6533b7d6fe1ef96bd1265d1c
RESEARCH PRODUCT
Recoil-α-fission and recoil-α–α-fission events observed in the reaction 48Ca + 243Am
Carl J GrossJulia EvenJ. KrierWitold NazarewiczWitold NazarewiczWitold NazarewiczT. TorresAlexander YakushevK. P. RykaczewskiI. KojouharovMatthias SchädelDirk RudolphBirgit KindlerCh. E. DüllmannN. KurzDaniel CoxF. P. HeßbergerEgon JägerIngemar RagnarssonKlaus EberhardtMichael BlockJ. P. OmtvedtC. MokryDieter AckermannJacek DobaczewskiJacek DobaczewskiPetra Thörle-pospiechH. SchaffnerA. WardSven ÅBergJ. V. KratzDaniel WardA. K. MistryAndreas TürlerPhilippos PapadakisHeino NitscheKenneth E. GregorichNorbert WiehlClaes FahlanderU. ForsbergX. DerkxJadambaa KhuyagbaatarH. BrandBettina LommelJ. GerlA. Di NittoYue ShiYue ShiJörg RunkeB. G. CarlssonJ. M. GatesL.-l. AnderssonB. SchaustenLuis SarmientoNorbert TrautmannR.-d. HerzbergPavel GolubevT. Trautsubject
Nuclear and High Energy Physicsalpha decayFissionSuperheavy elementschemistry.chemical_elementSuperheavy Elementsnucl-exAtomic01 natural sciences7. Clean energyNuclear physicsParticle and Plasma PhysicsRecoil0103 physical sciencesNuclearElement 115α decayNuclear Experiment010306 general physicsUnunpentiumSpontaneous fissionPhysicsQuantum PhysicsUup010308 nuclear & particles physicsSpontaneous fissionMolecularNuclear & Particles PhysicsSuperheavy elementchemistryDecay chainAlpha decayAstronomical and Space SciencesExcitationdescription
Products of the fusion-evaporation reaction 48Ca + 243Am were studied with the TASISpec set-up at the gas-filled separator TASCA at the GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany. Amongst the detected thirty correlated α-decay chains associated with the production of element Z=115, two recoil-α-fission and five recoil-α-α-fission events were observed. The latter five chains are similar to four such events reported from experiments performed at the Dubna gas-filled separator, and three such events reported from an experiment at the Berkeley gas-filled separator. The four chains observed at the Dubna gas-filled separator were assigned to start from the 2n-evaporation channel 289115 due to the fact that these recoil-α-α-fission events were observed only at low excitation energies. Contrary to this interpretation, we suggest that some of these recoil-α-α-fission decay chains, as well as some of the recoil-α-α-fission and recoil-α-fission decay chains reported from Berkeley and in this article, start from the 3n-evaporation channel 288115.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-09-01 | Nuclear Physics A |