f0(980) production in inelastic pp collisions at s = 5.02 TeV

ALICE Collaboration

doi:10.1016/j.physletb.2022.137644

f₀(980) production in inelastic pp collisions at s = 5.02 TeV

ALICE Collaboration

Sección de Física

Université Clermont Auvergne
Czech Academy of Sciences
Goethe University Frankfurt
CERN
National Institute for Nuclear Physics
Variable Energy Cyclotron Centre
Aligarh Muslim University
Korea Institute of Science and Technology Information
Pavol Jozef Šafárik University
GSI Helmholtz Centre for Heavy Ion Research
Central China Normal University
Universidad Nacional Autónoma de México
COMSATS University Islamabad
University of Houston
University of Bergen
Horia Hulubei National Institute of Physics and Nuclear Engineering
University of Münster
Heidelberg University
Lawrence Berkeley National Laboratory
Nantes Université
Université Grenoble Alpes
University of Oslo
Yale University
Université Paris-Saclay
Kangwon National University
University of Science and Technology of China
Indian Institute of Technology Indore
University of Jammu
AGH University of Krakow
Bose Institute
University of Catania
Technical University of Munich
National and Kapodistrian University of Athens
Wigner Research Centre for Physics
STFC Daresbury Laboratory
Universidade de São Paulo
University of Liverpool
Lund University
Indian Institute of Technology Bombay
University of Copenhagen
Université de Strasbourg
Institute for Space Sciences
Gauhati University
Faculty of Nuclear Sciences and Physical Engineering
Henryk Niewodniczanski Institute of Nuclear Physics of the Polish Academy of Sciences
University of Texas at Austin
University of Pavia
Oak Ridge National Laboratory
Inha University
University of Brescia
Polytechnic University of Bari
Austrian Academy of Sciences
National Research Foundation
University of the Witwatersrand
Pontificia Universidad Católica del Perú
Universidad Autonoma de Sinaloa
National University of Science and Technology POLITEHNICA Bucharest
Université de Lyon
Homi Bhabha National Institute
Benemerita Universidad Autonoma de Puebla
Universidade Estadual de Campinas
National Institute for Subatomic Physics
University of Tsukuba
University of Birmingham
University of Eastern Piedmont
Universidade Federal do ABC
Warsaw University of Technology
University of California at 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
University of Kansas
Universidade Federal do Rio Grande do Sul
University of Tennessee, Knoxville
Nagasaki Institute of Applied Science
Wayne State University
University of Split
Utrecht University
A. Alikhanian Yerevan Institute of Physics
The University of Tokyo
Yonsei University
University of Bonn
Western Norway University of Applied Sciences
Centro de Investigacion y de Estudios Avanzados del Instituto Politécnico Nacional
Creighton University
University of Jyväskylä
Ohio State University
National Research and Innovation Agency Republic of Indonesia
Suranaree University of Technology
Slovak Academy of Sciences
KTO Karatay University
Zentrum für Technologie und Transfer (ZTT)
Pusan National University
Jeonbuk National University
Sejong University
Hiroshima University
California Polytechnic State University, San Luis Obispo
National Centre for Nuclear Research
University of South-Eastern Norway
China National Nuclear Corporation
Fudan University
University of Messina
University of Foggia
University of Helsinki
Chungbuk National University
University of Rajasthan
University of Tübingen
Nara Women's University
Sofia University
NASU - Bogolyubov Institute for Theoretical Physics

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10 Scopus citations

Abstract

The measurement of the production of f₀(980) in inelastic pp collisions at s=5.02 TeV is presented. This is the first reported measurement of inclusive f₀(980) yield at LHC energies. The production is measured at midrapidity, |y|<0.5, in a wide transverse momentum range, 0<p_T<16 GeV/c, by reconstructing the resonance in the f₀(980) →π⁺π⁻ hadronic decay channel using the ALICE detector. The p_T-differential yields are compared to those of pions, protons and ϕ mesons as well as to predictions from the HERWIG 7.2 QCD-inspired Monte Carlo event generator and calculations from a coalescence model that uses the AMPT model as an input. The ratio of the p_T-integrated yield of f₀(980) relative to pions is compared to measurements in e⁺e⁻ and pp collisions at lower energies and predictions from statistical hadronisation models and HERWIG 7.2. A mild collision energy dependence of the f₀(980) to pion production is observed in pp collisions from SPS to LHC energies. All considered models underpredict the p_T-integrated 2f₀(980)/(π⁺ +π⁻) ratio. The prediction from the canonical statistical hadronisation model assuming a zero total strangeness content of f₀(980) is consistent with the data within 1.9σ and is the closest to the data. The results provide an essential reference for future measurements of the particle yield and nuclear modification in p–Pb and Pb–Pb collisions, which have been proposed to be instrumental to probe the elusive nature and quark composition of the f₀(980) scalar meson.

Original language	English
Article number	137644
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	846
DOIs	https://doi.org/10.1016/j.physletb.2022.137644
State	Published - 10 Nov 2023

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10.1016/j.physletb.2022.137644

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@article{929767211edf4b3ca910bede8d51c10c,

title = "f0(980) production in inelastic pp collisions at s = 5.02 TeV",

abstract = "The measurement of the production of f0(980) in inelastic pp collisions at s=5.02 TeV is presented. This is the first reported measurement of inclusive f0(980) yield at LHC energies. The production is measured at midrapidity, |y|<0.5, in a wide transverse momentum range, 0T<16 GeV/c, by reconstructing the resonance in the f0(980) →π+π− hadronic decay channel using the ALICE detector. The pT-differential yields are compared to those of pions, protons and ϕ mesons as well as to predictions from the HERWIG 7.2 QCD-inspired Monte Carlo event generator and calculations from a coalescence model that uses the AMPT model as an input. The ratio of the pT-integrated yield of f0(980) relative to pions is compared to measurements in e+e− and pp collisions at lower energies and predictions from statistical hadronisation models and HERWIG 7.2. A mild collision energy dependence of the f0(980) to pion production is observed in pp collisions from SPS to LHC energies. All considered models underpredict the pT-integrated 2f0(980)/(π+ +π−) ratio. The prediction from the canonical statistical hadronisation model assuming a zero total strangeness content of f0(980) is consistent with the data within 1.9σ and is the closest to the data. The results provide an essential reference for future measurements of the particle yield and nuclear modification in p{\textendash}Pb and Pb{\textendash}Pb collisions, which have been proposed to be instrumental to probe the elusive nature and quark composition of the f0(980) scalar meson.",

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 M. Aresti 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 \{Bazo Alba\}, \{J. L.\} and Gago, \{A. M.\}",

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

year = "2023",

month = nov,

day = "10",

doi = "10.1016/j.physletb.2022.137644",

language = "English",

volume = "846",

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

issn = "0370-2693",

}

TY - JOUR

T1 - f0(980) production in inelastic pp collisions at s = 5.02 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 - Aresti, M.

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 - Bazo Alba, J. L.

AU - Gago, A. M.

PY - 2023/11/10

Y1 - 2023/11/10

N2 - The measurement of the production of f0(980) in inelastic pp collisions at s=5.02 TeV is presented. This is the first reported measurement of inclusive f0(980) yield at LHC energies. The production is measured at midrapidity, |y|<0.5, in a wide transverse momentum range, 0T<16 GeV/c, by reconstructing the resonance in the f0(980) →π+π− hadronic decay channel using the ALICE detector. The pT-differential yields are compared to those of pions, protons and ϕ mesons as well as to predictions from the HERWIG 7.2 QCD-inspired Monte Carlo event generator and calculations from a coalescence model that uses the AMPT model as an input. The ratio of the pT-integrated yield of f0(980) relative to pions is compared to measurements in e+e− and pp collisions at lower energies and predictions from statistical hadronisation models and HERWIG 7.2. A mild collision energy dependence of the f0(980) to pion production is observed in pp collisions from SPS to LHC energies. All considered models underpredict the pT-integrated 2f0(980)/(π+ +π−) ratio. The prediction from the canonical statistical hadronisation model assuming a zero total strangeness content of f0(980) is consistent with the data within 1.9σ and is the closest to the data. The results provide an essential reference for future measurements of the particle yield and nuclear modification in p–Pb and Pb–Pb collisions, which have been proposed to be instrumental to probe the elusive nature and quark composition of the f0(980) scalar meson.

AB - The measurement of the production of f0(980) in inelastic pp collisions at s=5.02 TeV is presented. This is the first reported measurement of inclusive f0(980) yield at LHC energies. The production is measured at midrapidity, |y|<0.5, in a wide transverse momentum range, 0T<16 GeV/c, by reconstructing the resonance in the f0(980) →π+π− hadronic decay channel using the ALICE detector. The pT-differential yields are compared to those of pions, protons and ϕ mesons as well as to predictions from the HERWIG 7.2 QCD-inspired Monte Carlo event generator and calculations from a coalescence model that uses the AMPT model as an input. The ratio of the pT-integrated yield of f0(980) relative to pions is compared to measurements in e+e− and pp collisions at lower energies and predictions from statistical hadronisation models and HERWIG 7.2. A mild collision energy dependence of the f0(980) to pion production is observed in pp collisions from SPS to LHC energies. All considered models underpredict the pT-integrated 2f0(980)/(π+ +π−) ratio. The prediction from the canonical statistical hadronisation model assuming a zero total strangeness content of f0(980) is consistent with the data within 1.9σ and is the closest to the data. The results provide an essential reference for future measurements of the particle yield and nuclear modification in p–Pb and Pb–Pb collisions, which have been proposed to be instrumental to probe the elusive nature and quark composition of the f0(980) scalar meson.

UR - https://www.scopus.com/pages/publications/85173068301

U2 - 10.1016/j.physletb.2022.137644

DO - 10.1016/j.physletb.2022.137644

M3 - Article

AN - SCOPUS:85173068301

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 - 137644

ER -

f₀(980) production in inelastic pp collisions at s = 5.02 TeV

Abstract

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