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TRIUMF Canada's National Laboratory for Particle and Nuclear Physics

Radon-EDM Experiment or Why Atoms Sarah Nuss-Warren, Eric Tardiff, Casey Schneider-Mizell (University of Michigan) Norbert Pietralla, Georgi Rainovski, Gene Sprouse (SUNY Stony Brook) John Behr, Matt Pearson (TRIUMF).

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TRIUMF Canada's National Laboratory for Particle and Nuclear Physics

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  1. Radon-EDM ExperimentorWhy AtomsSarah Nuss-Warren, Eric Tardiff, Casey Schneider-Mizell (University of Michigan)Norbert Pietralla, Georgi Rainovski, Gene Sprouse (SUNY Stony Brook)John Behr, Matt Pearson (TRIUMF) TRIUMF E929Spokesmen: Timothy Chupp & Carl SvenssonMike Hayden (SFU), Andrew Phillips (Guelph) ) Wolfgang Lorenzon (Michigan)Gordon Ball, Greg Hackman, Martin Smith (TRIUMF (Guelph, Michigan, SFU, TRIUMF) E-929 Collaboration TRIUMF Canada's National Laboratory for Particle and Nuclear Physics Funding: NSF-Focus Center, DOE, NRC (TRIUMF), NSERC

  2. Atomic Electric Dipole MomentSeparation of Charge along J: d=gdJ EDM Motivations Undiscovered Study CP violation: mass scale Signal of NEW PHYSICS (beyond SM - CKM) Cosmological Baryon Asymmetry

  3. S ~ <+|hr3cos q|-> ~ hb2b23ZA2/3r03 E+ - E- E+ - E- 1 √2 |y±>= ____ ( |a> ± |b> ) Octupole Deformation-Parity Doublets(see Feynman vol 3.) NH3 |a> b3 |b> + - - + - E - J - + - +

  4. Atomic EDMs(Elementary Particle Interactions Polarize Atoms) CP-odd lagrangian HIGGS SUSY LR Strong CP viol. quark Level de Dq  GG QQCD nucleon level dn Nucleus level dN S (MQM) atomic EDM dA (paramag) CS(e-N) ~Z3 dA (diamag) CT(e-N) ~Z2 Probed by atomic electrons S=(1/10) <r2 rP>-(1/6Z)<r2><rp> Schiff Moment (dA~Z) } { Current UPPER Limits de dn S qQCDhqq CS CT 2x10-276x10-26 3x10-11 7x10-10 5x10-6/2x10-52x10-7 2x10-8 Tl n Hg Hg Hg/nTl Hg

  5. Studies with 209Rn @ Stony Brook 197Au 209Fr (50 s) 5 kV heating ~100 MeV 16O HPGe1 1. Make 209Fr and implant in foil 2. 209Fr (50s) _> 209Rn (28.5 m) 3. Heat foil: release to target chamber 4. Freeze to cold finger 5. PUSH to cell (buffer gas) 6. Get about 500,000 209Rn in cell HPGe2 Laser: LDA

  6. Radon EDM Summary Noble gas collected and transferred to cell on-line - High efficiency: 43% is 3/4 of emax (@TRIUMF) 209Rn polarized once again w. Systematic studies/calibrations underway 223Rn EDM projections (t2=100 s - 30 s) Gamma Anisotropy (A=0.2 0.1) Ng= 2x1012 (Tigress count rate limit - 3 months) sd = 1x10-26 e-cm (10x better than 199Hg) Beta Asymmetry Rate sd (100 days) 2x107 1x10-27e-cm TRIUMF 109 1x10-28e-cm RIA

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