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

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

Included in

Physics Commons

Share

COinS