Are there significant scalar resonances in B--> D(*)(K-K0)-K-0 decays?

作者：Hsieh RC^*; Chen CH

来源：Physical Review D - Particles, Fields, Gravitation and Cosmology, 2004, 69(5): 057504.

DOI：10.1103/PhysRevD.69.057504

We study the indication of different large branching ratios between B--->(DK-K0)-K-(*)0 and (B) over bar (d)-->(D(*)+K-K0) observed by Belle. Interestingly, the same situation is not found in the decays B-->(DK-K*0)-K-(*). If no intermediate resonances exists in the decays B--->(DK-K0)-K-(*)0, a puzzle will arise. We find that the color-suppressed processes B--->D((*)0)a(0)(-)(1450) with a(0)(-)(1450)-->(K-K0) could be one of the candidates to enhance the BRs of B--->(DK-K0)-K-(*)0. Our conjecture can be examined by the Dalitz plot technique and the analysis of the angular dependence of the (K-K0) state at B factories.

• 出版日期2004-3-1