Few Nucleon System Study by Hign Energy Electron Scattering.

电子与少体核的散射在研究原子核动力学和结构中起着重要的作用，因为它们的波函数已经被很好地理解。高能电子增加动量转移、介体交换流（MEC）和Δ-等压线效应、相对论效应、夸克-胶子自由度等都必须考虑。作为国际科学研究计划，我们在麻省理工学院贝茨实验室（1GeV电子装置）提出了^3He（e，e '）的弹性磁测量和d（e，e' p）符合测量。^3He（e，e '）计划：该实验的目标是测量^3He在动量传递范围Q^2=31^-54 fm ^内的磁源因子<-2>。由于预期横截面小至10^<-40>cm ^2/sr，因此需要良好的背景抑制和厚靶。在22 K温度下，50个原子的循环气体^3 He靶系统是在马萨诸塞大学建造的，并于1994年成功地进行了测试。低碱专用电子产品 ...更多信息 ckground已被容纳。试运行于1994年进行，试验将于1995年底进行。d（e，e 'p）计划：本实验的目的是在低激发能（3（E_（12 MeV））和高动量转移（7.5（q_ ^2（10 fm^）下，通过测量d（e，e' p）符合截面（σ_L+ σ_T和σ_L），研究相对论效应和氘核中介子交换流的贡献<LT><np><mu><-2>。液体氘靶室在日本完成，巴塞尔环路冷却系统在MIT Bates成功地进行了试验。使用OOPS和OHIPS的试验将于1995年后期进行。麻省大学的罗斯·希克斯教授应邀访问日本（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^3 He（e，e '）和d（e，e' p）。关于^<10>B电子散射结果，讨论是在大坂大学与佐藤博士和大坪教授进行的。(2)美国CEBAF未来项目（4 GeV连续电子设施）：举行了关于物理学计划的研讨会（麻省大学和静冈大学）。在东京大学（INS）、东北大学、大坂大学、RCNP大坂大学和静冈大学举行了这些讲座。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中产生了强烈的影响。减

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