CAJ | 학술논문

利用1244Sn(7Li,4n)127I反应研究了127I核的在束γ谱,建立了包括25个新能级和52条新γ射线构成的新能级纲图.将基于πh.2粒子态(1I/2)的负字称能级推高到(35/2-),在较重的127I核中得到了退耦合能级结构.由于在两个正字称带/△I=2能级系列中观测到了强的带间跃迁,建议此带的主要成分为g7/2质子的组态.另外还观测到了两个正宇称/△I＝2和△I=1能级系列,它们可能基于πrds/2的单准粒子带和一个3准粒子带.
이용1244Sn(7Li,4n)127I반응연구료127I핵적재속γ보,건립료포괄25개신능급화52조신γ사선구성적신능급강도.장기우πh.2입자태(1I/2)적부자칭능급추고도(35/2-),재교중적127I핵중득도료퇴우합능급결구.유우재량개정자칭대/△I=2능급계렬중관측도료강적대간약천,건의차대적주요성분위g7/2질자적조태.령외환관측도료량개정우칭/△I＝2화△I=1능급계렬,타문가능기우πrds/2적단준입자대화일개3준입자대.
Study of in-beam γ-ray spectroscopy of 127 I has been performed using 124 Sn (7Li, 4n)127 I reaction at 32 MeV beam energy.. A new level scheme of 1271 has been established including 25 new levels and 52 new γ transitions. Negative-parity levels based on 11/2- πh 1 1/2 particle state have been observed up to (35/2-) extending our knowledge of decoupled structures to the heavier iodine isotope. Two △I = 2 yTast positive-parity levels have been proposed to be associated mainly with the rπg7/2 configuration due to observations of several strong inter-band transitions. Two weakly populated △I = 2 positive-parity levels and a high-lying △I = 1 cascade have been newly identified and tentatively assigned as πd5/2 one-quasiparticle and three-quasiparticle bands, respectively.``