Pair production of quarkonia and electroweak bosons from double-parton scatterings in nuclear collisions at the LHC

Cross sections for the concurrent production of pairs of quarkonia (J/psi, Upsilon) and/or W, Z gauge bosons from double-parton scatterings (DPS) in high-energy proton nucleus and nucleus nucleus collisions at the LHC are calculated. The estimates are based on next-to-leading-order perturbative QCD predictions, including nuclear modifications of the parton densities, for the corresponding single-scattering cross sections. Expected event rates for J/psi + J/psi, J/psi + Upsilon, J /psi Z, Y + Y, Y + W, Y + Z, and samesign W+W production in their ((di)leptonic decay modes, after typical acceptance and efficiency losses, are given for p-Pb and Pb-Pb collisions. (C) 2014 Elsevier B.V. All rights reserved.