Identification of the slow E3 transition (136)C(s)(m)->(136)Cs with conversion electrons
2011 (English)In: Physical Review C. Nuclear Physics, ISSN 0556-2813, E-ISSN 1089-490X, Vol. 84, no 1, 014329- p.Article in journal (Refereed) Published
We performed at ISOLDE the spectroscopy of the decay of the 8(-) isomer in (136)Cs by. and conversion-electron detection. For the first time the excitation energy of the isomer and the multipolarity of its decay have been measured. The half-life of the isomeric state was remeasured to T(1/2) = 17.5(2) s. This isomer decays via a very slow 518-keV E3 transition to the ground state. In addition to this, a much weaker decay branch via a 413-keV M4 and a subsequent 105-keV E2 transition has been found. Thus we have found a new level at 105 keV with spin 4(+) between the isomeric and the ground state. The results are discussed in comparison to shell-model calculations.
Place, publisher, year, edition, pages
2011. Vol. 84, no 1, 014329- p.
IdentifiersURN: urn:nbn:se:uu:diva-156944DOI: 10.1103/PhysRevC.84.014329ISI: 000293129700003OAI: oai:DiVA.org:uu-156944DiVA: diva2:435844