Creighton University
Wroclaw University
National Nuclear Research Center
University of Tübingen
Nara Women's University
Bogolyubov Institute for Theoretical Physics Nasu
Institute of Physics of the Czech Academy of Sciences

Research output: Contribution to journal › Article › peer-review

22 Citations (Scopus)

Abstract

The production cross sections of D0 and Λc+ hadrons originating from beauty-hadron decays (i.e., nonprompt) were measured for the first time at midrapidity (|y|<0.5) by the ALICE Collaboration in proton-proton collisions at a center-of-mass energy s=13 TeV. They are described within uncertainties by perturbative QCD calculations employing the fragmentation fractions of beauty quarks to baryons measured at forward rapidity by the LHCb Collaboration. The bb¯ production cross section per unit of rapidity at midrapidity, estimated from these measurements, is dσbb¯/dy||y|<0.5=83.1±3.5(stat)±5.4(syst)-3.2+12.3(extrap) μb. The baryon-to-meson ratios are computed to investigate the hadronization mechanism of beauty quarks. The nonprompt Λc+/D0 production ratio has a similar trend to the one measured for the promptly produced charmed particles and to the p/π+ and Λ/KS0 ratios, suggesting a similar baryon-formation mechanism among light, strange, charm, and beauty hadrons. The pT -integrated nonprompt Λc+/D0 ratio is found to be significantly higher than the one measured in e+e- collisions.

Original language	English
Article number	112003
Journal	Physical Review D
Volume	108
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevD.108.112003
Publication status	Published - 1 Dec 2023
Externally published	Yes

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10.1103/PhysRevD.108.112003

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@article{4535f2d33c684d2e9824edfe00b16479,

title = "Study of flavor dependence of the baryon-to-meson ratio in proton-proton collisions at √s=13 TeV",

abstract = "The production cross sections of D0 and Λc+ hadrons originating from beauty-hadron decays (i.e., nonprompt) were measured for the first time at midrapidity (|y|<0.5) by the ALICE Collaboration in proton-proton collisions at a center-of-mass energy s=13 TeV. They are described within uncertainties by perturbative QCD calculations employing the fragmentation fractions of beauty quarks to baryons measured at forward rapidity by the LHCb Collaboration. The bb¯ production cross section per unit of rapidity at midrapidity, estimated from these measurements, is dσbb¯/dy||y|<0.5=83.1±3.5(stat)±5.4(syst)-3.2+12.3(extrap) μb. The baryon-to-meson ratios are computed to investigate the hadronization mechanism of beauty quarks. The nonprompt Λc+/D0 production ratio has a similar trend to the one measured for the promptly produced charmed particles and to the p/π+ and Λ/KS0 ratios, suggesting a similar baryon-formation mechanism among light, strange, charm, and beauty hadrons. The pT -integrated nonprompt Λc+/D0 ratio is found to be significantly higher than the one measured in e+e- collisions.",

author = "\{(ALICE Collaboration)\} and S. Acharya and D. Adamov{\'a} 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 Altamura, \{A. R.\} and I. Altsybeev and Anaam, \{M. N.\} and C. Andrei and N. Andreou 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 H. Baba and A. Badal{\`a} and J. Bae and Baek, \{Y. W.\} and X. Bai and A. Shatat",

note = "Publisher Copyright: {\textcopyright} 2023 CERN. ",

year = "2023",

month = dec,

day = "1",

doi = "10.1103/PhysRevD.108.112003",

language = "English",

volume = "108",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "American Physical Society",

number = "11",

}

TY - JOUR

T1 - Study of flavor dependence of the baryon-to-meson ratio in proton-proton collisions at √s=13 TeV

AU - (ALICE Collaboration)

AU - Acharya, S.

AU - Adamová, D.

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 - Altamura, A. R.

AU - Altsybeev, I.

AU - Anaam, M. N.

AU - Andrei, C.

AU - Andreou, N.

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 - Baba, H.

AU - Badalà, A.

AU - Bae, J.

AU - Baek, Y. W.

AU - Bai, X.

AU - Shatat, A.

PY - 2023/12/1

Y1 - 2023/12/1

N2 - The production cross sections of D0 and Λc+ hadrons originating from beauty-hadron decays (i.e., nonprompt) were measured for the first time at midrapidity (|y|<0.5) by the ALICE Collaboration in proton-proton collisions at a center-of-mass energy s=13 TeV. They are described within uncertainties by perturbative QCD calculations employing the fragmentation fractions of beauty quarks to baryons measured at forward rapidity by the LHCb Collaboration. The bb¯ production cross section per unit of rapidity at midrapidity, estimated from these measurements, is dσbb¯/dy||y|<0.5=83.1±3.5(stat)±5.4(syst)-3.2+12.3(extrap) μb. The baryon-to-meson ratios are computed to investigate the hadronization mechanism of beauty quarks. The nonprompt Λc+/D0 production ratio has a similar trend to the one measured for the promptly produced charmed particles and to the p/π+ and Λ/KS0 ratios, suggesting a similar baryon-formation mechanism among light, strange, charm, and beauty hadrons. The pT -integrated nonprompt Λc+/D0 ratio is found to be significantly higher than the one measured in e+e- collisions.

AB - The production cross sections of D0 and Λc+ hadrons originating from beauty-hadron decays (i.e., nonprompt) were measured for the first time at midrapidity (|y|<0.5) by the ALICE Collaboration in proton-proton collisions at a center-of-mass energy s=13 TeV. They are described within uncertainties by perturbative QCD calculations employing the fragmentation fractions of beauty quarks to baryons measured at forward rapidity by the LHCb Collaboration. The bb¯ production cross section per unit of rapidity at midrapidity, estimated from these measurements, is dσbb¯/dy||y|<0.5=83.1±3.5(stat)±5.4(syst)-3.2+12.3(extrap) μb. The baryon-to-meson ratios are computed to investigate the hadronization mechanism of beauty quarks. The nonprompt Λc+/D0 production ratio has a similar trend to the one measured for the promptly produced charmed particles and to the p/π+ and Λ/KS0 ratios, suggesting a similar baryon-formation mechanism among light, strange, charm, and beauty hadrons. The pT -integrated nonprompt Λc+/D0 ratio is found to be significantly higher than the one measured in e+e- collisions.

UR - https://www.scopus.com/pages/publications/85181679313

U2 - 10.1103/PhysRevD.108.112003

DO - 10.1103/PhysRevD.108.112003

M3 - Article

AN - SCOPUS:85181679313

SN - 2470-0010

VL - 108

JO - Physical Review D

JF - Physical Review D

IS - 11

M1 - 112003

ER -

Study of flavor dependence of the baryon-to-meson ratio in proton-proton collisions at √s=13 TeV

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