6533b854fe1ef96bd12adf72
RESEARCH PRODUCT
High-resolution studies of beta-delayed proton emitters at IGISOL facility
Heikki PenttiläG. LhersonneauJuha ÄYstöJussi HuikariAri JokinenJ. C. WangMarkku OinonenA. NieminenS. HankonenPeter DendoovenTeemu SiiskonenKari PerajarviA. HonkanenP.o. Lipassubject
PhysicsNuclear physicsDecay schemeProtonIsospinNuclear TheoryIsobaric processProton emissionAtomic physicsNuclear ExperimentGround stateExcitationIondescription
Beta-decays of23Al and41Ti have been studied by applying ion guide techniques, gamma detection and a gas-Si telescope for charged-particle detection. The experimental beta-decay strength of41Ti was found to be quenched by a factor ofq2 = 0.64 compared to our shell model calculations below 8 MeV excitation energy in41Sc. This result is in line with the generally accepted value ofq = 0.77. The isobaric analogue state of the41Ti ground state was measured to contain 10(8)% isospin impurity. This relatively high value could be well reproduced by the shell model calculation in thesdfp space. Gamma-decay of theT = 3/2 isobaric analogue state in23Mg was observed together with its decay by proton emission. The resonance strength from the ground state of22Na to the isobaric analogue state in23Mg was determined as 5.4(17) meV. The experimental proton width, 13(4) meV, agrees with the calculated value of 21 meV.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1998-08-01 |