English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse
  1. View item / 
  2. Item Summary

Item

ITEM ACTIONSEXPORT
Add to Basket
  Local TagsRelease HistoryDetailsSummary

Released
Journal Article

High-accuracy measurements of core-excited transitions in light Li-like ions

MPS-Authors
/persons/resource/persons232447

Togawa,  Moto       
Division Prof. Dr. Thomas Pfeifer, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons81223

Shah,  Chintan       
Division Prof. Dr. Thomas Pfeifer, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons281947

Zaytsev,  Vladimir A.
Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons37662

Oreshkina,  Natalia S.       
Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons30299

Bernitt,  Sonja       
Division Prof. Dr. Thomas Pfeifer, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons30659

Keitel,  Christoph H.       
Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons30892

Pfeifer,  Thomas       
Division Prof. Dr. Thomas Pfeifer, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons30383

Crespo López-Urrutia,  José Ramón       
Division Prof. Dr. Thomas Pfeifer, MPI for Nuclear Physics, Max Planck Society;

External Resource

https://journals.aps.org/pra/abstract/10.1103/PhysRevA.110.L030802
(Publisher version)

Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)

2408.12219.pdf
(Preprint), 3MB

Supplementary Material (public)
There is no public supplementary material available
Citation

Togawa, M., Kühn, S., Shah, C., Zaytsev, V. A., Oreshkina, N. S., Buck, J., et al. (2024). High-accuracy measurements of core-excited transitions in light Li-like ions. Physical Review A, 110(3): L030802. doi:10.1103/PhysRevA.110.L030802.


Cite as: https://hdl.handle.net/21.11116/0000-000F-D203-0
Abstract
The transition energies of the two 1s core-excited soft x-ray lines (dubbed q and r) from 1s22s1S1/2 to the respective upper levels 1s(2S)2s2p(3P)2P3/2 and 2P1/2 of Li-like oxygen, fluorine, and neon were measured and calibrated using several nearby transitions of He-like ions. The major remaining source of energy uncertainties in monochromators, the periodic fluctuations produced by imperfect angular encoder calibration, is addressed by a simultaneously running photoelectron spectroscopy measurement. This leads to an improved energy determination of 5 parts per million, showing fair agreement with previous theories as well as with our own, involving a complete treatment of the autoionizing states studied here. Our experimental results translate to an uncertainty of only 1.6 km/s for the oxygen line qr blend used to determine the outflow velocities of active galactic nuclei, ten times smaller than previously possible.