Proton Distribution Radii of
Phys Rev Lett
; 129(14): 142502, 2022 Sep 30.
Article
in En
| MEDLINE
| ID: mdl-36240396
ABSTRACT
The root mean square radii of the proton density distribution in ^{16-24}O derived from measurements of charge changing cross sections with a carbon target at â¼900A MeV together with the matter radii portray thick neutron skin for ^{22-24}O despite ^{22,24}O being doubly magic. Imprints of the shell closures at N=14 and 16 are reflected in local minima of their proton radii that provide evidence for the tensor interaction causing them. The radii agree with ab initio calculations employing the chiral NNLO_{sat} interaction, though skin thickness predictions are challenged. Shell model predictions agree well with the data.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Protons
/
Neutrons
Type of study:
Prognostic_studies
Language:
En
Journal:
Phys Rev Lett
Year:
2022
Document type:
Article