4 papers
Direct Extraction of Nuclear Structure Information Using Precision Lithium-Ion Spectroscopy
Hua Guan, Xiao-Qiu Qi, Jian-Guo Li +14
Accurately describing nuclear interactions within atomic nuclei remains a challenge, which hinders our exploration of new physics beyond the Standard Model. However, these nuclear…
Theory for the Rydberg states of helium: Comparison with experiment for the state ()
Aaron T. Bondy, G. W. F. Drake, Cody McLeod +3
Recent measurements of the ionization energies of the Rydberg states of helium for principal quantum number and higher present a new challenge to theoretical atomic…
Revised He nuclear charge radius due to electronic hyperfine mixing
Xiao-Qiu Qi, Pei-Pei Zhang, Zong-Chao Yan +4
The significant discrepancy in the difference of squared nuclear charge radii of He obtained from electronic-atom or muonic-atom energy levels is a puzzle. In this…
A Simple approach for precision calculation of Bethe logarithm
San-Jiang Yang, Jing Chi, Wan-Ping Zhou +4
In this article we propose a simple approach for the precision calculation of Bethe logarithm. The leading contributions are obtained using specific operators, while the remaining…