D_s+ is a type of meson, which is a subatomic particle made up of a quark and an antiquark. Specifically, the D_s+ meson consists of a charm quark and a strange antiquark. It is part of the broader family of D mesons, which are important in the study of particle physics and the interactions of fundamental forces. The D_s+ meson has a positive electric charge and a mass that is heavier than that of a proton. It plays a significant role in the study of charm quarks and helps physicists understand the behavior of matter under the influence of the strong force. Its decay processes are also of interest in exploring CP violation, which has implications for the matter-antimatter asymmetry in the universe.