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Brunet, M.*; Podolyk, Zs.*; Berry, T. A.*; Brown, B. A.*; Carroll, R. J.*; Lica, R.*; Sotty, Ch.*; Andreyev, A. N.; Borge, M. J. G.*; Cubiss, J. G.*; et al.
Physical Review C, 103(5), p.054327_1 - 054327_13, 2021/05
被引用回数:4 パーセンタイル:55.56(Physics, Nuclear)The structure of Po populated through the EC/ decay of At is investigated using -ray spectroscopy at the ISOLDE Decay Station. The presented level scheme contains 27 new excited states and 43 new transitions, as well as a further 50 previously observed rays which have been (re)assigned a position. Through the analysis using the shell model calculations approximately half of the -decay strength of At is found to proceed via allowed decay and half via first-forbidden decay. The first-forbidden transitions predominantly populate core excited states at high excitation energies, which is qualitatively understood using shell model considerations.
Benito, J.*; Fraile, L. M.*; Korgul, A.*; Piersa, M.*; Adamska, E.*; Andreyev, A. N.; lvarez-Rodrguez, R.*; 他81名*
Physical Review C, 102(1), p.014328_1 - 014328_18, 2020/07
被引用回数:12 パーセンタイル:84.94(Physics, Nuclear)The structure of the doubly magic Sn has been investigated at the ISOLDE facility at CERN, populated both by the -decay of In and -delayed neutron emission of In. The level scheme of Sn is greatly expanded with the addition of 68 -ray transitions and 17 levels. The identification of particle-hole multiplets both for protons and neutrons and the transition rates connecting different particle-hole configurations may provide input on the two-body matrix elements and single-particle states for state-of-the-art calculations.
Piersa, M.*; Korgul, A.*; Benito, J.*; Andreyev, A. N.; 他75名*
Physical Review C, 99(2), p.024304_1 - 024304_10, 2019/02
被引用回数:11 パーセンタイル:73.85(Physics, Nuclear)Excited states in Sn were investigated through the decay of In at the ISOLDE facility. The ISOLDE Resonance Ionization Laser Ion Source (RILIS) provided isomer-selective ionization for In, allowing us to study separately, and in detail, the -decay branch of In = (9/2) ground state and its = (1/2) isomer. Thanks to the large spin difference of the two -decaying states of In, it is possible to investigate separately the lower and higher spin states in the daughter, Sn, and thus to probe independently different single-particle and single-hole levels. We report here new transitions observed in the decay of In, including those assigned to the deexcitation of the neutron-unbound states.