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Elementary Particles

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 Sub Topics The topic or field of elementary particle arises after the invention of the electron. After that, new particle was discovered from cosmic rays. These particles are high energy particles. This field become popular after the invention of particles from cosmic rays. The discovery of quarks enhanced the growth of this field. More details about this topic is explained in the following section.

Definition

Elementary particles are defined as the fundamental particles or building block of every matter. Before it was considered as atoms are the basic building block of any matter. But now it is realized that atoms are also divided into further more elementary particles. Elementary particles leads to a new branch of physics which is known as Quantum mechanics. In quantum mechanics, the study of quantum particles and their interactions, properties etc.

Standard Model

The standard model is nothing but the theory of fundamental particles and their interactions. In 1970s, these theories are termed as a standard model. Basically it tells about sixteen elementary particles. These sixteen particles are 6 quarks, 6 leptons and 4 force carriers. The given figure depicts the standard model of elementary particles.

Six quarks include up, down, strange, charm, top and bottom.
Six leptons are electron, electron neutrino, muon, muon neutrino, tau and tau neutrino. And force carriers are photon, gluon, z boson and w boson.

List of Elementary Particles

 Quarks Symbol Antiquarks up u $\bar{u}$ down d $\bar{d}$ strange s $\bar{s}$ charm c $\bar{c}$ top t $\bar{t}$ bottom b $\bar{b}$
 Leptons Symbol Anti leptons electron e- e+ electron neutrino $\nu _{e}$ $\bar{\nu _{e}}$ muon $\mu$ - $\mu$ + muon neutrino $\nu _{\mu}$ $\bar{\nu _{\mu}}$ tau $\tau$ - $\tau$ + tau neutrino $\nu _{\tau}$ $\bar{\nu _{\tau}}$