标题： RHIC和LHC上阴影效应对魅夸克和底夸克产生的影响 显示英文标题

标题： Effect of Shadowing on Charm and Bottom Production at RHIC and LHC

摘要： 我们研究核阴影效应对LHC和RHIC能量下重夸克/反夸克对产生的影响。 虽然我们在RHIC和LHC能量下重夸克的产生中没有发现任何定性差异，但在高能下， charm 和 bottom 夸克的产生截面显著减少。 诸如 J/Psi 的束缚态的出现由于 charm 产生截面的减少而被抑制。 因此，J/Psi 的抑制只能谨慎地用作夸克胶子等离子体的间接标志。 显示英文摘要

摘要： We study the influence of nuclear shadowing on the production of heavy quark/anti-quark pair at LHC and RHIC energies. While we do not find any qualitative difference in the production of heavy quarks at RHIC and LHC, a significant reduction in the production cross section of charm and bottom quarks is apparent at high energies. The occurence of bound states such as J/Psi is suppressed by this reduction in charm production cross section. Therefore, J/Psi suppression has only to be used with reservations as an indirect signature of the quark gluon plasma.