1 / 21

Relation of Reactor q 13 to Long-baseline Superbeam Experiments

Relation of Reactor q 13 to Long-baseline Superbeam Experiments. R. D. McKeown Caltech. Outline. Overview Reactor n disappearance Superbeam experiments New comparison plots Conclusions and Observations. Maki – Nakagawa – Sakata Matrix. Future Studies!. CP violation.

zelia
Download Presentation

Relation of Reactor q 13 to Long-baseline Superbeam Experiments

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Relation of Reactor q13 to Long-baseline Superbeam Experiments R. D. McKeown Caltech

  2. Outline • Overview • Reactor n disappearance • Superbeam experiments • New comparison plots • Conclusions and Observations

  3. Maki – Nakagawa – Sakata Matrix Future Studies! CP violation

  4. Goals for the future • Establish q13 non-zero • Measure CP violation • Determine mass hierarchy

  5. (2003)

  6. ne Disappearance Dominant 12Oscillation P(ee) Distance (m) Subdominant 13Oscillation

  7. Reactor Experiment Sensitivity(Huber et al.,)

  8. Three Classes of Proposals • sin22q13 ~ 0.03 (e.g., CHOOZ II) • sin22q13 ~ 0.01 (US approach?) • sin22q13 << 0.01 (??)

  9. Reactor Experiment Sensitivity 1 2 3

  10. Mass hierarchy (+/-) ne Appearance T2K- From Tokai To Kamioka CP violation matter

  11. “Minakata” Plots Dm2=3x10-3 eV2

  12. Huber et al., comparison

  13. Superbeam “Proposals” • T2K (JPARC-SK, 2009 start) E=0.7 GeV, L=295km, L/E=421 • NUMI (FNAL-Soudan) E=1.5 GeV, L=732km, L/E=488 • BNL-NUSL E=2.0 GeV, L=2540km, L/E= 1270 (Dm2=2x10-3 eV2g L/E=394) Run scenario: 5yr n – then n

  14. T2K • normal • inverted dcp 5 years +/- 0.03 Dm2=2x10-3 eV2

  15. +/- 0.01 reactor Dm2=2x10-3 eV2

  16. NUMI (FNAL-Soudan) 5 years +/- 0.05 Dm2=2x10-3 eV2

  17. NUMI (FNAL-Soudan) +/- 0.01 reactor Dm2=2x10-3 eV2

  18. Dm2=3x10-3 eV2

  19. Dm2=2x10-3 eV2

  20. BNL-NUSL

  21. CONCLUSIONS • Reactor measurement with sin22q13 ~ 0.01 • can provide significant new constraints • when combined with 5yr superbeam • result – perhaps even decide hierarchy • L/E for superbeam expt seems critical • Coordination appears beneficial

More Related