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A Future Neutrino Oscillation Experiment at the SNS

A Future Neutrino Oscillation Experiment at the SNS. The More Experiments the Merrier - Neutrinos are Free! Search for Physics Beyond the Standard Model Antineutrinos at SNS Complement Neutrinos at FNAL Present Neutrino Oscillation Evidence - 3 D m 2 Problem!

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A Future Neutrino Oscillation Experiment at the SNS

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  1. A Future Neutrino Oscillation Experiment at the SNS • The More Experiments the Merrier - Neutrinos are Free! • Search for Physics Beyond the Standard Model • Antineutrinos at SNS Complement Neutrinos at FNAL • Present Neutrino Oscillation Evidence - 3 Dm2 Problem! • Brief Description of MiniBooNE Detector Facility • Future Neutrino Oscillation Experiment Duplicate of MiniBooNE Located at 50-100 m (Dm2 < 1 eV2) Performance (~400 oscillation events in ~1 year!) Cost & Schedule (construction ~ $11.3 M & ~ 2.8 y)

  2. Current State of Neutrino Oscillation Evidence 3 Dm2 Problem! Physics Beyond the Standard Model!?!

  3. 3+2 Model Sorel, Conrad, & Shaevitz hep-ph/0305255

  4. 3+2 Model Sorel, Conrad, & Shaevitz hep-ph/0305255

  5. CPT Violation Model Barenboim, Borissov, & Lykken hep-ph/0212116

  6. MiniBooNE is Working Well!

  7. A Future Neutrino Oscillation Experiment at the SNS • Search for & Measure Physics Beyond the Standard Model (probably contingent on MiniBooNE confirming LSND) • SNS provides "FREE" neutrinos! • Build a duplicate copy of MiniBooNE with a few changes: Higher PMT coverage: 10% -> 25% (~4000 PMTs) Addition of ~0.03 g/l of b-PBD to the oil Distance of ~50-100 m to cover Dm2 < 1 eV2 • Detector design and R&D have been completed! • Cost ~ $11.3M (including contingency & escalation) • Schedule ~ 2.8 years construction • Estimate performance by scaling up from LSND (x5 larger) ~400 oscillation events after ~1 year (28K C) ~10 background neutrino events

  8. Oscillation Background Much Lower Than LSND! LSND SNSOSC Signal 87.9+-22.4+-60 ~440 DAR BKGD* 20 ~10 DIF BKGD 10 ~0 * DAR BKGD is much lower due to 75 m (x6) & less ne(x2)

  9. Conclusion • A "duplicate" of MiniBooNE at SNS can probe Physics Beyond the Standard Model! • Neutrinos are "FREE" • Detector cost ~$10M • Design, R&D, & Prototype Are Completed

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