%0 Journal Article
%T Charmonium production in pNe collisions at √sNN=68.5 GeV
%A LHCb Collaboration (Aaij, R. et al
%A Jaimes Elles, S. J.
%A Jashal, B. K.
%A Martinez-Vidal, F.
%A Oyanguren, A.
%A Rebollo De Miguel, M.
%A Remon Alepuz, C.
%A Ruiz Vidal, J.
%A Sanderswood, I.
%J European Physical Journal C
%D 2023
%V 83
%N 7
%I Springer
%@ 1434-6044
%G English
%F LHCbCollaborationAaij_etal2023
%O WOS:001062444500007
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=5821), last updated on Wed, 10 Apr 2024 12:39:34 +0000
%X The measurement of charmonium states produced in proton-neon (pNe) collisions by the LHCb experiment in its fixed-target configuration is presented. The production of J/Psi and Psi(2S) mesons is studied with a beam of 2.5 TeV protons colliding on gaseous neon targets at rest, cvorresponding to a nucleon-nucleon centre-of-mass energy root(NN)-N-s = 68.5GeV. The data sample corresponds to an integrated luminosity of 21.7 +/- 1.4 nb(-1). The J/Psi and Psi(2S) hadrons are reconstructed in mu(+) mu(-) final states. The J/Psi production cross-section per target nucleon in the centre-of-mass rapidity range y* is an element of [-2.29, 0] is found to be 506 +/- 8 +/- 46 nb/nucleon. The ratio of J/Psi and D-0 cross-sections is evaluated to (1.06 +/- 0.02 +/- 0.09)%. The Psi(2S) to J/Psi relative production rate is found to be (1.67 +/- 0.27 +/- 0.10)% in good agreement with other measurements involving beam and target nuclei of similar sizes.
%R 10.1140/epjc/s10052-023-11608-6
%U https://arxiv.org/abs/2211.11645
%U https://doi.org/10.1140/epjc/s10052-023-11608-6
%P 625 - 11pp