The Study of High Spin States in Nuclear Rotation by the Cranked Nilsson Strutinsky Model

Details The Study of High Spin States in Nuclear Rotation by the Cranked Nilsson Strutinsky Model The Study of High Spin States in Nuclear Rotation by the Cranked Nilsson Strutinsky Model

Nov 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aipc.1304..369k&link_type=abstract

EXOTIC NUCLEI AND NUCLEAR/PARTICLE ASTROPHYSICS (III): From Nuclei to Stars. AIP Conference Proceedings, Volume 1304, pp. 369-3

Mathematics

Group Theory

Heavy Ion-Nucleus Reactions, Electron Pair Production, Harmonic Oscillators, Nuclear Liquid Drop Model, Fusion And Fusion-Fission Reactions, Internal Pair Production, Oscillators, Pulse Generators, And Function Generators, Models Based On Group Theory

Scientific paper

A heavy-ion reaction can populate nuclear states of very high angular momentum with values of the order of I = 60 achievable. The reaction produces such configurations with a considerable internal excitation, but the emission of a few neutrons reduces the excitation energy effectively while not decreasing the spin by much. At sufficiently high spin the pairing is destroyed completely and the rigid-body moment of inertia becomes a good approximation. Even in this regime, however, the single-particle structure remains important and shell effects can be studied in terms of a rotating phenomenological shell model. On the theoretical side the cranked Nilsson strutinsky model has proved to be a successful tool to describe rapidly rotating nucleus. Indeed, this model gives a microscopic description of the influence of rotation on single-particle motion. This paper will concentrate on introduction to the cranked Nilsson strutinsky model in details. First, we explain the cranking model and the rotating liquid-drop model, then introduce the shell correction method. Also, we describe terminating bands, which show a continuous transition from high collectivity to a pure particle-hole state.

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