Résumé
We report a measurement of the CP-violating parameters in B0→KS0KS0 decays based on a data sample of 657×106 BB̄ pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. In this Letter, one neutral B meson is fully reconstructed in the B0→KS0KS0 decay mode, and the flavor of the accompanying B meson is identified by its decay products. The CP-violating parameters are measured from the asymmetry in the distributions of the proper-time interval between the two B decays: SKS0KS0=-0.38-0.77+0.69(stat)±0.09(syst) and AKS0KS0=-0.38±0.38(stat)±0.05(syst).
| langue originale | Anglais |
|---|---|
| Numéro d'article | 121601 |
| journal | Physical Review Letters |
| Volume | 100 |
| Numéro de publication | 12 |
| Les DOIs | |
| état | Publié - 27 mars 2008 |
| Modification externe | Oui |
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