Research output: Contribution to journal › Article › peer-review
State-selective nonradiative electron capture in collisions of 95-197-MeV/u Xe54+ with Kr and Xe. / Yang, Bian; Yu, Deyang; Shao, Caojie; Cai, Xiaohong; Wu, Zhongwen; Xie, Luyou; Lyashchenko, Konstantin N.; Kozhedub, Yury S.; Ma, Kun; Xue, Yingli; Wang, Wei; Zhang, Mingwu; Liu, Junliang; Lu, Rongchun; Song, Zhangyong; Wu, Yehong; Ruan, Fangfang; Zhang, Yuezhao; Dong, Chenzhong; Yang, Zhihu.
In: Physical Review A, Vol. 104, No. 3, 032815, 13.09.2021.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - State-selective nonradiative electron capture in collisions of 95-197-MeV/u Xe54+ with Kr and Xe
AU - Yang, Bian
AU - Yu, Deyang
AU - Shao, Caojie
AU - Cai, Xiaohong
AU - Wu, Zhongwen
AU - Xie, Luyou
AU - Lyashchenko, Konstantin N.
AU - Kozhedub, Yury S.
AU - Ma, Kun
AU - Xue, Yingli
AU - Wang, Wei
AU - Zhang, Mingwu
AU - Liu, Junliang
AU - Lu, Rongchun
AU - Song, Zhangyong
AU - Wu, Yehong
AU - Ruan, Fangfang
AU - Zhang, Yuezhao
AU - Dong, Chenzhong
AU - Yang, Zhihu
N1 - Publisher Copyright: © 2021 American Physical Society.
PY - 2021/9/13
Y1 - 2021/9/13
N2 - Lyman transitions of Xe53+∗ produced by nonradiative electron capture in collisions of 95, 146, and 197 MeV/uXe54+ ions with Kr and Xe atoms have been studied experimentally. It shows that the captured electrons preferentially populate lower states. The intensity ratios I(Ly-β)/I(Ly-α) and I(Ly-γ)/I(Ly-α) are found to decrease with increasing projectile velocity, and the ratios for Xe decrease faster than those of Kr. The obtained results are compared with the relative cross sections calculated with the relativistic eikonal approximation. For both targets, the theoretical results overestimate the experimental ratio I(Ly-β)/I(Ly-α) but underestimate I(Ly-γ)/I(Ly-α). Moreover, the theory gives parallel decreasing curves for the two targets, which does not agree with the present experiment. In order to well understand the experimental findings, a more sophisticated theoretical approach is urgently required.
AB - Lyman transitions of Xe53+∗ produced by nonradiative electron capture in collisions of 95, 146, and 197 MeV/uXe54+ ions with Kr and Xe atoms have been studied experimentally. It shows that the captured electrons preferentially populate lower states. The intensity ratios I(Ly-β)/I(Ly-α) and I(Ly-γ)/I(Ly-α) are found to decrease with increasing projectile velocity, and the ratios for Xe decrease faster than those of Kr. The obtained results are compared with the relative cross sections calculated with the relativistic eikonal approximation. For both targets, the theoretical results overestimate the experimental ratio I(Ly-β)/I(Ly-α) but underestimate I(Ly-γ)/I(Ly-α). Moreover, the theory gives parallel decreasing curves for the two targets, which does not agree with the present experiment. In order to well understand the experimental findings, a more sophisticated theoretical approach is urgently required.
KW - RELATIVISTIC HEAVY-IONS
KW - ATOMIC-COLLISIONS
KW - CHARGE-EXCHANGE
KW - CROSS-SECTIONS
KW - HIRFL-CSR
KW - H-LIKE
KW - STORAGE
KW - TARGET
KW - MICROJET
UR - http://www.scopus.com/inward/record.url?scp=85114897608&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/46bb7aff-e9e6-3451-9347-2bb19bb48891/
U2 - 10.1103/physreva.104.032815
DO - 10.1103/physreva.104.032815
M3 - Article
AN - SCOPUS:85114897608
VL - 104
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
SN - 1050-2947
IS - 3
M1 - 032815
ER -
ID: 87675921