[Triumf-seminars] TRIUMF Seminar today at 14:00

[postmaster at admin.triumf.ca]

Date/Time: Tue 2008-08-19 at 14:00

Location:  Auditorium          

Speaker:   Joss Ives (UBC/TRIUMF)

Title:     Final BNL E949 results on the search for the rare decay K+ -> pi+ nu nubar

Abstract: The decay K+ -> pi+, nu, nubar is a flavor-changing neutral current process which is very sensitive to new physics contributions. In the  standard model it proceeds via a second-order weak transition which is calculated with high precision resulting in a branching ratio prediction of (0.85 +/- 0.07) E(-10). BNL experiment E787/E949 has previously observed three events in the momentum region above the 2-body K+ -> pi+, pi0 peak. Final analysis of the E949 data for the momentum region below the K+ -> pi+, pi0 peak has now been  completed. Results of this analsysis and of the combined E787/E949 data will be presented along with a discussion of the blind analysis technique that was used.

Stimulants available 15 minutes before the talk.

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