TY  - JOUR
AU  - Molina, R.
AU  - Xiao, C. W.
AU  - Oset, E.
PY  - 2012
DA  - 2012//
TI  - J/psi reaction mechanisms and suppression in the nuclear medium
T2  - Phys. Rev. C
JO  - Physical Review C
SP  - 014604
EP  - 9pp
VL  - 86
IS  - 1
PB  - Amer Physical Soc
AB  - 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.
SN  - 0556-2813
UR  - http://arxiv.org/abs/1203.0979
UR  - https://doi.org/10.1103/PhysRevC.86.014604
DO  - 10.1103/PhysRevC.86.014604
LA  - English
N1  - WOS:000306191500005
ID  - Molina_etal2012
ER  -