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SHAPE EVOLUTION AT HIGH SPINS AND TEMPERATURES: NUCLEAR JACOBI AND POINCARE TRANSITIONS

A. MAJ

The H. Niewodniczański Institute of Nuclear Physics PAN, ul. Radzikowskiego 152, Pl 31-342 Kraków, Poland

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K. MAZUREK

The H. Niewodniczański Institute of Nuclear Physics PAN, ul. Radzikowskiego 152, Pl 31-342 Kraków, Poland

Grand Accélérateur National d'Ions Lourds Bd Henri Becquerel, BP 55027 - 14076 CAEN Cedex 05, France

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J. DUDEK

Institut Pluridisciplinaire Hubert Curien, Departement de Recherches Subatomiques and Université de Strasbourg, 23 rue du Loess, F-67037 Strasbourg, France

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M. KMIECIK

The H. Niewodniczański Institute of Nuclear Physics PAN, ul. Radzikowskiego 152, Pl 31-342 Kraków, Poland

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, and

D. ROUVEL

Institut Pluridisciplinaire Hubert Curien, Departement de Recherches Subatomiques and Université de Strasbourg, 23 rue du Loess, F-67037 Strasbourg, France

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https://doi.org/10.1142/S0218301310014947Cited by:7 (Source: Crossref)

Abstract

We consider a realistic description of hot, fast rotating nuclei with the help of the macroscopic nuclear model, LSD, of Refs.^1,2 We examine in particular a competition between Jacobi-type instabilities that preserve the left-right symmetry of nuclear systems and the Poincaré-type ones that break this symmetry. It is shown that in exotic nuclei these two mechanisms should be considered together in order to reach the lowest-energy nuclear configurations. Results from our related experiments are discussed together with the examples of preliminary theoretical predictions.

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