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Blessed Plots 2005

Blessed Plots 2005. The current set of Blessed plots available from the MINOS website are taken from the 5 year plan exercise that occurred in mid-2003.

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Blessed Plots 2005

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  1. Blessed Plots 2005 • The current set of Blessed plots available from the MINOS website are taken from the 5 year plan exercise that occurred in mid-2003. • The calculations at that time used selection efficiencies derived from the pdf-based method that forms the basis of the current analysis, but used parameterised smearing functions rather than full event reconstruction. • The new plots that I am creating reflect the state of the analysis post-MDC: • Full event reconstruction with R1.16 (MDC was R1.12). Some re-tuning of cuts was required in going from R1.12 to R1.16. • Systematics: • The current plots (for 1 and 3e20 pot) have the following systematics applied: • 4% overall normalisation error • 2% energy scale error • 10% NC subtraction error • Studies to incorporate x-sec/beam systematics from the MDC-era analysis are underway • Latest Super-K/K2K regions shown for comparison • The next few slides preview the new generation of CC Blessed plots. • Initial results: • Beam energy choice plots (1e20), sensitivity for 3e20 • Sensitivity for 7.4, 16, 25e20 p.o.t, spectrum ratios • Supplementary plots, pdf and pid distributions

  2. Beam energy choice – 1e20 p.o.t.

  3. Spectra/ratios – 1e20 p.o.t.

  4. Sensitivity – 1 and 3e20 p.o.t.

  5. Sensitivity – 7.4e20 p.o.t. Stat errors only.

  6. Sensitivity – 25e20 p.o.t. Stat errors only.

  7. Spectrum ratios – 7.4e20 p.o.t. • Spectrum ratio - NC subtraction with 10% error.

  8. Spectrum ratios – 25e20 p.o.t.

  9. Statistical vs systematic errors Binning effect

  10. Sensitivity at higher Dm2 Stat errors only.

  11. Sensitivity as a function of Dm2 Stat errors only.

  12. Spectra/ratios – 7.4e20 p.o.t. Super-K lower limit on Dm2 Super-K ‘best-fit’ Dm2 Super-K upper limit on Dm2

  13. Measurement of sin22q • What is our ability to constrain sin22q away from 1.0? • Do fits at the outer extremity of the Super-K allowed region – at what C.L. can we exclude sin22q=1? Stat errors only. Shift caused by non-optimal binning in sin22q

  14. Supplementary plots: Far detector pdfs

  15. Far detector PID distribution & cut

  16. To do list… • Fix obvious ‘problems’ – binning etc. • Double, triple check all fits • many of these are very recent… • Check tuning of R1.16 event selection • Incorporation of MDC-esque systematics: • Cross-section parameters: ma_qel, ma_res, Disfact(?) • BMPT parameters: alpha_pi, a_pi, A_pi, A_K (or overall normalisation) • Energy scale uncertainties • Minor presentation issues • Tick marks on rhs of 2D plots • Any other plots • Discrimination between oscillations vs decay/decoherence

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