TY - JOUR
T1 - Absolute measurement of the relativistic magnetic dipole transition energy in heliumlike argon
AU - Amaro, Pedro
AU - Schlesser, Sophie
AU - Guerra, Mauro
AU - Le Bigot, Eric Olivier
AU - Isac, Jean Michel
AU - Travers, Pascal
AU - Santos, José Paulo
AU - Szabo, Csilla I.
AU - Gumberidze, Alexandre
AU - Indelicato, Paul
N1 - Laboratoire Kastler Brossel is "UMR No. 8552'' of the ENS, CNRS, and UPMC. Our ECRIS has been financed by grants from CNRS, MESR, and UPMC. The experiment is supported by grants from BNM No. 01 3 0002, the ANR No. ANR-06-BLAN-0223, the Helmholtz Alliance No. HA216/EMMI, the FCT (PTDC/FIS/117606/2010 and PEst-OE/FIS/UI0303/2011, CFA), the PESSOA Program No. 441.00, the Accoes Integradas Luso-Francesas No. F-11/09, and the Programme Hubert Curien PESSOA No. 20022VB. P. A. and M. G. acknowledge the support of the FCT, Contracts No. SFRH/BD/37404/2007 and No. SFRH/BD/38691/2007.
PY - 2012/7/27
Y1 - 2012/7/27
N2 - The 1s2sS13→1s2S01 relativistic magnetic dipole transition in heliumlike argon, emitted by the plasma of an electron-cyclotron resonance ion source, has been measured using a double-flat crystal x-ray spectrometer. Such a spectrometer, used for the first time on a highly charged ion transition, provides absolute (reference-free) measurements in the x-ray domain. We find a transition energy of 3104.1605(77) eV (2.5 ppm accuracy). This value is the most accurate, reference-free measurement done for such a transition and is in good agreement with recent QED predictions.
AB - The 1s2sS13→1s2S01 relativistic magnetic dipole transition in heliumlike argon, emitted by the plasma of an electron-cyclotron resonance ion source, has been measured using a double-flat crystal x-ray spectrometer. Such a spectrometer, used for the first time on a highly charged ion transition, provides absolute (reference-free) measurements in the x-ray domain. We find a transition energy of 3104.1605(77) eV (2.5 ppm accuracy). This value is the most accurate, reference-free measurement done for such a transition and is in good agreement with recent QED predictions.
UR - http://www.scopus.com/inward/record.url?scp=84864481893&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.109.043005
DO - 10.1103/PhysRevLett.109.043005
M3 - Article
C2 - 23006085
AN - SCOPUS:84864481893
SN - 0031-9007
VL - 109
JO - Physical Review Letters
JF - Physical Review Letters
IS - 4
M1 - 043005
ER -