The d meson, a combination of a charm quark and up anti-quark (cu), can decay to

The d meson, a combination of a charm quark and up anti-quark (cu), can decay to k-mesons and pi-mesons in several different channels. three possibilities are where a k+ meson is composed of us, a k-meson is composed of us, a π+ posed of ud, and a π (a) draw the leading order feynman diagrams for each of the above decays. [10 points] (b) based on the quark flavors present in the initial state and the final state, rank these decay channels from highest branching fraction to lowest branching fraction. explain your answer. [5 points] (c) in a general two-body decay, particle a, at rest, decays into particles b and c (a→b+c). find the energy and the magnitude of the momentum of particles b and c. express your answer in terms of the particle masses (ma, mg, and mc and the speed of light (c) [25 points]