The SNS neutron EDM experiment - 8th International UCN ...

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EDM sensitivity: statistics∆E + δE= −⃗µ·⃗B − ⃗ d·⃗EΩ L ± δΩ L = γ B B ± γ E EIf state of n completely specified byexisting quantum numbers, ⃗ d ‖ ⃗µPark (for nEDM collaboration) (UC Berkeley) SNS nEDM experiment 7th UCN workshop 5 / 29
EDM sensitivity: statistics∆E + δE= −⃗µ·⃗B − ⃗ d·⃗EΩ L ± δΩ L = γ B B ± γ E EIf state of n completely specified byexisting quantum numbers, ⃗ d ‖ ⃗µSensitivity: δΩ L ∝1E √ NτTThe SNS experiment:E ≈ 50 kV/cmN ≈ 150 per cm 3 × 3000 cm 3τ ≈ 500 s for each measurementT ≈ 300 live days for initial duration ofthe experiment2π × δΩ L ≈ 2.6 µHzHigh electric field and density madepossible by keeping neutrons insuperfluid heliumHigh voltage (≈ 500 kV) is producedwithout an actual high voltage supply withgain capacitorsPark (for nEDM collaboration) (UC Berkeley) SNS nEDM experiment 7th UCN workshop 5 / 29
Page 1 and 2: The SNS neutron EDM experiment: ove
Page 3 and 4: State of the neutron EDMCurrently:
Page 5 and 6: SNS experiment: distinguishing feat
Page 7: EDM sensitivity: statistics∆EΩ L
Page 11 and 12: SNS nEDM experiment: UCN sourceBeam
Page 13 and 14: SNS nEDM experiment: 3 He neutron d
Page 15 and 16: SNS nEDM experiment: Measurement Cy
Page 17 and 18: Measurement CellPark (for nEDM coll
Page 19 and 20: ApparatusPark (for nEDM collaborati
Page 21 and 22: Building (April 2009)Park (for nEDM
Page 23 and 24: The nEDM collaborationM. Ahmed 7 ,
Page 25 and 26: Optical access for Kerr monitorsmal
Page 27 and 28: Kerr monitor: demonstration in a mo
Page 29 and 30: Kerr monitor: implementation within
Page 31 and 32: Kerr monitor: implementation within
Page 33: SummaryThe nEDM collaboration plans

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