Measurement of ϕ(1020) meson production in fixed-target pNe collisions at √sNN= 68.5 GeV

LHCb Collaboration; Roel Aaij; Marco Adinolfi; Jake Amey; Jozie Cottee Meldrum; Zahra Ghorbanimoghaddam; Richard G S Lane; Alex M Marshall; Camille A Normand; Konstantinos A.  Petridis; Jonas H Rademacker; Jake Reich; Anatoly Solomin; Jaap J Velthuis; Rui Wang; Federica Fabiano; et al

doi:10.1007/JHEP03(2025)151

Measurement of ϕ(1020) meson production in fixed-target pNe collisions at √s_NN= 68.5 GeV

LHCb Collaboration, Roel Aaij, Marco Adinolfi, Jake Amey, Jozie Cottee Meldrum, Zahra Ghorbanimoghaddam, Richard G S Lane, Alex M Marshall, Camille A Normand, Konstantinos A. Petridis, Jonas H Rademacker, Jake Reich, Anatoly Solomin, Jaap J Velthuis, Rui Wang, Federica Fabiano^*, et al

^*Corresponding author for this work

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

Abstract

The first measurement of ϕ(1020) meson production in fixed-target pNe collisions at √s_NN = 68.5 GeV is presented. The ϕ(1020) mesons are reconstructed in their K⁺K⁻ decay in a data sample consisting of proton collisions on neon nuclei at rest, corresponding to an integrated luminosity of 21.7 ± 1.4 nb⁻¹, collected by the LHCb detector at CERN. The ϕ(1020) production cross-section in the centre-of-mass rapidity range of −1.8 < y* < 0 and transverse momentum range of 800 < pT < 6500 MeV/c is found to be σ = 182.7 ± 2.7 (stat.) ± 14.1 (syst) μb/nucleon. A double-differential measurement of the cross-section is also provided in four regions of rapidity and six regions of transverse momentum of the ϕ(1020) meson and compared with the predictions from Pythia and EPOS4, which are found to underestimate the experimental values.

Original language	English
Article number	151
Number of pages	21
Journal	Journal of High Energy Physics
Volume	2025
DOIs	https://doi.org/10.1007/JHEP03(2025)151
Publication status	Published - 19 Mar 2025

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LHCb Collaboration, Aaij, R., Adinolfi, M., Amey, J., Cottee Meldrum, J., Ghorbanimoghaddam, Z., Lane, R. G. S., Marshall, A. M., Normand, C. A., Petridis, K. A., Rademacker, J. H., Reich, J., Solomin, A., Velthuis, J. J., Wang, R., Fabiano, F., & et al (2025). Measurement of ϕ(1020) meson production in fixed-target pNe collisions at √s_NN= 68.5 GeV. Journal of High Energy Physics, 2025, Article 151. https://doi.org/10.1007/JHEP03(2025)151

@article{d941564d456e4f4a80decef7a14ca0cc,

title = "Measurement of ϕ(1020) meson production in fixed-target pNe collisions at √sNN= 68.5 GeV",

abstract = "The first measurement of ϕ(1020) meson production in fixed-target pNe collisions at √sNN = 68.5 GeV is presented. The ϕ(1020) mesons are reconstructed in their K+K− decay in a data sample consisting of proton collisions on neon nuclei at rest, corresponding to an integrated luminosity of 21.7 ± 1.4 nb−1, collected by the LHCb detector at CERN. The ϕ(1020) production cross-section in the centre-of-mass rapidity range of −1.8 < y* < 0 and transverse momentum range of 800 < pT < 6500 MeV/c is found to be σ = 182.7 ± 2.7 (stat.) ± 14.1 (syst) μb/nucleon. A double-differential measurement of the cross-section is also provided in four regions of rapidity and six regions of transverse momentum of the ϕ(1020) meson and compared with the predictions from Pythia and EPOS4, which are found to underestimate the experimental values.",

author = "{LHCb Collaboration} and Roel Aaij and Marco Adinolfi and Jake Amey and {Cottee Meldrum}, Jozie and Zahra Ghorbanimoghaddam and Lane, {Richard G S} and Marshall, {Alex M} and Normand, {Camille A} and Petridis, {Konstantinos A.} and Rademacker, {Jonas H} and Jake Reich and Anatoly Solomin and Velthuis, {Jaap J} and Rui Wang and Federica Fabiano and {et al}",

year = "2025",

month = mar,

day = "19",

doi = "10.1007/JHEP03(2025)151",

language = "English",

volume = "2025",

journal = "Journal of High Energy Physics",

issn = "1029-8479",

publisher = "Springer Verlag",

}

LHCb Collaboration, Aaij, R, Adinolfi, M, Amey, J, Cottee Meldrum, J , Ghorbanimoghaddam, Z, Lane, RGS, Marshall, AM , Normand, CA , Petridis, KA , Rademacker, JH , Reich, J , Solomin, A , Velthuis, JJ, Wang, R, Fabiano, F & et al 2025, 'Measurement of ϕ(1020) meson production in fixed-target pNe collisions at √s_NN= 68.5 GeV', Journal of High Energy Physics, vol. 2025, 151. https://doi.org/10.1007/JHEP03(2025)151

TY - JOUR

T1 - Measurement of ϕ(1020) meson production in fixed-target pNe collisions at √sNN= 68.5 GeV

AU - LHCb Collaboration

AU - Aaij, Roel

AU - Adinolfi, Marco

AU - Amey, Jake

AU - Cottee Meldrum, Jozie

AU - Ghorbanimoghaddam, Zahra

AU - Lane, Richard G S

AU - Marshall, Alex M

AU - Normand, Camille A

AU - Petridis, Konstantinos A.

AU - Rademacker, Jonas H

AU - Reich, Jake

AU - Solomin, Anatoly

AU - Velthuis, Jaap J

AU - Wang, Rui

AU - Fabiano, Federica

AU - et al,

PY - 2025/3/19

Y1 - 2025/3/19

N2 - The first measurement of ϕ(1020) meson production in fixed-target pNe collisions at √sNN = 68.5 GeV is presented. The ϕ(1020) mesons are reconstructed in their K+K− decay in a data sample consisting of proton collisions on neon nuclei at rest, corresponding to an integrated luminosity of 21.7 ± 1.4 nb−1, collected by the LHCb detector at CERN. The ϕ(1020) production cross-section in the centre-of-mass rapidity range of −1.8 < y* < 0 and transverse momentum range of 800 < pT < 6500 MeV/c is found to be σ = 182.7 ± 2.7 (stat.) ± 14.1 (syst) μb/nucleon. A double-differential measurement of the cross-section is also provided in four regions of rapidity and six regions of transverse momentum of the ϕ(1020) meson and compared with the predictions from Pythia and EPOS4, which are found to underestimate the experimental values.

AB - The first measurement of ϕ(1020) meson production in fixed-target pNe collisions at √sNN = 68.5 GeV is presented. The ϕ(1020) mesons are reconstructed in their K+K− decay in a data sample consisting of proton collisions on neon nuclei at rest, corresponding to an integrated luminosity of 21.7 ± 1.4 nb−1, collected by the LHCb detector at CERN. The ϕ(1020) production cross-section in the centre-of-mass rapidity range of −1.8 < y* < 0 and transverse momentum range of 800 < pT < 6500 MeV/c is found to be σ = 182.7 ± 2.7 (stat.) ± 14.1 (syst) μb/nucleon. A double-differential measurement of the cross-section is also provided in four regions of rapidity and six regions of transverse momentum of the ϕ(1020) meson and compared with the predictions from Pythia and EPOS4, which are found to underestimate the experimental values.

U2 - 10.1007/JHEP03(2025)151

DO - 10.1007/JHEP03(2025)151

M3 - Article (Academic Journal)

SN - 1029-8479

VL - 2025

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

M1 - 151

ER -