中国科学院理论物理研究所机构知识库
Advanced  
ITP OpenIR  > 理论物理所1978-2010年知识产出  > 期刊论文
题名: Large component QCD and theoretical framework of heavy quark effective field theory
作者: Wu, Yue-Liang
刊名: INTERNATIONAL JOURNAL OF MODERN PHYSICS A
出版日期: 2006
卷号: 21, 期号:28-29, 页码:5743-5792
关键词: CB-VERTICAL-BAR ;  BOTTOM HADRON DECAYS ;  V-UB ;  FORM-FACTORS ;  MATRIX-ELEMENTS ;  HQEFT ;  MESONS ;  RENORMALIZATION ;  TRANSITIONS ;  CONSTANTS
学科分类: Physics
通讯作者: Wu, YL , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
部门归属: Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: Based on a large component QCD derived directly from full QCD by integrating over the small components of quark fields with vertical bar p vertical bar < E + m(Q), an alternative quantization procedure is adopted to establish a basic theoretical framework of heavy quark effective field theory (HQEFT) in the sense of effective quantum field theory. The procedure concerns quantum generators of Poincare group, Hilbert and Fock space, anticommutations and velocity superselection rule, propagator and Feynman rules, finite mass corrections, trivialization of gluon couplings and renormalization of Wilson loop. The Lorentz invariance and discrete symmetries in HQEFT are explicitly illustrated. Some new symmetries in the infinite mass limit are discussed. Weak transition matrix elements and masses of hadrons in HQEFT are well defined to display a manifest spin-flavor symmetry and 1/m(Q) corrections. A simple trace formulation approach is explicitly demonstrated by using LSZ reduction formula in HQEFT, and shown to be very useful for parametrizing the transition form factors via 1/m(Q) expansion. As the heavy quark and antiquark fields in HQEFT are treated on the same footing in a fully symmetric way, the quark-antiquark coupling terms naturally appear and play important roles for simplifying the structure of transition matrix elements, and for understanding the introduction of "dressed heavy quark"-hadron duality. In the case that the "longitudinal" and "transverse" residual momenta of heavy quark are at the same order of power counting, HQEFT provides a consistent approach for systematically analyzing heavy quark expansion in terms of 1/m(Q). Some interesting features in applications of HQEFT to heavy hadron systems are briefly outlined.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000243202400003
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5854
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
Large component QCD and theoretical framework of heavy quark effective field theory.pdf(499KB)----开放获取View Download

Recommended Citation:
Wu, Yue-Liang. Large component QCD and theoretical framework of heavy quark effective field theory[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS A,2006,21(28-29):5743-5792.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Wu, Yue-Liang]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Wu, Yue-Liang]‘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 
文件名: Large component QCD and theoretical framework of heavy quark effective field theory.pdf
格式: Adobe PDF
此文件暂不支持浏览
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 © 2007-2017  中国科学院理论物理研究所 - Feedback
Powered by CSpace