Theoretical and Experimental High Energy Physics

High Energy Physics is the division of physics that studies the nature of the particles that constitute matter & radiation. However the word "particle" can refer to several types of very small substances such as protons, gas particles, or even household dust, "particle physics" usually explores the irreducibly smallest visible particles and fundamental interactions necessary to explain their behavior. By the present understanding, these elementary particles are the excitations of quantum fields that also administrate their interactions.