(2) the leptons or light particles. In contradiction to this very basic principle of contemporary physics, this article proposes a new concept that particles in the gravitation field All electrons have the exact same characteristics (mass, charge, etc. Thus, they ceased to be elementary in a literal sense. With the development of science, particles that were formerly considered indivisible turned out to be assembled from two or more other, smaller particles. Move your mouse over a particle to show its name, classification, properties and further information. Why 31? Hadrons are subject to the strong nuclear force, they are not fundamental particles as they are made up of quarks. In contemporary physics elementary particles are classified by energy, live time and other properties. The search for the origin of matter means the understanding of elementary particles. Every inch of this visualization is active. Hadrons are the heaviest particles. 7 Units 8 References and Notes Bosons and Fermions: - BOSONS Introduction: In particle physics boson is the type of particle that obeys the rule of Bose- Einstein statistics. The particle page explores the history of the discovery of tiny particles from the atom to the quark. Leptons are the lightest particles. Baryons are the heaviest particles of all, followed by mesons. Classification of Elementary Particles Elementary particles are categorized on the basis of their nature and properties. It’s analogous to the arrangement of atoms based on different characteristics in the periodic table. Nobody knows. Classification of the Elementary Particles. Move your mouse over a category to show which particles belong to that category. The Standard Model (formulated in 1970) organized elementary particles into different well-defined groups, based on particle interactions and other measurable properties. 4 How Do You Detect Elementary Particles? ), so we call an electron fundamental because they are all non-unique. It is a massless boson. CLASSIFICATION OF ELEMENTARY PARTICLES #Classification On the basis of “SPIN”: - •Elementary Particles are categorised in two classes i.e. Classification of Elementary Particles Elementary particles can be classified on the basis of different properties of particles. Historically, elementary particles were such objects that have no known internal structure that is, colloquially speaking they are indivisible. This group is then spilt up into baryons and mesons. Protons are made of two up quarks and one down quark, while neutrons contain two down quarks and one up quark. Fundamental particles called quarks come in six different flavors. These are, referring to their masses: (1) the photon with zero rest mass and spin 1. Elementary particles are classified into groups according to their mass and spin properties. Hadrons. Why these 31, rather than some other 31? They are classified on the basis of mass, charge, average lifetime, spin, interaction etc. Many of the particles we have discussed so far appear simple in their properties. Quantum mechanics changed our perception of elementary particles from strictly point objects to dual function objects encompassing both wave-like and point-like properties. Where do these 31 elementary particles come from? CONTENTS Preface vii Introduction 1 Elementary Particle Physics 1 How Do You Produce Elementary Particles? On the basis of mass, elementary particles are divided into four types: Massless particles Light particles Intermediate particles