IHEP OpenIR  > 理论物理室
Lambda Lambda interactions in finite-density QCD sum rules
Zhong XH(钟显辉); Zhong, XH; Ning, PZ
2007
发表期刊PHYSICAL REVIEW C
卷号75期号:5页码:55206
通讯作者Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China ; Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China
摘要The properties of Lambda hyperons in pure Lambda matter are studied with the finite-density quantum chromodynamics (QCD) sum rule approach. The first-order quark and gluon condensates in Lambda nuclear matter are deduced from the chiral perturbation theory. The sum-rule predictions are sensitive to the four-quark condensates, <(q) over barq >(2)(rho) and <(q) over barq >(rho)<(s) over bars >(rho), and the pi N sigma term. When <(q) over barq >(2)(rho) is nearly independent of density and <($) over barq >(rho)<(q) over bars >(rho) depends strongly on density, we can obtain weakly attractive Lambda Lambda potentials (about several MeV) in the low Lambda density region, which agrees with the information from the latest double Lambda hypernucleus experiments. The nearly no-density dependence of <(q) over barq >(2)(rho) and strong density dependence of <(q) over barq >(rho)<(s) over bars >(rho) can be explained naturally if the properties of <(q) over barq >(2)(rho) and <(q) over barq >rho <(s) over bars >(rho) are assumed to be similar to those of pi pi and (K) over barK in nuclear medium, respectively.
文章类型Article
学科领域Physics
DOI10.1103/PhysRevC.75.055206
研究领域[WOS]Physics
URL查看原文
语种英语
WOS类目Physics, Nuclear
WOS记录号WOS:000246891100071
引用统计
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240692
专题理论物理室
作者单位中国科学院高能物理研究所
推荐引用方式
GB/T 7714
Zhong XH,Zhong, XH,Ning, PZ. Lambda Lambda interactions in finite-density QCD sum rules[J]. PHYSICAL REVIEW C,2007,75(5):55206.
APA 钟显辉,Zhong, XH,&Ning, PZ.(2007).Lambda Lambda interactions in finite-density QCD sum rules.PHYSICAL REVIEW C,75(5),55206.
MLA 钟显辉,et al."Lambda Lambda interactions in finite-density QCD sum rules".PHYSICAL REVIEW C 75.5(2007):55206.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
9218.pdf(514KB)期刊论文作者接受稿限制开放CC BY-NC-SA请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[钟显辉]的文章
[Zhong, XH]的文章
[Ning, PZ]的文章
百度学术
百度学术中相似的文章
[钟显辉]的文章
[Zhong, XH]的文章
[Ning, PZ]的文章
必应学术
必应学术中相似的文章
[钟显辉]的文章
[Zhong, XH]的文章
[Ning, PZ]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。