Searches for New Physics (NP) beyond the Standard Model (SM) have been going on at various Particle Physics experiments in recent years. Tree-level decays of beauty mesons represent promising avenues in this quest. This is discussed in two parts as follows:
Part 2: CP Violation in Beauty Decays and Inputs from Charm Abstract: CP violation in beauty hadron decays provides standard candle tests of the SM. The Cabibbo-Kobayashi-Maskawa unitarity angle 𝛾/𝜙3 is a well-suited observable for these tests. Inputs from charm decays are crucial for these measurements. This talk focuses on the 𝛾/𝜙3 measurements at the LHCb and Belle experiments, along with the determination of charm decay parameters at the CLEO-c experiment. High-quality vertex detectors are imperative for such precision measurements. A glimpse of the construction and quality assurance of the vertex detector system at Belle II will also be discussed. Future research plans at Belle II involving beauty and charm decays along with potential contributions to hardware development are proposed.