pion138.

pion138In particle physics, a pion ( ˈ p aɪ. ɒ n , PIE-on) or pi meson, denoted with the Greek letter pi (π), is any of three subatomic particles: π 0, π +, and π −Each pion consists of a quark and anpion138love.click is your first and best source for all of the information you're looking for. From general topics to more of what you would expect to find