6533b85efe1ef96bd12c0547
RESEARCH PRODUCT
Lifetime Measurements of the Neutron-RichN=30IsotonesCa50andSc51: Orbital Dependence of Effective Charges in thefpShell
J. J. Valiente-dobónD. MengoniA. GadeaE. FarneaS. M. LenziS. LunardiA. DewaldTh. PissullaS. SzilnerR. BrodaF. RecchiaA. AlgoraL. AngusD. BazzaccoG. BenzoniP. G. BizzetiA. M. Bizzeti-sonaP. BoutachkovL. CorradiF. CrespiG. De AngelisE. FiorettoA. GörgenM. GorskaA. GottardoE. GrodnerB. GuiotA. HowardW. KrólasS. LeoniP. MasonR. MenegazzoD. MontanariG. MontagnoliD. R. NapoliA. ObertelliT. PawłatG. PollaroloB. RubioE. ŞAhinF. ScarlassaraR. SilvestriA. M. StefaniniJ. F. SmithD. SteppenbeckC. A. UrP. T. WadyJ. WrzesińskiE. MaglioneI. Hamamotosubject
Nuclear reactionPhysicsRecoilProtonExcited stateNuclear TheoryHadronGeneral Physics and AstronomyNeutronAtomic physicsNuclear ExperimentNucleonEffective nuclear chargedescription
The lifetimes of the first excited states of the N=30 isotones Ca-50 and Sc-51 have been determined using the Recoil Distance Doppler Shift method in combination with the CLARA-PRISMA spectrometers. This is the first time such a method is applied to measure lifetimes of neutron-rich nuclei populated via a multinucleon transfer reaction. This extends the lifetime knowledge beyond the f(7/2) shell closure and allows us to derive the effective proton and neutron charges in the fp shell near the doubly magic nucleus Ca-48, using large-scale, shell-model calculations. These results indicate an orbital dependence of the core polarization along the fp shell.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2009-06-16 | Physical Review Letters |