Charmonium-Nuclear Bound States

• 作者: Chen, Kezhong Chiang, Huanching Zhang, Weifeng
• 来源期刊: 原子核物理：英文版
• 学科: 物理学
• 关键词: 一价 上口
• 年，卷（期）: 1994,（1）
• 页码范围: 30-33
• 页数: 4页
• 分类号: O4

摘要

【正】 Brodsky et al.pointed out that the QCD Van de Waals interaction due to multiple-gluon exchange provides a new kind of attractive nuclear force capable of binding heavyquarkonia to nuclei.In QCD,a heavy-quarkonium(Q_c_c)state such as η_c(2980)interacts witha nucleon through multiple-gluon exchange.This is the QCD analog of the attractive QED Varde Waals Potential.Unlike QED,the potential fails an inverse power law at large distances be-cause of the absence of zero-mass gluonium states.On the other hand,(Q_c_c)and nucleons