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Progress in p-shell Λ hypernuclear spectroscopy
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作者 周书华 《Chinese Physics C》 SCIE CAS CSCD 2009年第6期497-500,共4页
The strangeness nuclear physics is an important branch of nuclear physics. The spectroscopic study of A hypernuclei has been used as a tool for investigating the A-N interaction as well as probing the nuclear interior... The strangeness nuclear physics is an important branch of nuclear physics. The spectroscopic study of A hypernuclei has been used as a tool for investigating the A-N interaction as well as probing the nuclear interior structure. In this paper some high-lights and open questions in the spectroscopic study of p-shell h hypernuclei are presented. 展开更多
关键词 HYpERNUCLEI SpECTROSCOpY p-shell
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p壳Λ超核谱学研究进展
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作者 周书华 《原子能科学技术》 EI CAS CSCD 北大核心 2009年第B12期1-5,共5页
Λ超核谱学是研究Λ-N相互作用、探索原子核内部结构和了解Λ粒子的性质在核介质中可能发生的变化的重要工具。利用电磁谱仪和γ谱仪对Λ超核的研究取得了重要成果,揭示出超核能级的一些特征,如:核心激发、Λ粒子在p壳的激发、只在超核... Λ超核谱学是研究Λ-N相互作用、探索原子核内部结构和了解Λ粒子的性质在核介质中可能发生的变化的重要工具。利用电磁谱仪和γ谱仪对Λ超核的研究取得了重要成果,揭示出超核能级的一些特征,如:核心激发、Λ粒子在p壳的激发、只在超核中发现的"真正态"等;从实验上确定了壳模型自旋相关的Λ-N相互作用参数;在7ΛLi超核中发现了由于处在0s态的Λ粒子的胶样相互作用引起的超核的收缩现象。然而,实验结果与理论计算之间还存在着某些分歧,需要进一步研究。 展开更多
关键词 Λ超核 核谱学 p
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Microscopic Calculations of Core-Polarization Effect on Inelastic Electron Scattering Form Factors for Different Parity States in (14^)
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作者 Nadia Mohammad Adeeb 《Journal of Physical Science and Application》 2012年第9期392-397,共6页
Inelastic electron scattering form factors has been calculated for different parity for the two (C3) transitions of 14^N for (5.83MeV) (f^π, T = 20) level and, (5.106MeV) (f^π, T = 30) level in the frame w... Inelastic electron scattering form factors has been calculated for different parity for the two (C3) transitions of 14^N for (5.83MeV) (f^π, T = 20) level and, (5.106MeV) (f^π, T = 30) level in the frame work of shell model. The model space wave functions are generated by using the Cohen-Kurath (CK) interaction, where 4He is assumed as a core and ten nucleons are distributed over the lp-shell which forms the model space. Core-polarization effects (CP) (the effects from outside lp-shell model space) are included through the first order perturbation theory. The core-polarization effects increase the form factor to be up near the experimental data which are not sufficient to give a good comparison with the calculating data. 展开更多
关键词 Nuclear reactions Inelastic form factors (e e') p-shell nuclei different parity states calculated first-ordercore-polarization effects.
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Analysis of total reaction cross sections for deuterons on 1p-shell-nuclei
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作者 YiDi Chen Yun Zhang +5 位作者 JianLing Lou DanYang Pang YanLin Ye Wei Liu Ying Jiang Gen Li 《Science China(Physics,Mechanics & Astronomy)》 SCIE EI CAS CSCD 2018年第11期30-35,共6页
This study aims to analyze the differential cross sections (DCSs) of elastic scattering and total reaction cross sections (TRCSs) of the loosely-bound deuteron projectile impinging on lp-shell nuclei, such as 9Be,... This study aims to analyze the differential cross sections (DCSs) of elastic scattering and total reaction cross sections (TRCSs) of the loosely-bound deuteron projectile impinging on lp-shell nuclei, such as 9Be, 12C, and 160, at incident energies ranging between 10.6 and 171 MeV using the continuum discretized coupled channel (CDCC) method. By fitting the experimental data for the DCSs and TRCSs, energy-dependent renormalization factors for the real and imaginary parts of the nucleon-nucleus optical-model potentials deduced from the studies proposed by Koning and Delaroche (KD02) and by Watson, Singh, and Segel (WSS), are obtained. It is found that with the WSS potential, which was obtained specifically for lp-shell nuclei, the CDCC calculations can simultaneously reproduce both the DCSs and the TRCSs. The results show that it is important to choose appropriate optical potentials to describe deuteron-induced reactions. 展开更多
关键词 total reaction cross sections differential cross sections DEUTERON 1p-shell nuclei
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紫外分光光度测量系统在线跟踪研究732树脂吸附对甲苯胺的行为
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作者 刘兰 丘小丽 陈炳稔 《化工时刊》 CAS 2006年第11期40-42,共3页
利用紫外—可见分光光度法跟踪观察了732树脂吸附对甲苯胺的行为;探讨了吸附剂质量,吸附温度,外加乙醇含量不同对吸附的影响。实验结果表明,732树脂吸附对甲苯胺具有非均相未反应核收缩模型的特征,且化学反应为吸附的速率控制步骤。732... 利用紫外—可见分光光度法跟踪观察了732树脂吸附对甲苯胺的行为;探讨了吸附剂质量,吸附温度,外加乙醇含量不同对吸附的影响。实验结果表明,732树脂吸附对甲苯胺具有非均相未反应核收缩模型的特征,且化学反应为吸附的速率控制步骤。732树脂吸附对甲苯胺的吸附分率和吸附速率随吸附剂质量的增大、吸附温度升高而增大;随着外加乙醇含量增大而减小。 展开更多
关键词 732树脂 对甲苯胺 缩核模型 吸附速率
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