TY - JOUR
T1 - Single-photon excitation of Kα in heliumlike Kr34+
T2 - Results supporting quantum electrodynamics predictions
AU - Epp, S. W.
AU - Steinbrügge, R.
AU - Bernitt, S.
AU - Rudolph, J. K.
AU - Beilmann, C.
AU - Bekker, H.
AU - Müller, A.
AU - Versolato, O. O.
AU - Wille, H. C.
AU - Yavaş, H.
AU - Ullrich, J.
AU - Crespo López-Urrutia, J. R.
PY - 2015/8/12
Y1 - 2015/8/12
N2 - We study two fundamental transitions from the ground state S01 to P11 (w line) and P13 (y line) in heliumlike Kr34+ by resonant single-photon excitation using an electron-beam ion trap and monochromatic x rays at PETRA III. Our results for the transition energies E(w)=13114.47(14) eV and E(y)=13026.15(14) eV are in excellent agreement with quantum electrodynamics calculations, but disagree for w with the average of the hitherto reported experimental results E¯Lit(w)=13115.15(17) eV. Independently of any energy calibration, we obtain a value E(w)/E(y)=1.006780(7), also in consistency with predictions.
AB - We study two fundamental transitions from the ground state S01 to P11 (w line) and P13 (y line) in heliumlike Kr34+ by resonant single-photon excitation using an electron-beam ion trap and monochromatic x rays at PETRA III. Our results for the transition energies E(w)=13114.47(14) eV and E(y)=13026.15(14) eV are in excellent agreement with quantum electrodynamics calculations, but disagree for w with the average of the hitherto reported experimental results E¯Lit(w)=13115.15(17) eV. Independently of any energy calibration, we obtain a value E(w)/E(y)=1.006780(7), also in consistency with predictions.
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U2 - 10.1103/PhysRevA.92.020502
DO - 10.1103/PhysRevA.92.020502
M3 - Article
AN - SCOPUS:84939427780
SN - 1050-2947
VL - 92
JO - Physical Review A. Atomic, Molecular and Optical Physics
JF - Physical Review A. Atomic, Molecular and Optical Physics
IS - 2
M1 - 020502
ER -