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 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)

Current State of Neutrino Oscillation Evidence

3 Dm2 Problem!

Physics Beyond theStandard Model!?!

3+2 ModelSorel, Conrad, & Shaevitz

hep-ph/0305255

3+2 ModelSorel, Conrad, & Shaevitz hep-ph/0305255

CPT Violation ModelBarenboim, Borissov, & Lykken

hep-ph/0212116

MiniBooNE is Working Well!

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

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)

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