Research output: Contribution to journal › Article › peer-review
Quantum interference of K capture in energetic Ge31+(1s)-Kr collisions. / Schuch, R.; Schulz, M.; Kozhedub, Y. S.; Shabaev, V. M.; Tupitsyn, I. I.; Plunien, G.; Mokler, P. H.; Schmidt-Boecking, H.
In: Physical Review A, Vol. 101, No. 4, 042701, 02.04.2020.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Quantum interference of K capture in energetic Ge31+(1s)-Kr collisions
AU - Schuch, R.
AU - Schulz, M.
AU - Kozhedub, Y. S.
AU - Shabaev, V. M.
AU - Tupitsyn, I. I.
AU - Plunien, G.
AU - Mokler, P. H.
AU - Schmidt-Boecking, H.
N1 - Funding Information: This work was supported by RFBR (Grants No. 18-32-20063 and No. 18-03-01220) and by SPbSU-DFG (Grants No. 11.65.41.2017 and No. STO 346/5-1) and by using computational resources provided by the Resource Center “Computer Center of SPbSU”. Y.S.K. acknowledges support from SPbSU (COLLAB 2019: No. 41160833), and V.M.S. the support by the Foundation for the Advancement of Theoretical Physics and Mathematics “BASIS.” M.S. was supported by a grant from NSF (Grant No. PHY-1703109). Publisher Copyright: © 2020 authors. Published by the American Physical Society.
PY - 2020/4/2
Y1 - 2020/4/2
N2 - We have measured characteristic K x rays in coincidence with the scattered particles from collisions of hydrogenlike Ge ions with Kr atoms. The ions were first accelerated to 8.6 MeV/amu, post-stripped to H-like charge state, and decelerated to around 2.5 MeV/amu. From the measurements the probabilities for K-shell to K-shell charge transfer as a function of collision impact parameters were obtained. The probabilities show an onset of oscillations which are interpreted as quantum interference between the K-shell to K-shell electron transfer amplitudes in two spatially separated coupling regions in the incoming and outgoing parts of the collision. The probabilities of K-shell vacancy distribution created by the collision are calculated within a relativistic independent electron model using the coupled-channel approach with atomlike Dirac-Fock-Sturm orbitals. A reasonable agreement between the theoretical results and the experimental data is found.
AB - We have measured characteristic K x rays in coincidence with the scattered particles from collisions of hydrogenlike Ge ions with Kr atoms. The ions were first accelerated to 8.6 MeV/amu, post-stripped to H-like charge state, and decelerated to around 2.5 MeV/amu. From the measurements the probabilities for K-shell to K-shell charge transfer as a function of collision impact parameters were obtained. The probabilities show an onset of oscillations which are interpreted as quantum interference between the K-shell to K-shell electron transfer amplitudes in two spatially separated coupling regions in the incoming and outgoing parts of the collision. The probabilities of K-shell vacancy distribution created by the collision are calculated within a relativistic independent electron model using the coupled-channel approach with atomlike Dirac-Fock-Sturm orbitals. A reasonable agreement between the theoretical results and the experimental data is found.
KW - SHELL EXCITATION
KW - VACANCY TRANSFER
KW - ELECTRON
KW - SPECTROSCOPY
KW - DEPENDENCE
KW - EXCHANGE
UR - http://www.scopus.com/inward/record.url?scp=85085189829&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/424f62ee-d5e2-3421-8ad4-909ca0cd25a6/
U2 - 10.1103/PhysRevA.101.042701
DO - 10.1103/PhysRevA.101.042701
M3 - статья
VL - 101
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
SN - 1050-2947
IS - 4
M1 - 042701
ER -
ID: 52935220