6He核电荷半径的激光光谱测定
核实验
2011-08-11 v1
摘要
我们对磁光阱中约束并冷却的单个6He（t1/2 = 0.8 s）原子进行了精密激光光谱测量，测得6He和4He之间2 3S1 - 3 3P2跃迁的同位素位移为43,194.772 +/- 0.056 MHz。基于此测量和原子理论，首次以独立于核模型的方法确定了6He的核电荷半径为2.054 +/- 0.014 fm。该结果与多种核结构计算预测的值进行了比较，并检验了它们描述这个松散束缚的晕核的能力。
引用
@article{arxiv.nucl-ex/0408008,
title = {Laser Spectroscopic Determination of the 6He Nuclear Charge Radius},
author = {L. -B. Wang and P. Mueller and K. Bailey and G. W. F. Drake and J. P. Greene and D. Henderson and R. J. Holt and R. V. F. Janssens and C. L. Jiang and Z. -T. Lu and T. P. O'Connor and R. C. Pardo and K. E. Rehm and J. P. Schiffer and X. D. Tang},
journal= {arXiv preprint arXiv:nucl-ex/0408008},
year = {2011}
}