Using 385  fb-1 of e+e- collisions, we study the amplitudes of the singly Cabibbo-suppressed decay D0→K-K+π0. We measure the strong phase difference between the D̅ 0 and D0 decays to K*(892)+K- to be -35.5°±1.9°(stat)±2.2°(syst), and their amplitude ratio to be 0.599±0.013(stat)±0.011(syst). We observe contributions from the Kπ and K-K+ scalar and vector amplitudes, and analyze their angular moments. We find no evidence for charged κ, nor for higher spin states. We also perform a partial-wave analysis of the K-K+ system in a limited mass range.

Amplitude analysis of the decay D0→K-K+π0

SIMI, GABRIELE;GAZ A;MARGONI, MARTINO;SIMONETTO, FRANCO;STROILI, ROBERTO;VOCI, CESARE;
2007

Abstract

Using 385  fb-1 of e+e- collisions, we study the amplitudes of the singly Cabibbo-suppressed decay D0→K-K+π0. We measure the strong phase difference between the D̅ 0 and D0 decays to K*(892)+K- to be -35.5°±1.9°(stat)±2.2°(syst), and their amplitude ratio to be 0.599±0.013(stat)±0.011(syst). We observe contributions from the Kπ and K-K+ scalar and vector amplitudes, and analyze their angular moments. We find no evidence for charged κ, nor for higher spin states. We also perform a partial-wave analysis of the K-K+ system in a limited mass range.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11577/2445971
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