搜索结果: 1-6 共查到“CLAS”相关记录6条 . 查询时间(0.05 秒)
A new beam asymmetry measurement from pion photoproduction on the neutron using CLAS
beam asymmetry photonuclear photoproduction neutron pion
2009/11/24
We present a preliminary analysis of the photon beam asymmetry observable
(Σ) from the photoproduction reaction channel γn→pπ－ in the invariant mass range 1.6—2.3 GeV. The measurement was obtained us...
Single π0 electro-production in the resonance region with CLAS
nucleon resonances electromagnetic transition form factors nucleon structure
2009/11/24
We report the analysis status of single π0 electroproduction in the resonance region to study the electromagnetic excitation of the nucleon resonances. The study is aimed at understanding of the inter...
CLAS+FROST: new generation of photoproduction experiments at Jefferson Lab.
photoproduction double polarization baryon resonance
2009/11/17
A large part of the experimental program in Hall B of the Jefferson Lab is dedicated to baryon spectroscopy. Photoproduction experiments are essential part of this program. CEBAF Large Acceptance Spec...
Recent results on nucleon resonance electrocouplings from the studies of π+π－p electroproduction with the CLAS detector
nucleon resonances electromagnetic form factors nucleon structure
2009/11/17
Recent results on nucleon resonance studies in π+π－p electro- production off protons with the CLAS detector are presented. The analysis of CLAS data allowed us to determine all essential contributing ...
CLAs制备及其稳定性的实验研究
胶质液泡 稳定性 表面活性剂
2009/11/16
制备了预分散溶剂萃取所需的胶质液泡(CLAs)，探讨了溶质的存在对CLAs稳定性的影响. 结果发现，在表面活性剂浓度相同时[离子型表面活性剂浓度为1 g/L，非离子型表面活性剂浓度为1.0%(j)]，溶质(苯甲酸)的存在对CLAs稳定性的影响很大，许多在没有溶质存在的条件下能够制备得到稳定的CLAs的表面活性剂组合，在加入了溶质后，不能再制备得到稳定的CLAs. 对于在溶质存在的条件下仍能制备得到...
The study of the baryon spectrum is a fundamental part of the scientific program in Hall B at Jefferson Laboratory. The so called N* program indeed concerns the measurement of the electromagnetic prod...