Spectroscopy of short-lived radioactive molecules
Garcia Ruiz, R., Berger, R., Billowes, J., Binnersley, C., Bissell, M., Breier, A., Brinson, A., Chrysalidis, K., Cocolios, T., Cooper, B., Flanagan, K., Giesen, T., de Groote, R., Franchoo, S., Gustafsson, F., Isaev, T., Koszorús, Á., Neyens, G., Perrett, H., . . . Yang, X. (2020). Spectroscopy of short-lived radioactive molecules. Nature, 581(7809), 396-400. https://doi.org/10.1038/s41586-020-2299-4
© The Authors, 2020
Molecular spectroscopy offers opportunities for the exploration of the fundamental laws of nature and the search for new particle physics beyond the standard model1–4. Radioactive molecules—in which one or more of the atoms possesses a radioactive nucleus—can contain heavy and deformed nuclei, offering high sensitivity for investigating parity- and time-reversal-violation effects5,6. Radium monofluoride, RaF, is of particular interest because it is predicted to have an electronic structure appropriate for laser cooling6, thus paving the way for its use in high-precision spectroscopic studies. Furthermore, the effects of symmetry-violating nuclear moments are strongly enhanced5,7–9 in molecules containing octupole-deformed radium isotopes10,11. However, the study of RaF has been impeded by the lack of stable isotopes of radium. Here we present an experimental approach to studying short-lived radioactive molecules, which allows us to measure molecules with lifetimes of just tens of milliseconds. Energetically low-lying electronic states were measured for different isotopically pure RaF molecules using collinear resonance ionisation at the ISOLDE ion-beam facility at CERN. Our results provide evidence of the existence of a suitable laser-cooling scheme for these molecules and represent a key step towards high-precision studies in these systems. Our findings will enable further studies of short-lived radioactive molecules for fundamental physics research. ...
PublisherNature Publishing Group
Publication in research information system
MetadataShow full item record
Related funder(s)European Commission
The content of the publication reflects only the author’s view. The funder is not responsible for any use that may be made of the information it contains.
Additional information about fundingEuropean Union grant agreement no. 654002 (ENSAR2)
Showing items with similar title or keywords.
Udrescu, S. M.; Brinson, A. J.; Garcia Ruiz, R. F.; Gaul, K.; Berger, R.; Billowes, J.; Binnersley, C. L.; Bissell, M. L.; Breier, A. A.; Chrysalidis, K.; Cocolios, T. E.; Cooper, B. S.; Flanagan, K. T.; Giesen, T. F.; de Groote, R. P.; Franchoo, S.; Gustafsson, F. P.; Isaev, T. A.; Koszorús, Á.; Neyens, G.; Perrett, H. A.; Ricketts, C. M.; Rothe, S.; Vernon, A. R.; Wendt, K. D. A.; Wienholtz, F.; Wilkins, S. G.; Yang, X. F. (American Physical Society (APS), 2021)Isotope shifts of 223–226,228Ra19F were measured for different vibrational levels in the electronic transition A2Π1/2←X2Σ+. The observed isotope shifts demonstrate the particularly high sensitivity of radium monofluoride ...
Exploring the self-assembly of resorcinarenes : from molecular level interactions to mesoscopic structures Helttunen, Kaisa (University of Jyväskylä, 2012)
Krupa, Justy; Kosendiak, Iwona; Wierzejewska, Maria; Ahokas, Jussi; Lundell, Jan (Elsevier, 2021)The photochemistry of matrix-isolated glycolic acid, induced by UV light, was studied by FTIR spectroscopy and B3LYPD3/6-311++G(3df,3pd) calculations. Several decomposition pathways were found to take place upon 212 nm and ...
Ahokas, Jussi; Kosendiak, Iwona; Krupa, Justyna; Wierzejewska, Maria; Lundell, Jan (Elsevier BV, 2019)High overtone excitation induced conformational isomerization of glycolic acid – nitrogen complex in an argon matrix was investigated by Raman spectroscopy. The interaction between glycolic acid and nitrogen change the ...
Vernon, A. R.; de Groote, Ruben; Billowes, J.; Binnersley, C. L.; Cocolios, T. E.; Farooq-Smith, G. J.; Flanagan, K. T.; Ruiz, R. F. Garcia; Gins, W.; Koszorús, Á.; Neyens, G.; Ricketts, C. M.; Smith, A. J.; Wilkins, S. G.; Yang, X. F. (Elsevier BV, 2020)