TIGRESS integrated plunger for lifetime measurements at TRIUMF

该提案的目标是启动一项研究计划，解决质子和中子数量相等的重核中的电磁跃迁衰变率。拟议的研究将针对变形和非轴性的测量，以及核形状转变和形状共存的签名的识别。实验方法的选择是反冲距离法和多普勒频移衰减法的寿命长于和短于1皮秒，分别。感兴趣的状态将在复合核反应之后填充;实验装置将包括加拿大亚原子物理研究设施TRIUMF的TIGRESS探测器系统。拟议的TIGRESS集成柱塞装置将与带电粒子和中子探测器阵列一起工作，预计将提供特殊的灵敏度，使核结构研究的突破性研究成为可能。

The goal of this proposal is to initiate a program of studies addressing electromagnetic transition decay rates in heavy nuclei with equal numbers of protons and neutrons. The proposed studies will be aimed at the measurements of deformation and non-axiality, as well as the identification of signatures of nuclear shape transitions and shape coexistence. The experimental methods of choice are the Recoil Distance Method and the Doppler Shift Attenuation Method for lifetimes longer and shorter then 1 picosecond, respectively. States of interest will be populated following compound nucleus reactions; the experimental setup will include the TIGRESS detector system at TRIUMF, Canada's research facility for subatomic physics. The proposed TIGRESS-integrated plunger device will work in conjunction with an array of charged-particle and neutron detectors, and is anticipated to provide exceptional sensitivity enabling break-through studies in nuclear structure research.