【摘要】 高温转动核１３２Ｎｄ＊的巨偶极共振研究夏海鸿黄正德侯龙竺礼华丁大钊（中国原子能科学研究院，北京２７５信箱６７分箱１０２４１３）高温转动核随着角动量和温度的形状演化是实验及理论上非常感兴趣的课题，建立在激发态上的巨偶极共振（ＧＤＲ）研究能够提供关...更多还原

【Abstract】 We measured the 100 Ru( 32 S,γ) 132 Nd * reaction at projectile energy of 148MeV at 3 positions: 88.7°/125°,55°/72.5°,107°/107°. The corresponding excitation energy Ex of the compound nucleus 132 Nd * was about 72MeV and its average angular momentum I transferred was about 37. High energy γ rays were detected with two large volume and high efficiency NaI plastic anticoincidence shielded spectrometers. To obtain the small region in the plane (E *,I) in the measurement, a multiplicity filter consisting of 38 hexagonal BGO crystals was used to determine the multiplicity (Mγ) distribution and the nuclear temperature. The GDR parameters were obtained by fitting the experimental spectra with a modified version of the statistical model code CASCADE.更多还原