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(B)over-bar(u)(,d,s)* -> D-u(,d,s)*V (V=3DD-d,D-s*(-),K*(-),rho(-)) weak decays

Author:
Chang, Qin  Zhang, Yunyun  Li, Xiaonan  


Journal:
CHINESE PHYSICS C


Issue Date:
2019


Abstract(summary):

Motivated by the rapid development of heavy flavor physics experiments, we study the tree-dominated nonleptonic (B) over bar (u)(,d,s)* -> D-u(,d,s)*V (V=3DD*(-), D-s*(-), K*(-), rho(-)) decays within the factorization approach. The relevant transition form factors are calculated by employing the covariant light-front quark model. Helicity amplitudes are calculated and analyzed in detail, and a very clear hierarchical structure vertical bar H-0 vertical bar approximate to 2 vertical bar H-00 vertical bar > vertical bar H0-vertical bar approximate to vertical bar H vertical bar > vertical bar H0+vertical bar approximate to vertical bar H++vertical bar is presented. The branching fractions are computed and discussed. Numerically, the CKM-favored (B) over bar (q)* -> D-q*rho(-) and D-q*D-s*(-) decays have relatively large branching fractions, greater than or similar to O(10(-8)), and could be observed by LHC and Belle-II experiments in the future.


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