Study on form factors at effective vertices

	Study on form factors at effective vertices
	Yu, YM; Ke, HW; Ding, YB; Guo, XH; Jin, HY; Li, XQ; Shen, PN; Wan, GL; Shen PN(沈彭年)
刊名	INTERNATIONAL JOURNAL OF MODERN PHYSICS A
	2008
卷号	23 期号:19 页码:2975-2990
关键词	diquark form factor effective vertices
通讯作者	[Yu, Yan-Ming ; Ke, Hong-Wei ; Li, Xue-Qian] Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China ; [Ding, Yi-Bing] Chinese Acad Sci, Grad Sch, Dept Phys, Beijing 100049, Peoples R China ; [Guo, Xin-Heng] Beijing Normal Univ, Inst Low Energy Nucl Phys, Beijing 100875, Peoples R China ; [Jin, Hong-Ying] Zhejiang Univ, Inst Modern Phys, Hangzhou 310027, Peoples R China ; [Shen, Peng-Nian] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China ; [Wan, Guo-Li] Harbin Inst Technol, Dept Phys, Harbin 150001, Peoples R China
英文摘要	The diquark structure in baryons is commonly accepted as a reasonable approximation which can much simplify the picture of baryons and reduce the length of calculations. However, a diquark by no means is a point-like particle, even though it is treated as a whole object. Therefore, to apply the diquark picture to phenomenological calculations, at the effective vertices for the diquark-gauge-boson interactions, suitable form factors must be introduced to compensate the effects caused by the inner structure of the diquark. It is crucial to derive the appropriate form factors for various interactions. In this work, we use the Bethe-Salpeter equation to derive such form factors and numerically evaluate their magnitudes. Our results not only qualitatively, but also quantitatively confirm the form factors phenomenologically introduced in literature.
学科主题	Physics
类目[WOS]	Physics, Nuclear ; Physics, Particles & Fields
研究领域[WOS]	Physics
原文出处	SCI
语种	英语
WOS记录号	WOS:000258778900007
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/239850]
专题	高能物理研究所_理论物理室高能物理研究所_粒子天体物理中心高能物理研究所_多学科研究中心
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	Yu, YM,Ke, HW,Ding, YB,et al. Study on form factors at effective vertices[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS A,2008,23(19):2975-2990.
APA	Yu, YM.,Ke, HW.,Ding, YB.,Guo, XH.,Jin, HY.,...&沈彭年.(2008).Study on form factors at effective vertices.INTERNATIONAL JOURNAL OF MODERN PHYSICS A,23(19),2975-2990.
MLA	Yu, YM,et al."Study on form factors at effective vertices".INTERNATIONAL JOURNAL OF MODERN PHYSICS A 23.19(2008):2975-2990.