Multi-Phonon Vibrations in 180Os.

这项拨款申请旨在了解原子核中角动量的形成方式。每个人，从小孩到成年人，都很熟悉旋转陀螺或陀螺仪是如何在陀螺继续旋转的情况下保持直立的。系统的旋转，或角动量，给顶部带来了额外的稳定性，只要顶部保持旋转，它就能克服重力。一旦陀螺停止旋转，它就会倒下，因为重力不再被角动量抵消。自旋也是原子和原子核微观世界的一个基本特性。该提案所涉及的研究首次表明，可以通过核形状的多次振动来产生高自旋值，而不仅仅是用传统的方式使其旋转得越来越快。对于一个旋转的陀螺，等效的运动是一个陀螺通过增加和减少它的半径来保持直立（在一个更胖的和一个更薄的陀螺之间振荡），而不是旋转。这笔拨款将使我们能够充分理解我们的研究小组首先观察到的这种令人兴奋的原子核新行为。这笔资金将使我们能够在世界上最敏感的设备上进行一项经批准的实验，并与世界上顶尖的核结构理论家讨论结果。这笔拨款将确保英国继续领导这项国际研究并传播研究成果，最初是在国际会议上，后来是在已发表的文献中。

This grant application is aimed at understanding the way in which angular momentum is built up in nuclei. Everyone, from young childern to adults, is familiar with the way a spinning top or gyroscope manages to stay upright as long as the top continues to spin. The spin of the system, or angular momentum, introduces extra stability to the top which allows it to overcome gravity as long as the top remains spining. As soon as the top stops spinning it falls over as gravity is no longer counteracted by the angular momentum. Spin is also a fundamental property of the microscopic world of atoms and nuclei. The research addressed by this proposal has shown, for the first time, that it is possible to generate high nuclear spin values by multiple vibrations of the nuclear shape rather than just spinning it faster and faster in the conventional way. For a spinning top, the equivalent motion would be a top which stays upright by increasing and decreasing its radius (oscillating between a fatter- and a thinner-top) instead of rotating. This grant will allow us to fully understand this exciting new behaviour in nuclei which was first observed by our research group. The funding will permit us to undertake an approved experiment on the world's most sensitive equipment and discuss the results with the top nuclear-structure theorists in the world. The grant will ensure that the UK continues to lead this international research and disseminate the research findings, initially at an international conference and later in the published literature.