We present an analysis of the decay D0→K+π- based on FOCUS data. From a sample of 234 signal events, we find a branching ratio of Γ(D0→K+π-)Γ(D0→K-π+)=(0.429-0.061+0.063±0. 027)% under the assumptions of no mixing and no CP violation. Allowing for CP violation, we find a branching ratio of (0.429±0.063±0.028)% and a CP asymmetry of 0.18±0.14±0.04. The branching ratio for the case of mixing with no CP violation is (0.381-0.163+0.167±0.092)%. We also present limits on charm mixing.

Link, J., Yager, P., Anjos, J., Bediaga, I., Gobel, C., Machado, A., et al. (2005). Measurement of the doubly Cabibbo suppressed decay D-0 K+pi(-) and a search for charm mixing. PHYSICS LETTERS. SECTION B, 618(1-4), 23-33 [10.1016/j.physletb.2005.05.020].

Measurement of the doubly Cabibbo suppressed decay D-0 K+pi(-) and a search for charm mixing

Gianini G.;
2005

Abstract

We present an analysis of the decay D0→K+π- based on FOCUS data. From a sample of 234 signal events, we find a branching ratio of Γ(D0→K+π-)Γ(D0→K-π+)=(0.429-0.061+0.063±0. 027)% under the assumptions of no mixing and no CP violation. Allowing for CP violation, we find a branching ratio of (0.429±0.063±0.028)% and a CP asymmetry of 0.18±0.14±0.04. The branching ratio for the case of mixing with no CP violation is (0.381-0.163+0.167±0.092)%. We also present limits on charm mixing.
Articolo in rivista - Articolo scientifico
article; mathematical analysis; measurement
English
2005
618
1-4
23
33
none
Link, J., Yager, P., Anjos, J., Bediaga, I., Gobel, C., Machado, A., et al. (2005). Measurement of the doubly Cabibbo suppressed decay D-0 K+pi(-) and a search for charm mixing. PHYSICS LETTERS. SECTION B, 618(1-4), 23-33 [10.1016/j.physletb.2005.05.020].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/455481
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