Radiative lifetime of the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>A</mml:mi></mml:math> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi mathvariant="normal">Π</mml:mi><mml:mrow><mml:mn>1</mml:mn><mml:mo>/</mml:mo><mml:mn>2</mml:mn></mml:mrow><mml:none/><mml:mprescripts/><mml:none/><mml:mn>2</mml:mn></mml:mmultiscripts></mml:math> state in RaF with relevance to laser cooling-Reference-Cited by-同舟云学术

Radiative lifetime of the A Π1/22 state in RaF with relevance to laser cooling

Published:2024-07-22 Issue:1 Volume:110 Page:
ISSN:2469-9926
Container-title:Physical Review A
language:en
Short-container-title:Phys. Rev. A

Author:

Athanasakis-Kaklamanakis M.¹²³^ORCID,Wilkins S. G.⁴⁴,Lassègues P.²,Lalanne L.¹,Reilly J. R.⁵,Ahmad O.²,Au M.¹⁶^ORCID,Bai S. W.⁷,Berbalk J.²,Bernerd C.¹,Borschevsky A.⁸^ORCID,Breier A. A.⁹¹⁰^ORCID,Chrysalidis K.¹,Cocolios T. E.²^ORCID,de Groote R. P.²^ORCID,Fajardo-Zambrano C. M.²^ORCID,Flanagan K. T.⁵⁵^ORCID,Franchoo S.¹¹,Ruiz R. F. Garcia⁴⁴,Hanstorp D.¹²,Heinke R.¹,Imgram P.²^ORCID,Koszorús Á.¹²,Kyuberis A. A.⁸^ORCID,Lim J.³^ORCID,Liu Y. C.⁷,Lynch K. M.⁵^ORCID,McGlone A.⁵^ORCID,Mei W. C.⁷,Neyens G.²^ORCID,Nies L.¹^ORCID,Oleynichenko A. V.¹³^ORCID,Raggio A.¹⁴^ORCID,Rothe S.¹,Skripnikov L. V.¹³^ORCID,Smets E.²,van den Borne B.²^ORCID,Warbinek J.¹⁵⁶,Wessolek J.⁵¹^ORCID,Yang X. F.⁷^ORCID

Affiliation:

1. CERN

2. KU Leuven

3. Imperial College London

4. Massachusetts Institute of Technology

5. University of Manchester

6. Johannes Gutenberg-Universität Mainz

7. Peking University

8. University of Groningen

9. Technische Universität Berlin

10. University of Kassel

11. University Paris-Saclay

12. University of Gothenburg

13. Affiliated with an institute covered by a cooperation agreement with CERN

14. University of Jyväskylä

15. GSI Helmholtzzentrum für Schwerionenforschung GmbH

Abstract

The radiative lifetime of the AΠ1/22 (v=0) state in radium monofluoride (RaF) is measured to be 35(1) ns. The lifetime of this state and the related decay rate Γ=2.86(8)×107 s−1 are of relevance to the laser cooling of RaF via the optically closed AΠ1/22←XΣ1/22 transition, which makes the molecule a promising probe to search for new physics. RaF is found to have a comparable photon-scattering rate to homoelectronic laser-coolable molecules. Owing to its highly diagonal Franck-Condon matrix, it is expected to scatter an order of magnitude more photons than other molecules when using just three cooling lasers, before it decays to a dark state. The lifetime measurement in RaF is benchmarked by measuring the lifetime of the 8P3/2 state in Fr to be 83(3) ns, in agreement with literature.

Published by the American Physical Society

2024

Funder

Horizon 2020

Fonds Wetenschappelijk Onderzoek

KU Leuven

Science and Technology Facilities Council

Nuclear Physics

U.S. Department of Energy

Vetenskapsrådet

National Natural Science Foundation of China

Publisher