6533b7dcfe1ef96bd1272c88
RESEARCH PRODUCT
Selective laser ionization of N≥82 indium isotopes: The new r-process nuclide 135In
V. N. FedoseyevJ. ShergurUlli KösterA. WöhrD. V. FedorovI. DillmannLeonid WeissmanKarl KratzW. B. WaltersM. HannawaldB. Pfeiffersubject
PhysicsNuclear and High Energy PhysicsIsotopeAnalytical chemistrychemistry.chemical_elementchemistryIonizationIsobaric processr-processNuclear fusionNuclear Physics - ExperimentNeutronNuclideAtomic physicsIndiumdescription
Production yields and beta-decay half-lives of very neutron-rich indium isotopes were determined at CERN/ISOLDE using isobaric selectivity of a resonance-ionization laser ion-source. Beta-delayed neutron multiscaling measurements have yielded improved half-lives for 206(6)~ms $^{132}$In, 165(3)~ms $^{133}$In and 141(5)~ms $^{134}$In. With 92(10)~ms $^{135}$In, a new r-process nuclide has been identified which acts as an important `waiting-point' in the In isotopic chain for neutron densities in the range n$_n \simeq 10^{24}$--10$^{26}$ n/cm$^3$, where the r-matter flow has already passed the ${\rm A} \simeq 130$ abundance-peak region.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2002-02-18 | The European Physical Journal A |