Classical and quantum properties of the semiregular arc inside the Casten triangle - INSPIRE

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Classical and quantum properties of the semiregular arc inside the Casten triangle

Jun, 2007

13 pages

Published in:

Phys.Rev.C 75 (2007) 064318

DOI:

10.1103/PhysRevC.75.064318

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Nuclear Science References

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Abstract: (APS)

We investigate classical and quantum signatures of increased regularity in the Alhassid-Whelan semiregular arc inside the symmetry triangle of the interacting boson model. A significant bunching/antibunching pattern of quantum levels, similar to that observed along the O(6)-U(5) transition, is found in the 0+ energy spectrum and related to a crossover of two specific families of classical regular orbits slightly above E=0. We also discuss the degeneracy of β and γ bandheads in a region close to the arc and the relation to regularity in the geometric model.

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References(43)

Figures(0)

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