6533b86cfe1ef96bd12c89ee

RESEARCH PRODUCT

Fusion reaction Ca48+Bk249 leading to formation of the element Ts ( Z=117 )

Rose A. BollG. K. PangDaniel CoxDaniel CoxSusanta LahiriF. P. HeßbergerJ. HoffmannDaniel WardEvgeny E. TereshatovM. WegrzeckiK. TinschertR. LangAndreas TürlerAndreas TürlerJ. KrierClaes FahlanderC. MokryJulia EvenT. Torres De HeidenreichEgon JägerD. RenischJ. V. KratzD. A. ShaughnessyH. BrandR. HollingerJ. M. GatesJon Petter OmtvedtX. DerkxS. M. Van CleveL.-l. AnderssonPhilippos PapadakisPhilippos PapadakisS. MinamiKlaus EberhardtU. ForsbergW. HartmannA. Di NittoNorbert TrautmannJames B. RobertoN. KurzV. YakushevaJ. RunkeBettina LommelMahananda DasguptaA. HübnerAlexander YakushevMatthias SchädelMatthias SchädelKenneth E. GregorichPatrick SteineggerPatrick SteineggerB. SchaustenH. NitscheH. NitscheBirgit KindlerLuis SarmientoJuha UusitaloMaurits EversDirk RudolphK. MiernikR.-d. HerzbergCh. E. DüllmannCh. E. DüllmannN. GharibyanA. SemchenkovPavel GolubevDieter AckermannPetra Thörle-pospiechJ. SteinerA. K. MistryA. K. MistryM. AsaiDavid HindeMichael BlockM. LaatiaouiNorbert WiehlK. P. RykaczewskiJ. H. HamiltonJadambaa KhuyagbaatarMoumita MaitiMoumita Maiti

subject

PhysicsNuclear physicsNuclear TheoryNuclear fusionDecay chainAlpha decayActinideSuperheavy ElementsNuclear ExperimentRecoil separator

description

The heaviest currently known nuclei, which have up to 118 protons, have been produced in 48Ca induced reactions with actinide targets. Among them, the element tennessine (Ts), which has 117 protons, has been synthesized by fusing 48Ca with the radioactive target 249Bk, which has a half-life of 327 d. The experiment was performed at the gas-filled recoil separator TASCA. Two long and two short α decay chains were observed. The long chains were attributed to the decay of 294Ts. The possible origin of the short-decay chains is discussed in comparison with the known experimental data. They are found to fit with the decay chain patterns attributed to 293Ts. The present experimental results confirm the previous findings at the Dubna Gas-Filled Recoil Separator on the decay chains originating from the nuclei assigned to Ts.

https://doi.org/10.1103/physrevc.99.054306