English

Companion problems in quasispin and isospin

Nuclear Theory 2009-11-10 v4

Abstract

We note that the same mathematical results apply to problems involving quasispin and isospin, but the problems per se are different. In the quasispin case, one deals with a system of identical fermions (e.g. neutrons) and address the problem of how many seniority conserving interactions there are. In the isospin case, one deals with a system of both neutrons and protons and the problem in question is the number of neutron-proton pairs with a given total angular momentum. Other companion problems are also discussed.

Keywords

Cite

@article{arxiv.nucl-th/0410031,
  title  = {Companion problems in quasispin and isospin},
  author = {Larry Zamick and Alberto Escuderos},
  journal= {arXiv preprint arXiv:nucl-th/0410031},
  year   = {2009}
}

Comments

12 pages, Latex; some additions in section II and a brief summary at the end

R2 v1 2026-07-22T18:32:39.651Z