Charge exchange operators sum rules and proton-neutron T=0 and T=1 pairing interactions

E. Moya de Guerra; A. A. Raduta; L. Zamick; P. Sarriguren

doi:10.1016/j.nuclphysa.2003.07.009

Charge exchange operators sum rules and proton-neutron T=0 and T=1 pairing interactions

Nuclear Theory 2009-11-10 v2

Authors: E. Moya de Guerra , A. A. Raduta , L. Zamick , P. Sarriguren

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Abstract

We study sum rules for charge exchange operators of the Gamow-Teller and Fermi type and explore what can be learned from them about proton-neutron pairing in T=0 and T=1 channels. We consider both energy weighted (EWSR) and non-energy weighted (NEWSR) sum rules. We use a schematic Hamiltonian to stress the distinctive roles of T=1 and T=0 pair interactions and correlations in the sum rules. Numerical results for 44Ti are presented for both schematic and realistic interactions.

Keywords

charge exchange sum rules proton-neutron pairing gamow-teller fermi t=0 and t=1 channels 44ti

Cite

@article{arxiv.nucl-th/0304024,
  title  = {Charge exchange operators sum rules and proton-neutron T=0 and T=1 pairing interactions},
  author = {E. Moya de Guerra and A. A. Raduta and L. Zamick and P. Sarriguren},
  journal= {arXiv preprint arXiv:nucl-th/0304024},
  year   = {2009}
}

Comments

17 pages, new section added. To appear in Nucl. Phys. A

Charge exchange operators sum rules and proton-neutron T=0 and T=1 pairing interactions

Abstract

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