Lifetimes of Rydberg states of Eu atoms*
Jing Huaa),b), Ye Shi-Weia),b), Dai Chang-Jiana),b)
Fig.#cod#x0A0;4. The lifetime of 4f 7 6s28p 8 P J or 10 P J state with J #cod#x003D; 52 at E #cod#x003D; 45541.85#cod#x0A0;cm #cod#x2212;1 .