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A. Dabrowski, October 27 2005 Ratio(ke3/pipi0); Ratio(kmu3/pipi0) 1 Comments Γ(Ke3) / Γ(pipi0) Γ(Kmu3) / Γ(pipi0) Γ(Kmu3) / Γ(ke3) Anne Dabrowski Northwestern.

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Presentation on theme: "A. Dabrowski, October 27 2005 Ratio(ke3/pipi0); Ratio(kmu3/pipi0) 1 Comments Γ(Ke3) / Γ(pipi0) Γ(Kmu3) / Γ(pipi0) Γ(Kmu3) / Γ(ke3) Anne Dabrowski Northwestern."— Presentation transcript:

1 A. Dabrowski, October 27 2005 Ratio(ke3/pipi0); Ratio(kmu3/pipi0) 1 Comments Γ(Ke3) / Γ(pipi0) Γ(Kmu3) / Γ(pipi0) Γ(Kmu3) / Γ(ke3) Anne Dabrowski Northwestern University NA48/2 Collaboration Meeting 30 November 2005

2 A. Dabrowski, November 30 2005 Ratio(ke3/pipi0); Ratio(kmu3/pipi0) 2 Introduction Comment about numbers in the first draft of the paper –Form factor used was KTeV Pole for Ke3 and Kmu3 (In the October 2005 talk, the linear form factor was the nominal form factor used) Numerical Checks – can we trust PAW with weighted events? –A study comparing the Σweights PAW v.s. FORTRAN (important because systematic error due to form factor based on weighted events) Update –KLOE vs. Ginsberg + PHOTOS MC revisited Form factor normalisation Acceptance comparison ke3 Conclusion Outline

3 A. Dabrowski, November 30 2005 Ratio(ke3/pipi0); Ratio(kmu3/pipi0) 3 Measurement of Ratios A. Dabrowski, October 27 2005 Ratio(ke3/pipi0); Ratio(kmu3/pipi0)

4 A. Dabrowski, October 27 2005 Ratio(ke3/pipi0); Ratio(kmu3/pipi0) 4 Update Comparison radiative corrections Ginsberg + PHOTOS compared to KLOE

5 A. Dabrowski, November 30 2005 Ratio(ke3/pipi0); Ratio(kmu3/pipi0) 5 Report on KLOE vs Ginsberg+PHOTOs MC ke3  from Cambridge meeting, showed ridges in KLOE/Ginsberg MC  After checks with C. Gatti (From KLOE), numerical solution solved. Still a slope in the Dalitz plane. This slope will be investigated. Cambridge Now Recall: October 2005 Meeting

6 A. Dabrowski, November 30 2005 Ratio(ke3/pipi0); Ratio(kmu3/pipi0) 6 Report on KLOE vs Ginsberg+PHOTOs MC ke3  from Cambridge meeting, showed ridges in KLOE/Ginsberg MC  After checks with C. Gatti (From KLOE), numerical solution solved. Still a slope in the Dalitz plane. This slope will be investigated. Cambridge Now

7 A. Dabrowski, November 30 2005 Ratio(ke3/pipi0); Ratio(kmu3/pipi0) 7 Report on KLOE vs Ginsberg+PHOTOs MC ke3

8 A. Dabrowski, November 30 2005 Ratio(ke3/pipi0); Ratio(kmu3/pipi0) 8

9 A. Dabrowski, November 30 2005 Ratio(ke3/pipi0); Ratio(kmu3/pipi0) 9

10 A. Dabrowski, November 30 2005 Ratio(ke3/pipi0); Ratio(kmu3/pipi0) 10

11 A. Dabrowski, November 30 2005 Ratio(ke3/pipi0); Ratio(kmu3/pipi0) 11 Acceptance Ginsberg+PHOTOSAcceptance KLOE Ke3+ Ke3-

12 A. Dabrowski, November 30 2005 Ratio(ke3/pipi0); Ratio(kmu3/pipi0) 12 Conclusion Results of the draft version of the paper were shown today. I propose to release the neutrino mass cut in ke3 for final version on the paper, and to leave the neutrino mass cut in for kmu3. Numerical MC issue with KLOE vs. Ginsberg has been resolved. –MC being used at the moment Ke3 Ginsberg + PHOTOS (KLOE also available) Kmu3 Ginsberg + PHOTOS (KLOE MC does not have the lambda0 term of the matrix element yet) Pipi0 KLOE

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