A约为135区域中高度变形结构的四极矩：探测旋转势中的单粒子运动
Quadrupole moments of highly deformed structures in the A approximately 135 region: probing the single-particle motion in a rotating potential.
作者信息
Laird R W, Kondev F G, Riley M A, Archer D E, Brown T B, Clark R M, Devlin M, Fallon P, Hartley D J, Hibbert I M, Joss D T, LaFosse D R, Nolan P J, O'Brien N J, Paul E S, Pfohl J, Sarantites D G, Sheline R K, Shepherd S L, Simpson J, Wadsworth R, Matev M T, Afanasjev A V, Dobaczewski J, Lalazissis G A, Nazarewicz W, Satuła W
机构信息
Department of Physics, Florida State University, Tallahassee, Florida 32306, USA.
出版信息
Phys Rev Lett. 2002 Apr 15;88(15):152501. doi: 10.1103/PhysRevLett.88.152501. Epub 2002 Mar 27.
The latest generation gamma-ray detection system, GAMMASPHERE, coupled with the Microball charged-particle detector, has made possible a new class of nuclear lifetime measurement. For the first time differential lifetime measurements free from common systematic errors for over 15 different nuclei ( >30 rotational bands in various isotopes of Ce, Pr, Nd, Pm, and Sm) have been extracted at high spin within a single experiment. This comprehensive study establishes the effective single-particle transition quadrupole moments in the A approximately 135 light rare-earth region. Detailed comparisons are made with theoretical calculations using the self-consistent cranked mean-field theory which convincingly demonstrates the validity of the additivity of single-particle quadrupole moments in this mass region.
最新一代的伽马射线探测系统GAMMASPHERE与微球带电粒子探测器相结合，使得一类新的核寿命测量成为可能。首次在单个实验中，于高自旋态下提取了超过15种不同原子核（铈、镨、钕、钷和钐的各种同位素中的>30个转动带）的无共同系统误差的微分寿命测量结果。这项全面的研究确定了A约为135的轻稀土区域内有效的单粒子跃迁四极矩。使用自洽的推转平均场理论与理论计算进行了详细比较，令人信服地证明了该质量区域中单粒子四极矩相加性的有效性。
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