guest ::
| Home > Publications database > Strong Neutron Pairing in core + 4 n Nuclei |
| Journal Article | GSI-2018-00762 |
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;
2018
APS
College Park, Md.
This record in other databases: 
Please use a persistent id in citations: doi:10.1103/PhysRevLett.120.152504
Abstract: The emission of neutron pairs from the neutron-rich $N\!=\!12$ isotones $^{18}$C and $^{20}$O has been studied by high-energy nucleon knockout from $^{19}$N and $^{21}$O 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 $^{19}$N$(-1p)^{18}$C$^*\!\rightarrow^{16}$C+$n$+$n$ is clearly dominated by direct pair emission. The two-neutron correlation strength, the largest ever observed, suggests the predominance of a $^{14}$C 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 $^{21}$O$(-1n)^{20}$O$^*\!\rightarrow^{18}$O+$n$+$n$, attributed to its formation through the knockout of a deeply-bound neutron that breaks the $^{16}$O core and reduces the number of pairs.
- ddc:550
Note: 6 pages, 4 figures, accepted for publication in Phys. Rev. Lett
Contributing Institute(s): Research Program(s):
- 612 - Cosmic Matter in the Laboratory (POF3-612) (POF3-612)
- GSI-EXP-S306-2010 - Investigation of inversion of vd 3/2-vf 7/2, p 3/2, 1/2 orbitals in neutron-rich nuclei around N20 shell closure (EXP:GSI-EXP-S306-2010) (EXP:GSI-EXP-S306-2010)
- R3Bsetup-detectors - R3B Setup/Detektoren (R3Bsetup-detectors) (R3Bsetup-detectors)
- SUC-GSI-Darmstadt - Strategic university cooperation GSI-TU Darmstadt (SUC-GSI-DA) (SUC-GSI-DA)
Appears in the scientific report 2018
Database coverage:
; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF >= 5 ; JCR ; NCBI Molecular Biology Database ; Nationallizenz
; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection
|
The record appears in these collections: |