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

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...

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Hauptverfasser: Aaij, Roel (VerfasserIn) , Bachmann, Sebastian (VerfasserIn) , Carus, Leon (VerfasserIn) , Caspary, Rowina (VerfasserIn) , Celani, Sara (VerfasserIn) , Cocha Toapaxi, Carlos (VerfasserIn) , De Cian, Michel (VerfasserIn) , Dittmann, Lucas (VerfasserIn) , Esen, Sevda (VerfasserIn) , Glaser, Fabian (VerfasserIn) , Günther, Paul André (VerfasserIn) , Han, Xiaoxue (VerfasserIn) , Hansmann-Menzemer, Stephanie (VerfasserIn) , Herrero Gascón, Paula (VerfasserIn) , Langenbruch, Christoph (VerfasserIn) , Leverington, Blake (VerfasserIn) , Marks, Jörg (VerfasserIn) , Morgenthaler, Maurice Pierre (VerfasserIn) , Roy, Shreya (VerfasserIn) , Ruiz Diaz, Miguel (VerfasserIn) , Tat, Martin Duy (VerfasserIn) , Tuci, Giulia (VerfasserIn) , Uecker, Lennart Henning (VerfasserIn) , Unverzagt, Daniel Joachim (VerfasserIn) , Uwer, Ulrich (VerfasserIn) , Wang, Chishuai (VerfasserIn) , Witola, Lukas (VerfasserIn) , Zhao, Ya (VerfasserIn) , Zhelezov, Alexey (VerfasserIn)
Körperschaft: LHCb Collaboration (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 19 March 2025
In: Journal of high energy physics
Year: 2025, Heft: 3, Pages: 1-21
ISSN:1029-8479
DOI:10.1007/JHEP03(2025)151
Online-Zugang:Verlag, kostenfrei, Volltext: https://doi.org/10.1007/JHEP03(2025)151
Volltext
Verfasserangaben:The LHCb collaboration

MARC

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245 1 0 |a Measurement of ϕ(1020) meson production in fixed-target pNe collisions at √sNN = 68.5 GeV  |c The LHCb collaboration 
246 3 3 |a Measurement of phi (1020) meson production in fixed-target pNe collisions at square root sNN = 68.5 GeV 
264 1 |c 19 March 2025 
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500 |a The LHCb collaboration: R. Aaij, S. Bachmann, L. Carus, R. Caspary, S. Celani, C. Cocha Toapaxi, M. De Cian, L. Dittmann, S. Esen, F.C. Glaser, P.A. Günther, X. Han, S. Hansmann-Menzemer, P. Herrero Gascón, C. Langenbruch, B. Leverington, J. Marks, M.P. Morgenthaler, S.R. Roy, M. Ruiz Diaz, M.D Tat, G. Tuci, L.H. Uecker, D.J. Unverzagt, U. Uwer, C. Wang, L. Witola, Y. Zhao, A. Zhelezov [und viele weitere] 
500 |a Gesehen am 17.10.2025 
520 |a 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. 
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SRT |a LHCBCOLLABMEASUREMEN1920 

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