First model-independent determination of the relative strong phase between D0 and D0bar --> K0_S pi+pi- and its impact on the CKM Angle gamma/phi_3 measurement

al.) The CLEO Collaboration (R. A. Briere et, P Naik, JH Rademacker

Research output: Contribution to journalArticle (Academic Journal)peer-review

Abstract

We exploit the quantum coherence between pair-produced D0 and D̅ 0 in ψ(3770) decays to make a first determination of the relative strong phase differences between D0→KS0π+π- and D̅ 0→KS0π+π-, which are of great importance in determining the Cabibbo-Kobayashi-Maskawa angle γ/ϕ3 in B-→D0(D̅ 0)K- decays. Using 818  pb-1 of e+e- collision data collected with the CLEO-c detector at Ecm=3.77  GeV, we employ a binned Dalitz-plot analysis of KS0π+π- and KL0π+π- decays recoiling against flavor-tagged, CP-tagged, and KS0π+π--tagged events to determine these strong phase differences.
Translated title of the contributionFirst model-independent determination of the relative strong phase between D0 and D0bar --> K0_S pi+pi- and its impact on the CKM Angle gamma/phi_3 measurement
Original languageEnglish
Pages (from-to)032002 - 032017
Number of pages16
JournalPhysical Review D: Particles, Fields, Gravitation and Cosmology
Volume80
Publication statusPublished - Aug 2009

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