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Proton-neutron pairing and alpha-type quartet condensation in nuclei
| Content Provider | Semantic Scholar |
|---|---|
| Author | Sandulescu, Nicolae Négréa, Daniel Dukelsky, Jorge Johnson, Calvin W. |
| Copyright Year | 2013 |
| Abstract | Proton-neutron pairing in nuclei is commonly described by generalized BCS/HFB models. By construction, these models do not conserve the particle number and the isospin. Here we shall review an alternative approach, based on quartets instead of Cooper pairs, in which both the particle number and the isospin are exactly conserved. In this approach the ground state of N=Z nuclei is approximated by a condensate of alpha-like quartets built by two neutrons and two protons coupled to the isospin T=0. For nuclei with N > Z the ground state is taken as a superposition of a quartet condensate and a pair condensate formed by the neutrons in excess relative to the isotope with N=Z. |
| Starting Page | 012018 |
| Ending Page | 012018 |
| Page Count | 1 |
| File Format | PDF HTM / HTML |
| DOI | 10.1088/1742-6596/533/1/012018 |
| Volume Number | 533 |
| Alternate Webpage(s) | http://www.nipne.ro/rjp/2013_58_9-10/1141_1147.pdf |
| Alternate Webpage(s) | https://doi.org/10.1088/1742-6596%2F533%2F1%2F012018 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
