Evidence for the decay D-0 -> K+pi(-)pi(+)pi(-)

Evidence for the decay D-0 -> K+pi(-)pi(+)pi(-)

We present a search for the "wrong-sign" decay D0→K+π-π+π - using 9 fb-1 of e+e- collisions on and just below the Y(4S) resonance. This decay can occur either through a doubly Cabibbo-suppressed process or through mixing to a D̄0 followed by a Cabibbo-favored process. Our result for the ti...

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المؤلفون الرئيسيون: Dytman, SA, Savinov, V, Chen, S, Hinson, J, Lee, J, Miller, D, Shibata, E, Shipsey, I, Pavlunin, V, Cronin-Hennessy, D, Lyon, A, Park, W, Thorndike, E, Coan, T, Gao, Y, Liu, F, Maravin, Y, Narsky, I, Stroynowski, R, Ye, J, Artuso, M, Boulahouache, C, Bukin, K, Dambasuren, E, Majumder, G
التنسيق: Journal article
اللغة:English
منشور في: 2001
الوصف
الملخص:We present a search for the "wrong-sign" decay D0→K+π-π+π - using 9 fb-1 of e+e- collisions on and just below the Y(4S) resonance. This decay can occur either through a doubly Cabibbo-suppressed process or through mixing to a D̄0 followed by a Cabibbo-favored process. Our result for the time-integrated wrong-sign rate relative to the decay D0→K-π+π-π + is (0.0041-0.0011+0.0012(stat)±0.0004(syst)) ×(1.07±0.10)(phase space), which has a statistical significance of 3.9 standard deviations.

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