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On the level spacing of statically deformed nuclei

Об интервалах между уровнями статически деформированных ядер

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Il Nuovo Cimento A (1965-1970)

Summary

Level densities for a number of deformed nuclei, both in lanthanide and actinide regions, are calculated with statistical methods, by starting from single-particle states in a Nilsson potential and taking into account pairing interactions in the frame of the BCS formalism; collective effects are included by treating deformed nuclei as pure (axially symmetric) rotors. Theoretical estimates of the level spacing at the neutron binding energy are compared with experimental data.

Riassunto

Si calcolano le densità di livelli di nuclei deformati, nelle regioni dei lantanidi e degli attinidi, con metodi statistici, a partire da livelli di particella singola in un potenziale di Nilsson e trattando le interazioni di appaiamento nn e pp nel formalismo BCS; effetti collettivi vengono introdotti trattando i nuclei deformati come puri rotatori con simmetria assiale e di riflessione. Si confrontano le stime teoriche della distanza media dei livelli nucleari all'energia di legame dell'ultimo neutrone con i dati sperimentali.

Резюме

Вычисляются плотности уровней для ряда деформированных ядер в области лантанидов и в области актинидов. При вычислении используются статистические методы, исходя из одночастичных состояний в потенциале Нильсона и учитывая парные взаимодействия в рамках BCS-формализма. Учитываются коллективные эффекты, рассматривая деформированные ядра как (аксиально симметричные) ротаторы. Теоретические оценки для интервалов между уровнями сравниваются с экспериментальными данными.

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Authors and Affiliations

  1. Laboratorio Dati Nucleari, Centro di Calcolo del CNEN, Bologna, (Italia)

    G. Maino (Guest researcher), E. Menapace & A. Ventura

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  1. G. Maino
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  2. E. Menapace
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  3. A. Ventura
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Maino, G., Menapace, E. & Ventura, A. On the level spacing of statically deformed nuclei. Nuov Cim A 50, 1–12 (1979). https://doi.org/10.1007/BF02804766

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  • DOI: https://doi.org/10.1007/BF02804766

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