搜索结果: 1-9 共查到“理学 JLab”相关记录9条 . 查询时间(0.093 秒)
美国JLab实验室Hutton博士访问近物所（图）
美国JLab实验室 Hutton博士 近物所
2013/1/31
2013年1月26日至29日，美国JLab实验室（Thomas Jefferson National Accelerator Facility）副主任Andrew Hutton博士访问中科院近代物理研究所。近物所党委书记、副所长赵红卫向Hutton博士介绍了研究所的科研情况，陪同Hutton博士参观了兰州重离子加速器冷却储存环、离子源、超导实验室、重离子治癌终端等实验装置。双方讨论了近物所与JLa...
Results from the N* program at JLab 。
Jefferson国家实验室（JLab）简介
CEBAF连续束流 JLab物理课题 CEBAF能量升级
2009/11/30
简要介绍了JLab的一般情况、JLab高性能加速器CEBAF（Continue Electron Beam Accelerator Facility）和3个实验大厅的主要实验设备。着重介绍了CEBAF的连续束流与实验大厅的高密靶及高精度谱仪结合所得到的高精度实验结果，介绍了JLab实验室要解决的根本问题、相应的物理课题以及中国组正在参与数据分析和正在做的实验。最后简要介绍了CEBAF升级至12 G...
Nucleon transition form factors at JLab: status and outlook
baryon structure strong degrees of freedom
2009/11/17
The measurements of exclusive single-meson and double-pion electro-production cross sections off the proton to study nucleon resonances will be extended to higher momentum transfers with the CLAS12 de...
Nitrogen dilution effect for small angle GDH experiment in JLab Hall-A
GDH sum rule dilution factor correction cross section asymmetry
2009/8/14
In the GDH sum rule measurement in JLab Hall-A, to obtain the cross section of electron scattering on polarized 3He and its asymmetry in different helicity states, the dilution effect from unpolarized...
JLab Hall-A上小角度GDH实验中的粒子鉴别及其效率
GDH求和规则 粒子鉴别 效率 优化
2008/1/29
在JLab的A大厅上的小角度GDH实验中, 因为散射截面及截面不对称度的测量需要干净的电子样本和足够的事例统计, 径迹在簇射量能器和气体阈契仑柯夫探测器理的信息被用来完成粒子鉴别的任务. 通过优化粒子在两种探测器里的信息筛选条件, 可以得到较高的电子接收效率和π的去除能力. 因为探测器的分辨能力与粒子的动量等运动学参量有关, 所以对于不同的数据的粒子鉴别条件分别进行了优化, 并得到了对应的电子接收...
JLab: Probing Hadronic Physics with Electrons and Photons
JLab Hadronic Physics Electrons and Photons
2010/10/25
Precision measurements of the structure of nucleons and nuclei in the regime of strong interaction QCD are now possible with the availability of high current polarized electron beams, polarized target...
A Polarized Target Measurement of the Electric Form Factor of the Neutron at JLab
A Polarized Target Measurement the Electric Form Factor the Neutron JLab
2010/10/22
The experiment E93-026 at the Thomas Jefferson National Accelerator Facility (JLab) determined the electric form factor of the neutron GnE through quasielastic ~d(~e; e0n)p scattering using a longitud...
Confinement and Exotic Meson Spectroscopy at 12GeV JLAB
Confinement and Exotic Meson Spectroscopy 12GeV JLAB
2010/10/28
Phenomenology of gluonic excitations and possibilities for searches of exotic mesons at JLab are discussed.