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RESEARCH PRODUCT
The β2p decay mechanism of Ar
Y. JadingIsmael MartelA. HonkanenP. HornshøjThomas NilssonL. M. FraileJ. ThaysenI. MukhaU. C. BergmannBjörn JonsonJuha ÄYstöAri JokinenM. H. SmedbergGöran Hugo NymanLeif AxelssonK. RiisagerTeemu SiiskonenMarkku OinonenInmaculada PiquerasFredrik WenanderMaría José García BorgeH. O. U. FynboOlof Tengbladsubject
PhysicsNuclear and High Energy PhysicsBeta (plasma physics)Nuclear TheoryIsobaric processState (functional analysis)GranularityProton emissionAtomic physicsNuclear ExperimentExcitationEnergy (signal processing)description
We have measured the beta-decay of Ar-31 with a high granularity setup sensitive to multiparticle decay branches. Two-proton emission is observed from the isobaric analog state in Cl-31 to the four lowest states in P-29 and furthermore from a large number of states fed in Gamow-Teller transitions. The mechanism of two-proton emission is studied via energy and angular correlations between the two protons. In all cases the mechanism is found to be sequential yielding information about states in S-30 up to 8 MeV excitation energy. Improved data on the beta-delayed one-proton branches together with the two-proton data provide precise information about the beta-strength distribution up to 15 MeV excitation energy.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2000-09-01 | Nuclear Physics A |