Few Nucleon System Study by Hign Energy Electron Scattering.

少数体核的电子散射由于其波函数已被很好地理解，在研究核动力学和核结构方面起着重要的作用。必须考虑到高能电子增加的动量转移，中介体交换电流（MEC）和delta等压线的影响，相对论效应，夸克-胶子自由度。我们在麻省理工学院贝茨实验室（1 GeV电子设备）提出了^3He （e, e‘）和d （e, e’p）的弹性磁测量作为国际科学研究计划。^3He （e, e'）项目：本实验的目的是测量^3He在动量传递范围Q^2=31^-54fm^<-2>的磁离因子。由于预计截面小至10^<-40>cm^2/sr，因此需要良好的背景抑制和厚目标。循环气体^3He靶在50个原子和22 K的条件下由麻省理工学院建造，并于1994年成功地进行了测试。特殊的电子低钡…更多的背景已被容纳。试运行已于1994年进行，试验将于1995年后期进行。d （e, e'p）项目：本实验的目的是通过测量低激发能(3 （E_<np>(12 MeV)）和高动量传递(7.5 （q_<mu>^2(10 fm^<-2>)）下的d （e, e'p）符合截面（sigma_L+sigma_T和sigma_<LT>），研究相对论效应和介子交换电流在氘核中的贡献。液态氘靶电池在日本完成，采用巴塞尔循环冷却系统的试验在麻省理工学院贝茨分校成功完成。将在1995年底进行利用外空项目和外空项目的实验5.3。美国麻省大学ross Hicks教授应邀赴日本访问（1995.1.15-1995.2.3）。(1)麻省理工学院的项目：我们在静冈大学和东北大学讨论了^3He （e, e‘）和d （e, e’p）。关注^<10 b> B电子散射结果，讨论是在大阪大学与佐藤博士和大坪教授进行的。(2)美国CEBAF的未来项目（4 GeV连续电子设备）：在东京大学（INS）、东北大学、大阪大学、rcnp大阪大学和静冈大学举办了关于物理项目（马萨诸塞大学和静冈大学）的研讨会，这些讲座非常成功，对日本核物理学家在高能连续电子的优秀物理学科上产生了强烈的影响。少

Electron scattering from few body nuclei plays an important role in studying nuclear dynamics and structure since their wave functions are well understood. Increasing momentum transfers by high energy electron, the effects of mesom exchange currents (MEC) and DELTA-isobar, relativistic effects, quark-gluon degrees-of-freedom, have to be taken into account. We proposed the elastic magnetic measurements of ^3He (e, e') and the d (e, e'p) coincidence measurements at MIT-Bates Laboratory (1 GeV Electron facility) as International Science Research Program.1. ^3He (e, e') project : The goal of this experiment is to measure the magnetic from factor of ^3He in the momentum transfer range Q^2=31^-54fm^<-2>. Since the cross sections as small as 10^<-40>cm^2/sr are anticipated, a good background rejection and a thick target are required. The system of a circulating gas ^3He target at 50 atom and 22 K was constructed at UMass and has been tested successfully in 1994. Special electronics for low ba … More ckground has been accommodated. The commissioning run was performed in 1994, the experiment will be performed in late 1995.2. d (e, e'p) project : The objective of this experiment is to investigate contributions of relativistic effects and meson exchange currents in the deuteron by means of a measurement of the d (e, e'p) coincidence cross sections (sigma_L+sigma_T, andsigma_<LT>)at low excitation energy (3 (E_<np>(12 MeV) and high momentum transfer (7.5 (q_<mu>^2(10 fm^<-2>). The liquid deuterium target cell was completed in Japan, the test with Basel Loop cooling system was done at MIT Bates successfully. The experiment using OOPS and OHIPS will be performed in late 1995.3. Prof.Ross Hicks of UMass was invited to Japan (1995.1.15-1995.2.3.)(1) Projects at MIT : We discussed about the ^3He (e, e') and d (e, e'p) at Shizuoka U.and Tohoku U.Concern ^<10>B electron scattering results, the discussion was took place at Osaka U.with Dr.T.Sato and Prof.Ohtsubo.(2) The future projects at CEBAF,U.S.A.(4 GeV Continuous electron facility) : Seminars were took place about the Physics programs (UMass and Shizuoka U.) at Tokyo Univ. (INS), Tohoku Univ.Osaka Univ.RCNP Osaka Univ.and Shizuoka Univ. These talks were quite successful and gave a strong impact to Japanese nuclear physicist in excellent physics subjects with high energy continous electron. Less