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# reyna2baseline - PowerPoint PPT Presentation

Baseline Optimization Studies D. Reyna Argonne National Lab Some Basic Questions Does sensitivity to θ 13 survive under complete 3 flavor mixing? How can we best use all of the information in the energy spectrum? What are the optimal locations for 2 identical detectors?

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Presentation Transcript

### Baseline Optimization Studies

D. Reyna

Argonne National Lab

• Does sensitivity to θ13 survive under complete 3 flavor mixing?

• How can we best use all of the information in the energy spectrum?

• What are the optimal locations for 2 identical detectors?

• Bottom line: Can we achieve the desired sensitivity?

D. Reyna – Argonne National Lab

solar

atmospheric

D. Reyna – Argonne National Lab

Eν= 3.5 MeV

Full Reactor

Spectrum

D. Reyna – Argonne National Lab

Make 2

Comparison

Of

Distributions

100 m

1 km

• Each bin normalized to total at that location

• Errors are statistical only

D. Reyna – Argonne National Lab

• Minimizes Detector Specific Systematics

• Loss of overall rate information

2 Comparisons

Combined:

• Assumes Identical Detectors

• More Statistical Power

D. Reyna – Argonne National Lab

0.002

0.0025

0.003

0.0035

Optimizing 2 Locations

• 2 Identical Detectors

• Fix 1 Detector Baseline

• Sweep the Other

D. Reyna – Argonne National Lab

100m

1km

500m

1.5km

2km

D. Reyna – Argonne National Lab

Combined (stat only)

Combined (+ 1% sys)

Shape Only (stat only)

Shape Only (+ 1% sys)

D. Reyna – Argonne National Lab

Combined (stat only)

Combined (+ 1% sys)

Shape Only (stat only)

Shape Only (+ 1% sys)

D. Reyna – Argonne National Lab

D. Reyna – Argonne National Lab

D. Reyna – Argonne National Lab

• It is possible to get the desired sensitivity

• Optimal near detector location should be as close as possible

• A Detector should be at the first oscillation minimum (900 – 1400m)

• A farther location (~2.5km) yields almost as much statistical power

• Could be effective if a very near detector is not possible

• Possible 3rd detector?

D. Reyna – Argonne National Lab