https://doi.org/10.1140/epjc/s10052-023-12317-w
Regular Article - Theoretical Physics
The nonleptonic decays of b-flavored mesons to S-wave charmonium and charm meson states
1
Department of Physics, Siksha ’O’ Anusandhan Deemed to be University, 751030, Bhubaneswar, India
2
National Institute of Science Education and Research (NISER), 752050, Bhubaneswar, India
3
Department of Physics, Maharaja Sriram Chandra Bhanja Deo University, 757003, Baripada, India
4
Department of Physics, Utkal University, 751004, Bhubaneswar, India
Received:
31
March
2023
Accepted:
4
December
2023
Published online:
20
December
2023
The detection of radially excited charmonium and charm meson states, and measurement of heavy meson decays, particularly 
and 
, by the LHCb and ATLAS Collaborations, have aroused a lot of theoretical interest in the nonleptonic decays of b-flavored mesons. In this paper, we study the exclusive two-body nonleptonic 
, 
, 
and 
-meson decays to two vector meson (
) states. Assuming the factorization hypothesis, we calculate the weak-decay form factors from the overlapping integrals of meson wave functions, in the framework of the relativistic independent quark (RIQ) model. We find a few dominant decay modes: 
, 
, 
, 
and 
with predicted branching fractions of 1.52, 1.40, 1.16, 0.46 and 0.27 (in 
), which are experimentally accessible. The predicted branching fractions for corresponding decay modes to excited (2S) states, obtained in 
lie within the detection accuracy of the current experiments at LHCb and Tevatron. Our predicted CP-odd fractions (
) for color-favored 
-decays to two charmful states (
) are found significant as compared to similar decay modes of other b-flavored mesons.
© The Author(s) 2023
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