%0 Journal Article
%T Measurement of chi(c1) (3872) production in proton-proton collisions at root s=8 and 13 TeV
%A LHCb Collaboration (Aaij, R. et al
%A Jashal, B. K.
%A Martinez-Vidal, F.
%A Oyanguren, A.
%A Remon Alepuz, C.
%A Ruiz Vidal, J.
%J Journal of High Energy Physics
%D 2022
%V 01
%N 1
%I Springer
%@ 1029-8479
%G English
%F LHCbCollaborationAaij_etal2022
%O WOS:000749197000001
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=5099), last updated on Wed, 09 Feb 2022 16:27:28 +0000
%X The production cross-section of the chi(c1)(3872) state relative to the psi(2S) meson is measured using proton-proton collision data collected with the LHCb experiment at centre-of-mass energies of root s = 8 and 13 TeV, corresponding to integrated luminosities of 2.0 and 5.4 fb(-1), respectively. The two mesons are reconstructed in the J/psi pi(+) pi(-) final state. The ratios of the prompt and nonprompt chi(c1)(3872) to psi(2S) production cross-sections are measured as a function of transverse momentum, p(T), and rapidity, y, of the chi(c1)(3872) and psi(2S) states, in the kinematic range 4 < p(T) < 20 GeV/c and 2.0 < y < 4.5. The prompt ratio is found to increase with pT , independently of y. For the prompt component, the double ratio of the chi(c1)(3872) and psi(2S) production cross-sections between 13 and 8 TeV is observed to be consistent with unity, independent of p(T) and centre-of-mass energy.
%K Hadron-Hadron Scattering
%R 10.1007/JHEP01(2022)131
%U https://arxiv.org/abs/2109.07360
%U https://doi.org/10.1007/JHEP01(2022)131
%P 131-27pp