Department
Physics
Document Type
Article
Publication Date
4-2016
Embargo Period
7-5-2018
Abstract
We report a measurement of the amplitude ratio rS of B0 → D0K∗0 and B0 → D¯0K∗0 decays with a Dalitz analysis of D → K0 Sπ+π− decays, for the first time using a model-independent method. We set an upper limit rS < 0.87 at the 68% confidence level, using the full data sample of 711 fb−1 corresponding to 772 × 106 BB¯ pairs collected at the ϒ(4S) resonance with the Belle detector at the KEKB e+e− collider. This result is obtained from observables x− = +0.4+1.0+0.0 −0.6−0.1 ± 0.0, y− = −0.6+0.8+0.1 −1.0−0.0 ± 0.1, x+ = +0.1+0.7+0.0 −0.4−0.1 ± 0.1, and y+ = +0.3+0.5+0.0 −0.8−0.1 ± 0.1, where x± = rS cos(δS ± φ3), y± = rS sin(δS ± φ3), and φ3 (δS) is the weak (strong) phase difference between B0 → D0K∗0 and B0 → D¯0K∗0.
Journal Title
Progress of Theoretical and Experimental Physics
Journal ISSN
2050-3911
Volume
2016
Issue
4
Digital Object Identifier (DOI)
10.1093/ptep/ptw030
Comments
© The Author(s) 2016. Published by Oxford University Press on behalf of the Physical Society of Japan. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.Funded by SCOAP3