Lepton table
However, the mechanism responsible for neutrino masses is unknown, so it is interesting to parametrise LFV with contact interactions, and to look for it everywhere. This motivates sensitive searches for processes such as μ → e γ and μ - e conversion. Leptons interact through electromagnetic and weak force, while quarks interact through strong interactions.Lepton Flavour Violation (LFV), meaning local interactions that change the flavour of charged leptons, should occur because neutrinos have mass and mix.Hadrons are more massive particles compared to leptons.The quarks combine through strong nuclear interaction to form hadrons until now, no internal structures of leptons are discovered, but Hadrons have internal structure.Quarks and leptons are two categories of the elementary particles and taken together, known as fermions.What is the difference between Hadrons and Leptons? Baryons consists of three quarks (qqq) bound with strong force, and antibaryons are three anti-quarks ( \bar ) paired together. Three main categories of hadrons are baryons, antibaryons, and mesons. These particles interact through strong force to form larger particles known as hadrons and hadrons have integer number charge.īasically, quarks combine with quarks itself or with anti-quarks, to form stable hadrons. particle masses shown in the bottom are in GeV/c 2. They have the same mass but opposite charge. Quarks also have anti-particles known as anti-quarks. They are up, down, strange, top, and bottom quarks. The other major category of the elementary particles is known as quarks. The anti-particle of the electron is known as positrons. Anti-leptons have similar mass and opposite charge. Leptons interact with each other by the electromagnetic interaction and weak nuclear interaction.įor each lepton particle, there are anti-particles known as antileptons. These particles can be produced in particle accelerators. To generate muons and tau particles, a high level of energy is needed and in present day can only be seen in instances where there is a high energy density. The electron is the lightest particle that is why the universe is abundant with electrons, but the other particles are rare.
![lepton table lepton table](https://image.slidesharecdn.com/elementaryparticles-101223105005-phpapp02/95/elementary-particles-5-728.jpg)
Massive particles have a shorter half-life than the less massive ones. The stability of these heavier particles is directly related to their masses. Each particle and where to find them are summarized in the following table.Ī) Large numbers produced in the upper atmosphere by cosmic radiation
![lepton table lepton table](https://i.pinimg.com/originals/48/11/a5/4811a5517004094febc8f3e4b070df53.png)
Their corresponding neutrinos are neutral and relatively massless. The muon is three times more massive than the electron, and tau is 3500 times more massive than the electron. Electron, muon, and tau have a charge of -1, and they differ from each other only from the mass. Particles known as electrons, muons ( µ), tau ( Ƭ) and their corresponding neutrinos are known as the family of leptons. Quarks are bound together to form a larger particle structure known as Hadrons.
![lepton table lepton table](https://s3.i-micronews.com/uploads/2016/02/FLIR_O2-1440x708-c-default.jpg)
These particles are known as Elementary particles, and Leptons and Quarks are known to be two main categories of elementary particles. These are known as subatomic particles and namely, the proton, neutron, and electron.įurther investigation reveals that these particles (subatomic particles) also have internal structure, and are made of smaller things. But the 20th century physicist discovered that the atom can be broken into smaller pieces, and all the atoms are made of different compositions of these particles. Atoms are thought to be indivisible until the 20th century. It has been our understanding for over three hundred years that matter consists of atoms.