Lifetimes of Rydberg states of Eu atoms*
Jing Huaa),b), Ye Shi-Weia),b), Dai Chang-Jiana),b)
Fig.#cod#x0A0;6. The dependence of lifetime on n #cod#x002A;3 for the 4f 7 6s n p 8 P J or 10 P J Rydberg state; the dots and squares represent the J #cod#x003D; 52 and J #cod#x003D; 112 series, respectively.