Relation between the critical spin and angular velocity of a nucleus immediately after backbending

V. G. Nosov; A. M. Kamchatnov

Relation between the critical spin and angular velocity of a nucleus immediately after backbending

Nuclear Theory 2007-05-23 v1

Authors: V. G. Nosov , A. M. Kamchatnov

Abstract

In nonspherical nuclei at $J = J_c + 0$ the relationship between the angular momentum and angular velocity immediately after backbending is the same as in the limiting case $J - J_c\to\infty$ . This indicates that there is a unique type of cancellation of the deviations from a rigid-body moment of inertia in the upper phase $J>J_c$ . An integral relationship is found which expresses this cancellation quantitatively. This formula permits $J_c$ to be calculated for the rotational bands of the even-even nuclei studied and the results are in agreement with those obtained by other methods of locating the Curie point. For the ground state band of W $^{170}$ the cancellation of the reciprocals of the true and rigid-body moments of inertia can be verified directly. The condition for the stability of the rotation of a nonspherical nucleus is analyzed in the Appendix in close connection with the problem of a reasonable definition of the concept of a variable moment of inertia.

Keywords

backbending critical spin angular velocity moment of inertia nonspherical nuclei rotational bands

Cite

@article{arxiv.nucl-th/0405001,
  title  = {Relation between the critical spin and angular velocity of a nucleus immediately after backbending},
  author = {V. G. Nosov and A. M. Kamchatnov},
  journal= {arXiv preprint arXiv:nucl-th/0405001},
  year   = {2007}
}

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9 pages, 1 figure in GIF format

Relation between the critical spin and angular velocity of a nucleus immediately after backbending

Abstract

Keywords

Cite

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