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Kaya, L.*; Vogt, A.*; Reiter, P.*; Siciliano, M.*; 清水 則孝*; 宇都野 穣; Wang, H.-K.*; Gargano, A.*; Coraggio, L.*; Itaco, N.*; et al.
Physical Review C, 100(2), p.024323_1 - 024323_18, 2019/08
被引用回数:12 パーセンタイル:77.09(Physics, Nuclear)Baの高スピン状態をおよび反応によって生成し、そこからの脱励起ガンマ線を観測した。Baの1942keVのアイソマーの寿命を66.6(20)nsと決定し、Baのよりの高スピン状態を見つけた。この結果を殻模型計算と比較し、Baのとの間隔やとの間隔が広がるなどの特徴が計算によってよく再現できることがわかった。
Rgis, J.-M.*; Jolie, J.*; Saed-Samii, N.*; Warr, N.*; Pfeiffer, M.*; Blanc, A.*; Jentschel, M.*; Kster, U.*; Mutti, P.*; Soldner, T.*; et al.
Physical Review C, 90(6), p.067301_1 - 067301_4, 2014/12
被引用回数:23 パーセンタイル:80.23(Physics, Nuclear)A smooth onset of collectivity in Kr has been determined from reported and E(2) values. This is in contrast to the sudden onset in even-even Zr, Mo, and Sr isotopes. Our objective was to complete the systematics by determining the value in Kr, which was produced by cold-neutron-induced fission of U. The lifetime of the 2 state in Kr was measured via the electronic timing technique using the EXILL and FATIMA spectrometers. Based on the measured mean lifetime of = 15(10) ps, the value of 13 W.u. in Kr is determined for the first time and the smooth onset of deformation in the even-even Kr isotopes beyond neutron number N=50 is confirmed.