Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
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.
Jentschel, M.*; Blanc, A.*; de France, G.*; Kster, U.*; Leoni, S.*; Mutti, P.*; Simpson, G.*; Soldner, T.*; Ur, C.*; Urban, W.*; et al.
Journal of Instrumentation (Internet), 12(11), p.P11003_1 - P11003_33, 2017/11
被引用回数:38 パーセンタイル:85.29(Instruments & Instrumentation)A highly efficient array of high-purity germanium (HPGe) detectors was developed and operated at the cold neutron beam facility PF1B of the Institut Laue-Langevin (ILL) to carry out nuclear structure studies, via measurements of -rays following neutron-induced capture and fission reactions. The setup consisted of a collimation system producing a pencil beam with a thermal capture equivalent flux of about 10nscm at the target position and negligible neutron halo. The target was surrounded by an array of eight to ten anti-Compton shielded EXOGAM Clover detectors, four to six anti-Compton shielded large coaxial GASP detectors and two standard Clover detectors. For a part of the campaign the array was combined with 16 LaBr:(Ce) detectors from the FATIMA collaboration.
Lic, R.*; Mach, H.*; Fraile, L. M.*; Gargano, A.*; Borge, M. J. G.*; Mrginean, N.*; Sotty, C. O.*; Vedia, V.*; Andreyev, A. N.; Benzoni, G.*; et al.
Physical Review C, 93(4), p.044303_1 - 044303_7, 2016/04
被引用回数:6 パーセンタイル:39.28(Physics, Nuclear)The levels in Sn populated from the decay of In isomers were investigated at the ISOLDE facility of CERN using the newly commissioned ISOLDE Decay Station. The lowest 1/2 state and the 3/2 ground state in Sn are expected to have configurations dominated by the neutron (=0) and (=2) single-particle states, respectively. Consequently, these states should be connected by a somewhat slow -forbidden transition. Using fast-timing spectroscopy we have measured the half-life of the 1/2 315.3-keV state, = 19(10) ps, which corresponds to a moderately fast transition. Shell-model calculations using the CD-Bonn effective interaction, with standard effective charges and factors, predict a 4-ns half-life for this level. We can reconcile the shell-model calculations to the measured value by the renormalization of the effective operator for neutron holes.