6533b7d8fe1ef96bd126a6a4

RESEARCH PRODUCT

Confirmation of the new isotope 178Pb

Hussam BadranCatherine ScholeyKalle AuranenTuomas GrahnPaul GreenleesAndrej HerzanUlrika JakobssonRauno JulinSakari JuutinenJoonas KonkiMatti LeinoMichael MallaburnJanne PakarinenPhilippos PapadakisJari PartanenPauli PeuraPanu RahkilaMikael SandzeliusJan SarénJuha SorriSanna StolzeJuha Uusitalo

subject

neutron-deficient isotopesalpha decayHigh Energy Physics::Experimentlyijy

description

The extremely neutron-deficient isotope 178Pb has been produced. The GREAT spectrometer at the focal plane position of the gas-filled separator RITU was used to study the α decay of 178Pb and its α-decay chain through α-α correlations. The α decay was measured to have an energy and half-life of Eα= 7610(30) keV and t1/2 = 0.21+0.21 −0.08 ms, respectively. The half-life is consistent with recent theoretical calculations using the Coulomb and proximity potential model. The α-decay reduced width and hindrance factor for 178Pb were deduced and correspond to an unhindered l = 0 transition. In addition, the mass excess of 178Pb and the α-decay Q value were calculated from the experimental results and compared to theoretical values. peerReviewed

http://urn.fi/URN:NBN:fi:jyu-201611284810