Progress Towards Laser Trapping of 225Ra for an Electric Dipole Moment Measurement

Journal Article · Tue Jul 11 00:00:00 EDT 2006 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2220382· OSTI ID:20875827

Scielzo, N D; Ahmad, I; Bailey, K; Guest, J R; Holt, R J; O'Connor, T P; Potterveld, D H; Schulte, E C ^[1]; Bowers, D L ^[2]; Lu, Z -T ^[1]

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1. Physics Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439 (United States)
2. Chemical Engineering Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439 (United States)

Many extensions to the Standard Model, such as supersymmetry, predict electric dipole moments (EDMs) just below current experimental sensitivity. In 225Ra, which has an octupole-deformed nucleus, the signature of an EDM is expected to be amplified by two to three orders of magnitude relative to previously studied systems. We plan to collect 225Ra atoms in a magneto-optical trap and transfer the sample to an optical dipole trap where the EDM measurement can be performed. To this end, we have measured the absolute 1S0(F=1/2){r_reversible}3P1(F=3/2) transition frequency and determined the lifetime of the lowest 3P1 state in 225Ra. Development of a magneto-optical trap based on this transition is underway.

• OSTI ID: 20875827
• Journal Information: AIP Conference Proceedings, Vol. 842, Issue 1; Conference: 17. international conference on particles and nuclei, Santa Fe, NM (United States), 23-30 Oct 2005; Other Information: DOI: 10.1063/1.2220382; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ATOMS
DEFORMED NUCLEI
DIPOLES
ELECTRIC DIPOLE MOMENTS
LASER RADIATION
LIFETIME
MAGNETO-OPTICAL EFFECTS
NUCLEAR ELECTRIC MOMENTS
OCTUPOLES
RADIUM
RADIUM 225
SENSITIVITY
STANDARD MODEL
SUPERSYMMETRY
TRAPPING
TRAPS