Publication
Strong neutron pairing in core+4$n$ nuclei
| dc.contributor.author | R3B collaboration (103 authors) | |
| dc.contributor.author | Galaviz, D. | |
| dc.date.accessioned | 2019-02-05T16:02:44Z | |
| dc.date.available | 2019-02-05T16:02:44Z | |
| dc.date.issued | 2018-04-12 | |
| dc.date.updated | 2019-02-05T16:02:44Z | |
| dc.description.abstract | The emission of neutron pairs from the neutron-rich N=12 isotones C18 and O20 has been studied by high-energy nucleon knockout from N19 and O21 secondary beams, populating unbound states of the two isotones up to 15 MeV above their two-neutron emission thresholds. The analysis of triple fragment-n-n correlations shows that the decay N19(-1p)C18*→C16+n+n is clearly dominated by direct pair emission. The two-neutron correlation strength, the largest ever observed, suggests the predominance of a C14 core surrounded by four valence neutrons arranged in strongly correlated pairs. On the other hand, a significant competition of a sequential branch is found in the decay O21(-1n)O20*→O18+n+n, attributed to its formation through the knockout of a deeply bound neutron that breaks the O16 core and reduces the number of pairs. | |
| dc.description.version | Peer Reviewed | |
| dc.identifier | Phys.Rev.Lett. 120 (2018) 152504; DOI 10.1103/PhysRevLett.120.152504 | |
| dc.identifier.uri | http://dx.doi.org/10.1103/PhysRevLett.120.152504 | |
| dc.identifier.uri | http://hdl.handle.net/10400.26/27593 | |
| dc.language.iso | eng | |
| dc.title | Strong neutron pairing in core+4$n$ nuclei | |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| rcaap.rights | openAccess | pt |
| rcaap.type | article |