%0 Journal Article
%T J/psi reaction mechanisms and suppression in the nuclear medium
%A Molina, R.
%A Xiao, C. W.
%A Oset, E.
%J Physical Review C
%D 2012
%V 86
%N 1
%I Amer Physical Soc
%@ 0556-2813
%G English
%F Molina_etal2012
%O WOS:000306191500005
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=1100), last updated on Thu, 09 Aug 2012 17:48:09 +0000
%X Recent studies of the interaction of vector mesons with nuclei make possible and opportune the study of the interaction of the J/psi with nuclei and the investigation of the origin of the J/psi suppression in its propagation thorough a nuclear medium. We observe that the transition of J/psi N to VN with V being a light vector, rho, omega, phi, together with the inelastic channels, J/psi N -> (D) over bar Lambda(c) and J/psi N -> (D) over bar Sigma(c), leads to a particular shape of the inelastic cross section. Analogously, we consider the mechanisms where the exchanged D collides with a nucleon and gives pi Lambda(c) or pi Sigma(c). The cross section has a peak around root s = 4415 MeV, where the J/psi N couples to a resonance predicted recently. We study the transparency ratio for electron-induced J/psi production in nuclei at about 10 GeV and find that 30-35% of the J/psi produced in heavy nuclei are absorbed inside the nucleus. This ratio is in line with depletions of J/psi through matter observed in other reactions.
%R 10.1103/PhysRevC.86.014604
%U http://arxiv.org/abs/1203.0979
%U https://doi.org/10.1103/PhysRevC.86.014604
%P 014604-9pp