Transverse Transition Form Factors from the Nucleon to Nucleonic Excitation States△(1232), N*(1535)

来源 :理论物理通讯 | 被引量 : 0次 | 上传用户:shengweizheng
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Based on the [SUSF(6) O(3)]sym SUc(3) quark model, we study transverse transition form factors fromthe nucleon to nucleonic excitation states △(1232), N* (1535), and N* (1680). The transition form factors GT(Q2) arecalculated with a realistic and relativistic electromagnetic interaction. Therefore, a fit to experimental data examinesto what extent the constituent quark model is workable. The comparison between theoretical results and experimentaldata shows that the constituent quark model cannot provide a successful description of the transitions.
其他文献
采用光外差-磁旋转-速度调制吸收光谱技术, 在可见光波段范围16800~17573 cm-1, 对N2+的A 2Πu-X 2Σ+g(12,6)、(11,5)、(7,2)带和B 2Σ+u-X 2Σ+g (1,5)带进行了测量和分析,
Concentration variations of suspended solids (SS), total phosphorus (TP), dissolved total phosphorus (DTP), dissolved reactive phosphorus (SRP), and algae avail
The copolymerization of DL-LA and 3-BMG was carried out in bulk with stannous 2-ethylhexanoate as the catalyst. A series of copolymers with pendant protected gr
We have calculated the orbital parameters for 90 stars in Chen et al. and updated the kinematic data for stars in Edvardsson et al. by using the accurate Hippar
Transesterification reaction of lactose with divinyladipate in pyridine catalyzed by an alkaline protease from Bacillus subtilis at 50(C for 3 days gave 6(-O-vi
The complex [La2(-ox){Cr(bipy)((μ-ox)(ox)}4(H2O)6]·12.3(H2O) (C58H68.6N8O54.3Cr4La)2 1 has been obtained from the reaction of La(Ⅲ) salt with [Cr(bipy)(ox)2]
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7
The interaction between poly(methymethacrylate) (PMMA) and poly(vinyl chloride) (PVC) has been studied in dilute urea solutions of dimethylformamide (DMF) at 28
This paper presents a new efficient algorithm for clustering categorical data,Squeezer, which can produce high quality clustering results and at the same time d
Four new rod-coil diblock molecules, which had well-defined para-phenylene oligomers (PPP, from biphenyl to quinquephenyl) as rigid segments and poly(ethylene o