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Roberts, HLL; Bashir, A; Gutierrez-Guerrero, LX; Roberts, CD; Wilson, DJ; Roberts, HLL (reprint author), Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
pi and rho mesons, and their diquark partners, from a contact interaction
发表期刊PHYSICAL REVIEW C
语种英语
关键词Electromagnetic Form-factors Dyson-schwinger Equations Chiral-symmetry Breaking Anomalous Gamma Bound-states Qcd Model Light Nucleon Masses
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.
2011
ISSN0556-2813
卷号83期号:6页码:65206
学科领域Physics
收录类别SCI
项目资助者US Department of Energy, Office of Nuclear Physics [DE-AC02-06CH11357]; Forschungszentrum Julich GmbH; Department of Energy ; US Department of Energy, Office of Nuclear Physics [DE-AC02-06CH11357]; Forschungszentrum Julich GmbH; Department of Energy ; US Department of Energy, Office of Nuclear Physics [DE-AC02-06CH11357]; Forschungszentrum Julich GmbH; Department of Energy ; US Department of Energy, Office of Nuclear Physics [DE-AC02-06CH11357]; Forschungszentrum Julich GmbH; Department of Energy
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被引频次:76[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/14330
专题理论物理所科研产出_SCI论文
通讯作者Roberts, HLL (reprint author), Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
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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,&Roberts, HLL .(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.
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