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电子-离子对撞机上开展核子及其激发态研究的建议
  • ISSN号：1007-4627
  • 期刊名称：《原子核物理评论》
  • 时间：0
  • 分类：O572.214[理学—粒子物理与原子核物理;理学—物理]
  • 作者机构：[1]中国科学院近代物理研究所, [2]中国科学院理论物理研究所,理论物理国家重点实验室
  • 相关基金：国家重点基础研究发展计划项目(973计划)(2014CB845406);国家自然科学基金资助项目(11105126,11275235,11035006,11175220);中国科学院百人计划项目(Y101020BR0)~~
作者： 谢聚军[1,2], 何军[1,2], 陈旭荣[1], 邹冰松[2], 徐瑚珊[1], 肖国青[1]
关键词： 核子及其激发态, 电子-离子对撞机, 五夸克图像
中文摘要：

核子及其激发态性质研究一直是中高能核物理的一个重要研究领域。然而,到目前为止,对核子及其激发态内部结构的了解还处在初级阶段。首先介绍了核子及其激发态研究现状,指出了三夸克模型在描述核子特别是核子激发态内部结构方面存在很大的缺陷。为解决传统三夸克模型的不足,有一种新的观点认为虽然独立的五夸克态不存在,但是核子及其共振态中存在可观的五夸克激发。这种五夸克图像提供了一个描述核子内部结构的新见解,给出了与经典三夸克图像相当不同的核子激发态谱预言,还有待实验检验。目前国内外正在论证的电子–离子对撞机(EIC)将是研究核子结构下一代最重要的加速器装置,被视为"超级电子显微镜"。由于EIC有较高的能量和亮度,特别是低本底等优势,可以开展核子及其激发态性质的研究以及新强子态研究。

英文摘要：

The study of the properties of the nucleon and nucleon resonances is an important field in the high and intermediate energy nuclear physics, however, until now, our understanding about the structure of the nucleon and nucleon resonances is still in its infancy. We give a brief review on the current researches of the nucleon and nucleon resonances, and point out that the classical quark model can not successfully describe the structure of the nucleon and nucleon resonances. For doing this, a new idea claims that although the five-quark state does not exist, but, there could be significant five-quark components in the nucleon and nucleon resonances. This five-quark configure gives different predictions for the nucleon resonances which will be tested by the future experiments. Now, the proposed Electron-Ion Collider (EIC) will be the most important accelerator installation for studying the nucleon structure, and it is called ”super-electronic-microscope”. Because of the high energy and luminosity, and also low background, we can study the properties of the nucleon and nucleon resonances and new hadron states on EIC.

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期刊信息
  • 《原子核物理评论》
  • 中国科技核心期刊
  • 主管单位:中国科学院
  • 主办单位:中国科学院近代物理研究所 中国核物理学会
  • 主编：肖国青
  • 地址：兰州市31号信箱
  • 邮编：730000
  • 邮箱：npr@impcas.ac.cn
  • 电话：0931-4969371/4
  • 国际标准刊号：ISSN：1007-4627
  • 国内统一刊号：ISSN：62-1131/O4
  • 邮发代号:54-183
  • 获奖情况:
  • 2009年1月获甘肃省优秀期刊奖
  • 国内外数据库收录:
  • 美国化学文摘（网络版）,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）,中国北大核心期刊（2000版）
  • 被引量:1602