Neutrons and Interactions of Medium-Energy Particles and Nuclei with Nuclei (Physics)

这是肯特州立大学（KSU）的中能核物理小组提出的一项建议，旨在研究（p,n）反应补充（n,p）反应中的Gamow-Teller强度、拉伸态激发、分析功率和极化转移观测值；通过测量等质量核的高多重碰撞产生的中子的三微分截面作为质量数和轰击能量的函数来探测核状态方程（EOS），其中反应平面的方位角是通过测量碰撞中发射的带电碎片的横向速度来确定的；并通过电子诱导反应来探测核子和原子核结构。KSU致力于通过KSU偏振计测量来自氘中非极化中子的纵向极化电子准弹性散射后反冲中子的极化，来确定中子的电形状因子的实验。此外，KSU还向CEBAF提交了关于中子电荷形式因子、介子的光产生和电产生、准弹性（e,e'n）巧合反应中的中子敲除和双核子敲除（e,e'2N）反应的实验意向书。该小组正在继续开发用于中子探测的改进仪器。目前的项目包括改进的中子偏振计和更高效率的中子探测器。

This is a proposal by the Medium-Energy Nuclear Physics Group at Kent State University (KSU) to study Gamow-Teller strength, stretched-state excitations, analyzing powers, and polarization-transfer observables in (p,n) reactions supplemented by (n,p) reactions; to probe the nuclear equation-of-state (EOS) by measuring triple-differential cross sections for neutrons from high-multiplicity collisions of equal-mass nuclei as a function of mass number and bombarding energy, where the azimuthal angle of the reaction plane is determined by measuring the transverse velocities of charged fragments emitted in a collision; and to probe nucleon and nuclear structure via electron-induced reactions. KSU is committed to an experiment to determine the electric form factor of the neutron by using the KSU polarimeter to measure the polarization of the recoil neutron after quasielastic scattering of a longitudinally-polarized electron from an unpolarized neutron in deuterium. Also KSU has submitted letters of intent to CEBAF for experiments on the charge form factor of the neutron, the photoproduction and electroproduction of rho mesons, neutron knockout in the quasielastic (e,e'n) coincidence reaction, and two-nucleon knockout (e,e'2N) reactions. The group is continuing to develop improved instrumentation for the detection of neutrons. Current projects include improved neutron polarimeters and higher efficiency neutron detectors.