论文标题
核电分布的Muonic X射线测量：稳定的钯同位素的情况
Muonic X-Ray Measurement for the Nuclear Charge Distribution: the Case of Stable Palladium Isotopes
论文作者
论文摘要
背景：核电荷半径和分布是原子核的最基本量。从Muonic过渡能量中，绝对电荷半径是实验中获得的，而没有建立的方法来讨论分布。 目的：测量了五个钯同位素的Muonic过渡能量，其中质量数$ a = 104 $，$ 105 $，$ 106 $，$ 108 $和$ 110 $。提出了推断电荷半径的程序和讨论来自Muonic过渡能量的电荷分布的方法。 方法：该实验是在大阪大学的核物理研究中心的Music-M1梁线上进行的。在富集的钯靶标上撞击了连续的万能束。 Muonic X射线是通过高纯度锗探测器测量的。 结果：确定了五个钯同位素的Muonic过渡能量高达$ 4F $ - $ 3D $过渡。 讨论和结论：假设两参数费米分布，可以推断出根平方电荷半径。使用Barrett模型讨论了细胞核的电荷分布。 $ 3D $ - $ 2P $过渡的Muonic过渡能量对于讨论电荷半径和电荷分配至关重要。
Background: The nuclear charge radius and distribution are the most fundamental quantities of the atomic nucleus. From the muonic transition energies, the absolute charge radius has been experimentally obtained, while there have been no established methods to discuss the distribution. Purpose: The muonic transition energies for five palladium isotopes with the mass number $A = 104$, $105$, $106$, $108$ and $110$ were measured. The procedure to deduce the charge radii and the method to discuss the charge distribution from the muonic transition energies are proposed. Method: The experiment was performed at the MuSIC-M1 beamline at Research Center for Nuclear Physics, Osaka University. A continuous muon beam impinged on the enriched palladium targets. Muonic X rays were measured by high-purity germanium detectors. Results: The muonic transition energies up to $4f$-$3d$ transitions were determined for five palladium isotopes. Discussion and conclusion: The root-mean-square charge radii are deduced assuming the two-parameter Fermi distribution. The charge distribution of the nucleus is discussed employing the Barrett model. The muonic transition energies of the $3d$-$2p$ transitions are crucial to discuss both the charge radius and the charge distribution.
