English

Exactly Solvable Pairing Models

Nuclear Theory 2018-02-20 v1

Abstract

Some results for two distinct but complementary exactly solvable algebraic models for pairing in atomic nuclei are presented: 1) binding energy predictions for isotopic chains of nuclei based on an extended pairing model that includes multi-pair excitations; and 2) fine structure effects among excited 0+0^+ states in NZN \approx Z nuclei that track with the proton-neutron (pnpn) and like-particle isovector pairing interactions as realized within an algebraic sp(4)sp(4) shell model. The results show that these models can be used to reproduce significant ranges of known experimental data, and in so doing, confirm their power to predict pairing-dominated phenomena in domains where data is unavailable.

Keywords

Cite

@article{arxiv.1802.06508,
  title  = {Exactly Solvable Pairing Models},
  author = {J. P. Draayer and V. G. Gueorguiev and K. D. Sviratcheva and C. Bahri and Feng Pan and A. I. Georgieva},
  journal= {arXiv preprint arXiv:1802.06508},
  year   = {2018}
}

Comments

12 pages, 3 figures, Proceedings of the 8th International Spring Seminar on Nuclear Physics in Paestum, Italy, 23 - 27 May 2004. Published by World Scientific as Key Topics in Nuclear Structure. March 2005, pp 483-494, Edited by Aldo Covello