Evidence for the Suppressed Decay B(-) -} DK(-), D -} K(+)pi-

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F11%3A10106086" target="_blank" >RIV/00216208:11320/11:10106086 - isvavai.cz</a>
Result on the web
<a href="http://prl.aps.org/pdf/PRL/v106/i23/e231803" target="_blank" >http://prl.aps.org/pdf/PRL/v106/i23/e231803</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevLett.106.231803" target="_blank" >10.1103/PhysRevLett.106.231803</a>

Result language
angličtina
Original language name
Evidence for the Suppressed Decay B(-) -} DK(-), D -} K(+)pi-
Original language description
The suppressed decay chain B(-) -} DK(-), D -} K(+)pi(-), where D indicates a (D) over bar (0) or D(0) state, provides important information on the CP-violating angle phi(3). We measure the ratio R(DK) of the decay rates to the favored mode B(-) -} DK(-), D -} K(+)pi(-) to be R(DK) = [1.63(-0.41)(+0.44)(stat)(-0.13)(+0.07)(syst)] x 10(-2), which indicates the first evidence of the signal with a significance of 4.1 sigma. We also measure the asymmetry A(DK) between the charge-conjugate decays to be A(DK)= -0.39(-0.28)(+0.26)(stat)(-0.03)(+0.04)(syst). The results are based on the full 772 x 10(6) B (B) over bar pair data sample collected at the Gamma(4S) resonance with the Belle detector.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BF - Elementary particle theory and high energy physics
OECD FORD branch
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Project
<a href="/en/project/LA10033" target="_blank" >LA10033: Participation in the Belle a Belle II experiments: study of B-meson decays</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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