Measurement of ω meson production in pp collisions at √s = 13 TeV

The ALICE collaboration

doi:10.1007/JHEP04(2025)067

Measurement of ω meson production in pp collisions at √s = 13 TeV

The ALICE collaboration

European Organization for Nuclear Research
Clermont-Auvergne University
Nuclear Physics Institute ASCR
Variable Energy Cyclotron Centre India
INFN Sezione di Torino
INFN Sezione di Bologna
Department of Physics
Aligarh Muslim University
Korea Institute of Science and Technology Information
University of P.J. Šafárik
FIAS
GSI Helmholtzzentrum fur Schwerionenforschung
Central China Normal University
Instituto de Fisica
Universidad Nacional Autónoma de México
University of Houston
Sungkyunkwan University
Department of Physics and Technology
University of Bergen
Sezione INFN di Cagliari
Goethe University Frankfurt am Main
INFN Sezione di Bari
Physik Department
Technical University of Munich
High Energy Physics Group
Benemerita Universidad Autonoma de Puebla
Horia Hulubei National Institute of Physics and Nuclear Engineering
University of Derby
Institut für Kernphysik
University of Münster
University of Heidelberg
INFN
Ernest Orlando Lawrence Berkeley National Laboratory
Université de Nantes
LTHE (UMR 5564 CNRS/IRD/Université de Grenoble)
University of São Paulo
Department of Physics
University of Oslo
Yale University
Université Paris-Saclay

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

2 Citations (Scopus)

Abstract

The p_T-differential cross section of ω meson production in pp collisions at s = 13 TeV at midrapidity (|y| < 0.5) was measured with the ALICE detector at the LHC, covering an unprecedented transverse-momentum range of 1.6 < p_T< 50 GeV/c. The meson is reconstructed via the ω → π⁺π⁻π⁰ decay channel. The results are compared with various theoretical calculations: PYTHIA8.2 with the Monash 2013 tune overestimates the data by up to 50%, whereas good agreement is observed with Next-to-Leading Order (NLO) calculations incorporating ω fragmentation using a broken SU(3) model. The ω/π⁰ ratio is presented and compared with theoretical calculations and the available measurements at lower collision energies. The presented data triples the p_T ranges of previously available measurements. A constant ratio of C^ω/π0 = 0.578 ± 0.006 (stat.) ± 0.013 (syst.) is found above a transverse momentum of 4 GeV/c, which is in agreement with previous findings at lower collision energies within the systematic and statistical uncertainties.

Original language	English
Article number	67
Journal	Journal of High Energy Physics
Volume	2025
Issue number	4
DOIs	https://doi.org/10.1007/JHEP04(2025)067
Publication status	Published - 1 Apr 2025
Externally published	Yes

Keywords

Hadron-Hadron Scattering
Particle and Resonance Production
QCD

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10.1007/JHEP04(2025)067

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@article{519d061a50254782b4862bf815c0cf92,

title = "Measurement of ω meson production in pp collisions at √s = 13 TeV",

abstract = "The pT-differential cross section of ω meson production in pp collisions at s = 13 TeV at midrapidity (|y| < 0.5) was measured with the ALICE detector at the LHC, covering an unprecedented transverse-momentum range of 1.6 < pT< 50 GeV/c. The meson is reconstructed via the ω → π+π−π0 decay channel. The results are compared with various theoretical calculations: PYTHIA8.2 with the Monash 2013 tune overestimates the data by up to 50\%, whereas good agreement is observed with Next-to-Leading Order (NLO) calculations incorporating ω fragmentation using a broken SU(3) model. The ω/π0 ratio is presented and compared with theoretical calculations and the available measurements at lower collision energies. The presented data triples the pT ranges of previously available measurements. A constant ratio of Cω/π0 = 0.578 ± 0.006 (stat.) ± 0.013 (syst.) is found above a transverse momentum of 4 GeV/c, which is in agreement with previous findings at lower collision energies within the systematic and statistical uncertainties.",

keywords = "Hadron-Hadron Scattering, Particle and Resonance 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 A. Shatat",

note = "Publisher Copyright: {\textcopyright} The Author(s) 2025.",

year = "2025",

month = apr,

day = "1",

doi = "10.1007/JHEP04(2025)067",

language = "English",

volume = "2025",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

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TY - JOUR

T1 - Measurement of ω meson production in pp collisions at √s = 13 TeV

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 - Shatat, A.

PY - 2025/4/1

Y1 - 2025/4/1

N2 - The pT-differential cross section of ω meson production in pp collisions at s = 13 TeV at midrapidity (|y| < 0.5) was measured with the ALICE detector at the LHC, covering an unprecedented transverse-momentum range of 1.6 < pT< 50 GeV/c. The meson is reconstructed via the ω → π+π−π0 decay channel. The results are compared with various theoretical calculations: PYTHIA8.2 with the Monash 2013 tune overestimates the data by up to 50%, whereas good agreement is observed with Next-to-Leading Order (NLO) calculations incorporating ω fragmentation using a broken SU(3) model. The ω/π0 ratio is presented and compared with theoretical calculations and the available measurements at lower collision energies. The presented data triples the pT ranges of previously available measurements. A constant ratio of Cω/π0 = 0.578 ± 0.006 (stat.) ± 0.013 (syst.) is found above a transverse momentum of 4 GeV/c, which is in agreement with previous findings at lower collision energies within the systematic and statistical uncertainties.

AB - The pT-differential cross section of ω meson production in pp collisions at s = 13 TeV at midrapidity (|y| < 0.5) was measured with the ALICE detector at the LHC, covering an unprecedented transverse-momentum range of 1.6 < pT< 50 GeV/c. The meson is reconstructed via the ω → π+π−π0 decay channel. The results are compared with various theoretical calculations: PYTHIA8.2 with the Monash 2013 tune overestimates the data by up to 50%, whereas good agreement is observed with Next-to-Leading Order (NLO) calculations incorporating ω fragmentation using a broken SU(3) model. The ω/π0 ratio is presented and compared with theoretical calculations and the available measurements at lower collision energies. The presented data triples the pT ranges of previously available measurements. A constant ratio of Cω/π0 = 0.578 ± 0.006 (stat.) ± 0.013 (syst.) is found above a transverse momentum of 4 GeV/c, which is in agreement with previous findings at lower collision energies within the systematic and statistical uncertainties.

KW - Hadron-Hadron Scattering

KW - Particle and Resonance Production

KW - QCD

UR - https://www.scopus.com/pages/publications/105008661455

U2 - 10.1007/JHEP04(2025)067

DO - 10.1007/JHEP04(2025)067

M3 - Article

AN - SCOPUS:105008661455

SN - 1126-6708

VL - 2025

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 4

M1 - 67

ER -

Measurement of ω meson production in pp collisions at √s = 13 TeV

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Keywords

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