%0 Journal Article
%T Open charm production and asymmetry in pNe collisions at √s_NN =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 6
%I Springer
%@ 1434-6044
%G English
%F LHCbCollaborationAaij_etal2023
%O WOS:001068182400003
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=5824), last updated on Wed, 10 Apr 2024 12:39:41 +0000
%X A measurement of D-0 meson production by the LHCb experiment in its fixed-target configuration is presented. The production of D-0 mesons is studied with a beam of 2.5 TeV protons colliding on a gaseous neon target at rest, corresponding to a nucleon-nucleon centre-of-mass energy of root s(NN) = 68.5 GeV. The sum of the D-0 and (D-0) over bar production cross-section in pNe collisions in the centre-of-mass rapidity range y(star) is an element of[-2.29, 0] is found to be sigma(y star is an element of[-2.29, 0])(D0) = 48.2 +/- 0.3 +/- 4.5 μb/nucleon where the first uncertainty is statistical and the second is systematic. The D-0 – (D-0) over bar production asymmetry is also evaluated and suggests a trend towards negative values at large negative y(star). The considered models do not account precisely for all the features observed in the LHCb data, but theoretical predictions including 1% intrinsic charm and 10% recombination contributions better describe the data than the other models considered.
%R 10.1140/epjc/s10052-023-11641-5
%U https://arxiv.org/abs/2211.11633
%U https://doi.org/10.1140/epjc/s10052-023-11641-5
%P 541 - 11pp