中国科学院紫金山天文台机构知识库
Advanced  
PMO OpenIR  > 暗物质和空间天文实验室  > 期刊论文
题名: Chiral susceptibility and the scalar Ward identity
作者: Chang, Lei2; Liu, Yu-xin3, 4, 5; Roberts, Craig D.1, 6; Shi, Yuan-mei7; Sun, Wei-min7, 8; Zong, Hong-shi7, 8
刊名: PHYSICAL REVIEW C
出版日期: 2009-03-01
卷号: 79, 期号:3
DOI: 10.1103/PhysRevC.79.035209
文章类型: Article
英文摘要: The chiral susceptibility is given by the scalar vacuum polarization at zero total momentum. This follows directly from the expression for the vacuum quark condensate so long as a nonperturbative symmetry preserving truncation scheme is employed. For QCD in-vacuum the susceptibility can rigorously be defined via a Pauli-Villars regularization procedure. Owing to the scalar Ward identity, irrespective of the form or Ansatz for the kernel of the gap equation, the consistent scalar vertex at zero total momentum can automatically be obtained and hence the consistent susceptibility. This enables calculation of the chiral susceptibility for markedly different vertex Ansatze. For the two cases considered, the results were consistent and the minor quantitative differences easily understood. The susceptibility can be used to demarcate the domain of coupling strength within a theory upon which chiral symmetry is dynamically broken. Degenerate massless scalar and pseudoscalar bound-states appear at the critical coupling for dynamical chiral symmetry breaking.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Physics, Nuclear
研究领域[WOS]: Physics
关键词[WOS]: DYSON-SCHWINGER EQUATIONS ; QUARK BOUND-STATES ; QUANTUM CHROMODYNAMICS ; VACUUM SUSCEPTIBILITY ; SYMMETRY BREAKING ; DECAY CONSTANT ; MODEL ; QCD ; CONFINEMENT ; LATTICE
收录类别: SCI
语种: 英语
WOS记录号: WOS:000264766100057
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/15909
Appears in Collections:暗物质和空间天文实验室_期刊论文

Files in This Item:

There are no files associated with this item.


作者单位: 1.Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA
2.Inst Appl Phys & Computat Math, Beijing 100094, Peoples R China
3.Peking Univ, Dept Phys, Beijing 100871, Peoples R China
4.Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China
5.Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China
6.Univ New S Wales, Sch Phys, Sydney, NSW 2052, Australia
7.Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China
8.Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210093, Peoples R China
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Chang, Lei]'s Articles
[Liu, Yu-xin]'s Articles
[Roberts, Craig D.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Chang, Lei]‘s Articles
[Liu, Yu-xin]‘s Articles
[Roberts, Craig D.]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2018  中国科学院紫金山天文台 - Feedback
Powered by CSpace