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Preprint
Report number arXiv:2411.09343 ; LHCb-PAPER-2024-036 ; CERN-EP-2024-274 ; LHCB-PAPER-2024-036
Title Measurement of $\phi(1020)$ meson production in fixed-target $\textit{p}$Ne collisions at~$\sqrt{s_{NN}}$~=~68.5 GeV.
Author(s) LHCb Collaboration  Показване на всичките 1151 автора
Corporate author(s) LHCb Collaboration
Publication 2024
Imprint 20 Nov 2024
Number of pages 20
Note Submitted to JHEP
Subject category Particle Physics - Experiment ; Particle Physics - Experiment ; Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; LHCb
Keywords flavor physics ; QCD ; forward physics ; relativistic heavy ion physics ; particle and resonance production
Abstract The first measurement of $\phi(1020)$ meson production in fixed-target $p$Ne collisions at $\sqrt{s_{NN}}=68.5$ GeV is presented. The $\phi(1020)$ 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 $21.7 \pm 1.4$ nb$^{-1}$, collected by the LHCb detector at CERN. The $\phi(1020)$ production cross-section in the centre-of-mass rapidity range of $-1.8< y^*<0$ and transverse momentum range of $800< p_{T} <6500$ MeV/$c$ is found to be $\sigma=182.7\pm2.7 \text{(stat.)}\pm14.1 \text{(syst)}$ $\mu$b/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 $\phi(1020)$ meson and compared with the predictions from Pythia and EPOS4, which are found to underestimate the experimental values.
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Copyright/License Preprint: © 2024-2025 CERN (License: CC-BY-4.0)
Submitted by [email protected]



 


 Записът е създаден на 2024-11-20, последна промяна на 2024-12-12