particle physics.pdf

In this video , i explained elementary particles , Quarks , Leptons . hadrons

1. CLASSIFICATION OF ELEMENTARY
PARTICLES
Presented by –Anjali Dahikar

2. Structure of an Atom

3. ElementaryParticles
➢Infinitely hard and structureless
➢Unbreakable
➢It is also known as fundamental Particle
➢The elementary particle have been classified on the
basis of four properties –Mass, Lifetime, Interaction,
Spin.

4. Quark
1.Up Quark
2.Down Quark
3.Strange Quark
4.Charm Quark
5.Top Quark
6.Bottom Quark
3 Electrons ( electron, Muon, tau )
3 Neutrinos (electron, muon, tau)

5. Classification of Elementary Particle
On the basis of mass -
1.Massless bosons :
✓Zero charge
✓Zero rest mass
✓Zero or integral spin
✓Stable
✓Travel with speed of
light.

6. Hadrons–Hadrons are those particle
which do participate in Strong
interaction.
Hadrons
Meason Baryons
Hyperons
Nucleons
On the basis of interaction :
✓Leptons –Leptons are those
particle which do participate
in weak interaction
✓Masses are smaller than ∏ -
Mesons
✓Types –Electron , Muon,Tau
,Electron neutrino, Muon
neutrino,Taunutrino,.

7. ➢Mesons means middle mass particle.
➢All the mesons have integral spin.
➢They are also called bosons.
➢Masses are between those of leptons &
baryons.
➢Types –Pion, Kaon and eta particles.
Mesons :
Baryons:
➢Baryon means heavy Weight.
➢The rest mass equal to greater than
the mass of protons.
➢They are also called as fermions.
➢All the baryons have half integral
spin.
➢Types –Lembda, Sigma, Xi, omega.

8. On the basis of spin:
Spin
Fermions Bosons
✓Fermi particle
✓Particle having half odd
spin ½,3/2,-------
✓Ex –Electron, neutron,
proton, Quark
✓Obey F.D statistics
✓Antisymmetric
Wavefunction
✓Bosons particle
✓Particles having integral Spin
S=0,1,2,3,--------
✓Ex –Photon, Meson
✓Obey B.E. statistics
✓Symmetric Wavefunction

9. THANK YOU ‼