Bulletin of the American Physical Society
6th Joint Meeting of the APS Division of Nuclear Physics and the Physical Society of Japan
Sunday–Friday, November 26–December 1 2023; Hawaii, the Big Island
Session C14: Minisymposium: Fundamental Symmetries I - Atom, Molecule
7:00 PM–10:00 PM,
Tuesday, November 28, 2023
Hilton Waikoloa Village
Room: Kohala 4
Chair: Maxime Brodeur, University of Notre Dame
Abstract: C14.00008 : Progress towards a search for CP-violating nuclear Schiff moments using molecules in solids*
8:45 PM–9:00 PM
Presenter:
Nicholas Nusgart
(Michigan State University)
Authors:
Nicholas Nusgart
(Michigan State University)
Jochen Ballof
(Michigan State University / Facility for Rare Isotope beams)
Aiden Boyer
(FRIB at MSU)
Meyhar Dudeja
(FRIB at MSU)
Sebastian Miki-Silva
(FRIB at MSU)
Jaideep T Singh
(Michigan State University)
The frontend will create and mass-separate molecular ions, such as RaF. Electrospray ionization will be used to create the molecular ions, then a series of ion optics will introduce the ions to vacuum and perform mass separation[4].
The backend will neutralize the ions, co-deposit them in a noble gas matrix, and perform molecular hyperfine spectroscopy, which will ultimately enable an NSM search.
We believe that this approach may be an efficient method for creating and trapping radioactive molecules starting from a precursor solution made available by the Isotope Harvesting Program at FRIB. Our initial goal is to quantify and optimize the efficiency of this approach. Eventually we aim to carry out a sensitive search for the NSM of 225Ra using, for example, RaF molecules in solid argon. We will provide an update on the current status of the instrument as well as calculations relevant to developing an NSM measurement scheme.
[1] A.C. Vutha et al, PRA 98, 032513 (2018).
[1] G. Arrowsmith-Kron et al, (2023), arXiv:2302.02165.
[3] N. Auerbach et al, PRL 76, 4316 (1996).
[4] J. Ballof et al, NIMB 541, 224 (2023).
*This work is supported by the US DOE, Office of Science, Office of Nuclear Physics, under contracts DE-SC0019015 and DE-SC0022299.
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