What are the 3 lepton families?

What are the 3 lepton families?

Lepton type conservation Leptons are divided into three lepton families: the electron and its neutrino, the muon and its neutrino, and the tau and its neutrino. We use the terms “electron number,” “muon number,” and “tau number” to refer to the lepton family of a particle.

What are some examples of lepton?

Types of Leptons: These include the Electron, the Muon, and Tau particles, as well as their associated neutrinos (i.e. electron neutrino, muon neutrino, and tau neutrino). Leptons have negative charge and a distinct mass, whereas their neutrinos have a neutral charge.

How many leptons are in the lepton family?

II. There are six known leptons, and they occur in pairs, called generations, which we write as doublets: ( ν e e − ) , ( ν μ μ − ) , ( ν τ τ − ) . Each generation comprises a charged lepton with electric charge Q = −e, and a neutral lepton or neutrino.

What is lepton family number?

lepton number n. (Atomic Physics) physics a quantum number describing the behaviour of elementary particles, equal to the number of leptons present minus the number of antileptons. It is thought to be conserved in all processes. Symbol: l.

What is lepton chemistry?

Lepton, any member of a class of subatomic particles that respond only to the electromagnetic force, weak force, and gravitational force and are not affected by the strong force. Electrons, the lightest leptons, have a mass only 1/1,840 that of a proton.

Which elementary particle is lepton?

Leptons are said to be elementary particles; that is, they do not appear to be made up of smaller units of matter. Leptons can either carry one unit of electric charge or be neutral. The charged leptons are the electrons, muons, and taus. Each of these types has a negative charge and a distinct mass.

How are the three families of leptons divided?

Leptons are divided into three lepton families: the electron and its neutrino, the muon and its neutrino, and the tau and its neutrino. We use the terms “electron number,” “muon number,” and “tau number” to refer to the lepton family of a particle.

What are the names of the three lepton particles?

The three charged leptons ( e−, μ −, τ −) are the familiar electron, together with two more massive particles, the mu-lepton or muon, and the tau-lepton or tauon. The associated neutrinos (ν e, ν μ, ν τ) have very small masses and are called the electron neutrino, mu-neutrino, and tau-neutrino respectively.

Which is the best description of a lepton?

The best known electrically charged leptons are: The three electrically neutral leptons are the neutrinos (ν). Associated to each charged lepton, there are three distinct kinds of neutrinos: For each of these leptons there is also an associated anti-particle, which has the same mass but opposite charge.

Why are electrons and neutrinos classified as leptons?

As such, electrons and neutrinos are leptons. A lepton number of 1 is assigned to both the electron and the neutrino and −1 to the antineutrino and the positron. Conservation of the lepton number is useful in studying interactions, and decay processes, in which β particles (positive or negative) are produced.