Deller, A;
Alonso, AM;
Cooper, BS;
Hogan, SD;
Cassidy, DB;
(2016)
Measurement of Rydberg positronium fluorescence lifetimes.
Physical Review A
, 93
(6)
, Article 062513. 10.1103/PhysRevA.93.062513.
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Abstract
We report measurements of the fluorescence lifetimes of positronium (Ps) atoms with principal quantum numbers n=10–19. Ps atoms in Rydberg-Stark states were produced via a two-color two-step 1S3→2P3→nS3/nD3 excitation scheme and subsequently detected after traveling 1.2 m. The measured time-of-flight distributions were used to determine the mean lifetimes of the Rydberg levels, yielding values ranging from 3μs to 26μs. Our data are in accord with the expected radiative lifetimes of Rydberg-Stark states of Ps.
| Type: | Article |
|---|---|
| Title: | Measurement of Rydberg positronium fluorescence lifetimes |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevA.93.062513 |
| Publisher version: | https://doi.org/10.1103/PhysRevA.93.062513 |
| Language: | English |
| Additional information: | © 2016 American Physical Society. V. Zhelyazkova and S. D. Hogan: Preparation of circular Rydberg states in helium using the crossed-fields method, in: PHYSICAL REVIEW A 94, 023415 (2016). The final publication is available at APS via https://doi.org/10.1103/PhysRevA.93.062513 |
| Keywords: | Science & Technology, Physical Sciences, Optics, Physics, Atomic, Molecular & Chemical, Physics, Annihilation Lifetime, Slow Positrons, Decay-Rate, P-State, Interval, Spectroscopy, Precision, Excitation, Surfaces, Silica |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1505158 |
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