First Measurement of phi3 with a Model-independent Dalitz Plot Analysis of B->DK, D->KsPiPi Decay
Abstract
We present the first measurement of the angle phi3 of the Unitarity Triangle using a model-independent Dalitz plot analysis of B->DK, D->KsPiPi decays. The method uses an input measurements of the strong phase of the D->KsPiPi amplitude from the CLEO collaboration. The result is based on the full data set of 772x106 BBbar pairs collected by the Belle experiment at the Upsilon(4S) resonance. We obtain phi3 = (77.3+15.1-14.9 +- 4.1 +- 4.3) and the suppressed amplitude ratio rB = 0.145 +- 0.030 +- 0.010 +- 0.011. Here the first error is statistical, the second is the experimental systematic uncertainty, and the third is the error due to the precision of the strong-phase parameters obtained by CLEO.
Turn this paper into a lesson
ArcXiv compiles a structured reading guide from this paper's metadata: plain-English importance, contributions, prerequisite concepts, which sections to read first, flashcards, and a quiz. Grounded in the abstract, never invented.