6533b86dfe1ef96bd12ca7d8

RESEARCH PRODUCT

β-decay and β-delayed Neutron Emission Measurements at GSI-FRS Beyond N=126, for r-process Nucleosynthesis

J. MarganiecR. Caballero-folchC. NociforoIris DillmannHans GeisselM. B. Gómez-hornillosA. García-riosH. SchaffnerD. TestovFernando MontesFernando MontesL. MaierA. EstradeBao-hua SunR. WoodR. KnöbelC. Domingo-pardoD. Cano-ottYuri A. LitvinovThomas DavinsonD. R. NapoliZs. PodolyákThomas FaestermannW. GelletlyF. CalviñoD. GalavizM. BowryA. V. YereminG. CortesA. RiegoT. MartinezA. ProchazkaC. ParadelaAlejandro AlgoraM. MartaI. KojouharovC. ScheidenbergerJ. L. TainB. RubioJ. KurcewiczN. KurzSimon RiceA. EvdokimovF. FarinonE. WilsonYassid AyyadK. SteigerI. MukhaS. PietriPhilip WoodsJ. AgramuntRoman GernhäuserE. SokolF. AmeilHelmut WeickC. HinkeJ. S. WinfieldJ. BenlliureCarlos GuerreroMichael HeilM. TakechiKarl Smith

subject

PhysicsNuclear and High Energy PhysicsIsotope010308 nuclear & particles physicsNeutron emissionBranching fraction01 natural sciencesNuclear physicsNucleosynthesis0103 physical sciencesr-processNeutron010306 general physicss-processDelayed neutron

description

New measurements of very exotic nuclei in the neutron-rich region beyond N=126 have been performed at the GSI facility with the fragment separator (FRS). The aim of the experiment is to determine half-lives and β-delayed neutron emission branching ratios of isotopes of Hg, Tl and Pb in this region. This contribution summarizes final counting statistics for identification and for implantation, as well as the present status of the data analysis of the half-lives. In summary, isotopes of Pt, Au, Hg, Tl, Pb, Bi, Po, At, Rn and Fr were clearly identified and several of them (208-211Hg, 211-215Tl, 214-218Pb) were implanted with enough statistics to determine their half-lives. About half of them are expected to be neutron emitters, in such cases it will become possible to obtain the neutron emission probabilities, Pn. © 2014 Elsevier Inc.

yearjournalcountryeditionlanguage
2014-06-01Nuclear Data Sheets
https://doi.org/10.1016/j.nds.2014.07.012