2024/03/31 by Thejus Mary S., S., Thejus Mary, Avijit Hazra +5 · 1 citation
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions
paper · pdf · doi:10.48550/arxiv.2404.00734
openalex publication_date 2024/03/31 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We present a comprehensive analysis of weak transition form factors, semileptonic decays, and nonleptonic decays of Bc meson involving pseudoscalar (P) and vector (V) meson for bottom-conserving and bottom-changing decay modes. We employ self-consistent covariant light-front quark model (CLFQM), termed as Type-II correspondence, to calculate the Bc to P(V) transition form factors. The Type-II correspondence in the CLF approach gives self-consistent results associated with the B(i)j functions, which vanish numerically after the replacement M′(′′) → M0′(′′) in traditional Type-I correspondence, and the covariance of the matrix elements is also restored. We investigate these effects on bottom-conserving Bc to P(V) form factors that have not yet been studied in CLFQM Type-II correspondence. In addition, we quantify the implications of self-consistency propagating to weak decays involving both bottom-conserving and bottom-changing Bc transition form factors. We use two different parameterizations, the usual three-parameter function of q2 and the model-independent z-series expansion, to establish a clear understanding of q2 dependence. Using the numerical values of the form factors, we predict the branching ratios and other physical observables, such as forward-backward asymmetries, polarization fractions, etc., of the semileptonic Bc decays. Subsequently, we predict the branching ratios of two-body nonleptonic weak decays using the factorization hypothesis in self-consistent CLFQM. We also compare our results with those of other theoretical studies.