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

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

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
Number of pages	14
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	846
DOIs	https://doi.org/10.1016/j.physletb.2022.137644
Publication status	Published - 10 Nov 2023

Access to Document

10.1016/j.physletb.2022.137644Licence: CC BY

1-s2.0-S037026932200778X-mainFinal published version, 944 KBLicence: CC BY

Cite this

@article{7c86f0c9482d4929a214addf6a9049e4,

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–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.",

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 P. Christakoglou and A. Grelli and B. Hofman and A. Isakov and Keijdener, {D. L.D.} and Kuijer, {P. G.} and Mohanty, {A. P.} and T. Peitzmann and S. Qiu and Snellings, {R. J.M.} and R. Spijkers and {van Doremalen}, {L. V.R.} and {van Leeuwen}, M. and {van Weelden}, {R. J.G.} and M. Verweij and {Correia Zanoli}, Henrique and {Pliatskas Stylianidis}, Christos",

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",

publisher = "Elsevier",

}

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 - Christakoglou, P.

AU - Grelli, A.

AU - Hofman, B.

AU - Isakov, A.

AU - Keijdener, D. L.D.

AU - Kuijer, P. G.

AU - Mohanty, A. P.

AU - Peitzmann, T.

AU - Qiu, S.

AU - Snellings, R. J.M.

AU - Spijkers, R.

AU - van Doremalen, L. V.R.

AU - van Leeuwen, M.

AU - van Weelden, R. J.G.

AU - Verweij, M.

AU - Correia Zanoli, Henrique

AU - Pliatskas Stylianidis, Christos

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 - http://www.scopus.com/inward/record.url?scp=85173068301&partnerID=8YFLogxK

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

Access to Document

Fingerprint

Cite this

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