The study of the nature of particles that constitute matter and radiation is known as particle physics. This discipline examines the smallest detectable particles and also studies the basic interactions which are necessary to explain particle's behavior. Some of the subatomic particles studied in this field are electrons, protons and neutrons. The dynamics of these particles are studied using quantum mechanics since they exhibit wave-particle duality. Particle physics investigates the standard model and its extensions. Standard model is a theory that describes fundamental particles and fields with their dynamics. Principles and concepts from particle physics are applied in a wide range of fields such as medicine, computing, national security, etc. This book explores all the important aspects of particle physics in the present day scenario. It explains the complex concepts and applications of particle physics in an easy manner. Students, researchers, experts and all associated with this discipline will get benefit alike from this book.