First measurement of Ωc0 production in pp collisions at s=13 TeV

ALICE Collaboration

doi:10.1016/j.physletb.2022.137625

First measurement of Ω_c⁰ production in pp collisions at s=13 TeV

ALICE Collaboration

Clermont-Auvergne University
Variable Energy Cyclotron Centre India
Nuclear Physics Institute ASCR
Goethe University Frankfurt am Main
European Organization for Nuclear Research
INFN Sezione di Torino
INFN Sezione di Bologna
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
COMSATS University Islamabad
University of Houston
University of Bergen
Sezione INFN di Cagliari
Horia Hulubei National Institute of Physics and Nuclear Engineering
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 Oslo
Yale University
Université Paris-Saclay
INFN Sezione di Catania
Kangwon National University
University of Science and Technology of China
Indian Institute of Technology Indore
University of Jammu
Agh University of Science and Technology Faculty of Computer Science
Bose Institute
Università degli Studi di Catania
Technical University of Munich
University of Athens
Wigner Research Centre for Physics
Daresbury Laboratory
University of São Paulo
University of Liverpool
Lund University
Indian Institute of Technology Bombay
Pontificia Universidad Católica del Perú
Niels Bohr Institutet
Université de Strasbourg
Instituto de Ciencias Nucleares de la UNAM
Institute of Space Sciences
Gauhati University
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
INFN Sezione di Bari
Politecnico di Bari
Stefan Meyer Institute for Subatomic Physics (SMI)
National Research Foundation
University of the Witwatersrand, Johannesburg
University of Kansas
Universidad Autonoma de Sinaloa
INFN Sezione di Trieste
University 'Politehnica' of Bucharest
University of Lyon
An OCC of Homi Bhabha National Institute
Benemerita Universidad Autonoma de Puebla
University of Campinas (UNICAMP)
Science Park 105
University of Tsukuba
University of Birmingham
Laboratory of Molecular Pathology
Federal University of ABC (UFABC)
Sezione di Roma
Warsaw University of Technology
University of California, Berkeley
Centro de Aplicaciones Tecnológicas y Desarrollo Nuclear
University of Cape Town
Panjab University
Technical University of Kosice
Comenius University
University of Zagreb
Saga University
Chicago State University
National Nuclear Research Center
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
University of Tokyo
Yonsei University
University Bonn
Western Norway University of Applied Sciences
CINVESTAV-IPN
Creighton University
University of Jyväskylä
The Ohio State University
National Research and Innovation Agency - BRIN
Suranaree University of Technology
Institute of Experimental Physics Slovak Academy of Sciences
KTO Karatay University
Zentrum für Technologie und Transfer (ZTT)
Pusan National University
Chonbuk National University
Sejong University
Hiroshima University
California Polytechnic State University, San Luis Obispo
National Centre for Nuclear Research (NCBJ)
University College of Southeast Norway
China Institute of Atomic Energy
Fudan University
University of Messina
Università di Foggia
Helsinki Institute of Physics
Chungbuk National University
University of Rajasthan
University of Tübingen
Nara Women's University
Sofia University St. Kliment Ohridski
Bogolyubov Institute for Theoretical Physics Nasu
Institute of Physics of the Czech Academy of Sciences

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

19 Citations (Scopus)

Résumé

The inclusive production of the charm–strange baryon Ω_c⁰ is measured for the first time via its hadronic decay into Ω⁻π⁺ at midrapidity (|y|<0.5) in proton–proton (pp) collisions at the centre-of-mass energy s=13 TeV with the ALICE detector at the LHC. The transverse momentum (p_T) differential cross section multiplied by the branching ratio is presented in the interval 2<p_T<12GeV/c. The p_T dependence of the Ω_c⁰-baryon production relative to the prompt D⁰-meson and to the prompt Ξ_c⁰-baryon production is compared to various models that take different hadronisation mechanisms into consideration. In the measured p_T interval, the ratio of the p_T-integrated cross sections of Ω_c⁰ and prompt Λ_c⁺ baryons multiplied by the Ω⁻π⁺ branching ratio is found to be larger by a factor of about 20 with a significance of about 4σ when compared to e⁺e⁻ collisions.

langue originale	Anglais
Numéro d'article	137625
journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	846
Les DOIs	https://doi.org/10.1016/j.physletb.2022.137625
état	Publié - 10 nov. 2023
Modification externe	Oui

Accès au document

10.1016/j.physletb.2022.137625

Autres fichiers et liens

Lien vers la publication dans Scopus

Contient cette citation

@article{4bfc260bee0949058a3f9a692b9887e8,

title = "First measurement of Ωc0 production in pp collisions at s=13 TeV",

abstract = "The inclusive production of the charm–strange baryon Ωc0 is measured for the first time via its hadronic decay into Ω−π+ at midrapidity (|y|<0.5) in proton–proton (pp) collisions at the centre-of-mass energy s=13 TeV with the ALICE detector at the LHC. The transverse momentum (pT) differential cross section multiplied by the branching ratio is presented in the interval 2T<12GeV/c. The pT dependence of the Ωc0-baryon production relative to the prompt D0-meson and to the prompt Ξc0-baryon production is compared to various models that take different hadronisation mechanisms into consideration. In the measured pT interval, the ratio of the pT-integrated cross sections of Ωc0 and prompt Λc+ baryons multiplied by the Ω−π+ branching ratio is found to be larger by a factor of about 20 with a significance of about 4σ when compared to e+e− collisions.",

author = "\{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 Y. 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 C. Anuj and N. Apadula and L. Aphecetche and H. Appelsh{\"a}user and C. Arata and S. Arcelli and R. Arnaldi and Arsene, \{I. C.\} and M. Arslandok and A. Augustinus and R. Averbeck and S. Aziz and Azmi, \{M. D.\} and A. Badal{\`a} and Baek, \{Y. W.\} and X. Bai and R. Bailhache and Y. Bailung and A. Shatat",

note = "Publisher Copyright: {\textcopyright} 2022 The Author(s)",

year = "2023",

month = nov,

day = "10",

doi = "10.1016/j.physletb.2022.137625",

language = "English",

volume = "846",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - First measurement of Ωc0 production in pp collisions at s=13 TeV

AU - 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 - Ali, Y.

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 - Anuj, C.

AU - Apadula, N.

AU - Aphecetche, L.

AU - Appelshäuser, H.

AU - Arata, C.

AU - Arcelli, S.

AU - Arnaldi, R.

AU - Arsene, I. C.

AU - Arslandok, M.

AU - Augustinus, A.

AU - Averbeck, R.

AU - Aziz, S.

AU - Azmi, M. D.

AU - Badalà, A.

AU - Baek, Y. W.

AU - Bai, X.

AU - Bailhache, R.

AU - Bailung, Y.

AU - Shatat, A.

PY - 2023/11/10

Y1 - 2023/11/10

N2 - The inclusive production of the charm–strange baryon Ωc0 is measured for the first time via its hadronic decay into Ω−π+ at midrapidity (|y|<0.5) in proton–proton (pp) collisions at the centre-of-mass energy s=13 TeV with the ALICE detector at the LHC. The transverse momentum (pT) differential cross section multiplied by the branching ratio is presented in the interval 2T<12GeV/c. The pT dependence of the Ωc0-baryon production relative to the prompt D0-meson and to the prompt Ξc0-baryon production is compared to various models that take different hadronisation mechanisms into consideration. In the measured pT interval, the ratio of the pT-integrated cross sections of Ωc0 and prompt Λc+ baryons multiplied by the Ω−π+ branching ratio is found to be larger by a factor of about 20 with a significance of about 4σ when compared to e+e− collisions.

AB - The inclusive production of the charm–strange baryon Ωc0 is measured for the first time via its hadronic decay into Ω−π+ at midrapidity (|y|<0.5) in proton–proton (pp) collisions at the centre-of-mass energy s=13 TeV with the ALICE detector at the LHC. The transverse momentum (pT) differential cross section multiplied by the branching ratio is presented in the interval 2T<12GeV/c. The pT dependence of the Ωc0-baryon production relative to the prompt D0-meson and to the prompt Ξc0-baryon production is compared to various models that take different hadronisation mechanisms into consideration. In the measured pT interval, the ratio of the pT-integrated cross sections of Ωc0 and prompt Λc+ baryons multiplied by the Ω−π+ branching ratio is found to be larger by a factor of about 20 with a significance of about 4σ when compared to e+e− collisions.

UR - https://www.scopus.com/pages/publications/85172692168

U2 - 10.1016/j.physletb.2022.137625

DO - 10.1016/j.physletb.2022.137625

M3 - Article

AN - SCOPUS:85172692168

SN - 0370-2693

VL - 846

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

M1 - 137625