Towards Determining \phi_1 with B\to D^(*)\bar{D}^(*)
Abstract
We present an isospin analysis of the decay modes B\to D\bar{D}, D^*\bar{D}, D\bar{D}^* and D^*\bar{D}^*, which allows determination of the final-state interaction phases. As these transitions have branching ratios of the order 10^{-4} or larger, they could be useful in detecting the CP- violating phase \phi_1 \equiv \arg (-V^*_{cb} V_{cd} V_{tb} V^*_{td} ) in the first-round experiments of a B-meson factory. The problem of penguin pollution may still be present. Once the Kobayashi-Maskawa matrix elements are known, it is possible to obtain the magnitudes and relative phases of hadronic matrix elements for B\to D^{(*)}\bar{D}^{(*)}. This will in turn lead to some information about the penguin pollution.
Cite
@article{arxiv.hep-ph/9702297,
title = {Towards Determining \phi_1 with B\to D^(*)\bar{D}^(*)},
author = {A. I. Sanda and Zhi-zhong Xing},
journal= {arXiv preprint arXiv:hep-ph/9702297},
year = {2016}
}
Comments
Latex 14 pages. This was indeed the submission version, which is slightly different from the original hep-ph version. Accepted for publication in Phys. Rev. D