ψ(3770) and B meson exclusive decay B → ψ(3770)K in QCD factorizationYing-Jia Gao, Ce Meng and Kuang-Ta ChaoEur. Phys. J. A, 28 3 (2006) 361-367DOI: https://doi.org/10.1140/epja/i2006-10059-y