pi and rho mesons, and their diquark partners, from a contact interaction

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	pi and rho mesons, and their diquark partners, from a contact interaction
	Roberts, HLL ; Bashir, A ; Gutierrez-Guerrero, LX ; Roberts, CD ; Wilson, DJ
刊名	PHYSICAL REVIEW C
	2011
卷号	83 期号:6 页码:65206
关键词	ELECTROMAGNETIC FORM-FACTORS DYSON-SCHWINGER EQUATIONS CHIRAL-SYMMETRY BREAKING ANOMALOUS GAMMA BOUND-STATES QCD MODEL LIGHT NUCLEON MASSES
ISSN号	0556-2813
通讯作者	Roberts, HLL (reprint author), Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
英文摘要	We present a unified Dyson-Schwinger equation treatment of static and electromagnetic properties of pseudoscalar and vector mesons, and scalar and axial-vector diquark correlations, based upon a vector-vector contact interaction. A basic motivation for this paper is the need to document a comparison between the electromagnetic form factors of mesons and those diquarks that play a material role in nucleon structure. A notable result, therefore, is the large degree of similarity between related meson and diquark form factors. The simplicity of the interaction enables computation of the form factors at arbitrarily large spacelike Q(2), which enables us to expose a zero in the rho-meson electric form factor at z(Q)(rho) approximate to root 6m(rho). Notably, r(rho)z(Q)(rho) approximate to r(D)z(Q)(D), where r(rho) and r(D) are, respectively, the electric radii of the rho-meson and deuteron.
学科主题	Physics
收录类别	SCI
资助信息	US Department of Energy, Office of Nuclear Physics [DE-AC02-06CH11357]; Forschungszentrum Julich GmbH; Department of Energy
原文出处	http://dx.doi.org/10.1103/PhysRevC.83.065206
语种	英语
WOS记录号	WOS:000291935600002
公开日期	2013-05-17
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/14330]
专题	理论物理研究所_理论物理所1978-2010年知识产出
推荐引用方式 GB/T 7714	Roberts, HLL,Bashir, A,Gutierrez-Guerrero, LX,et al. pi and rho mesons, and their diquark partners, from a contact interaction[J]. PHYSICAL REVIEW C,2011,83(6):65206.
APA	Roberts, HLL,Bashir, A,Gutierrez-Guerrero, LX,Roberts, CD,&Wilson, DJ.(2011).pi and rho mesons, and their diquark partners, from a contact interaction.PHYSICAL REVIEW C,83(6),65206.
MLA	Roberts, HLL,et al."pi and rho mesons, and their diquark partners, from a contact interaction".PHYSICAL REVIEW C 83.6(2011):65206.