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Particle Physics A Quick Tour

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Page 1: Particle Physics A Quick Tour. Models of the Atom Thomson – Plum Pudding Why? Known that negative charges can be removed from atom. Problem: just a random

Particle Physics

A Quick Tour

Page 2: Particle Physics A Quick Tour. Models of the Atom Thomson – Plum Pudding Why? Known that negative charges can be removed from atom. Problem: just a random

Models of the Atom Thomson – Plum Pudding

Why? Known that negative charges can be removed from atom.

Problem: just a random guess

Rutherford – Solar System Why? Scattering showed hard core. Problem: electrons should spiral into nucleus in

~10-11 sec.

––

––

–

+ –

Page 3: Particle Physics A Quick Tour. Models of the Atom Thomson – Plum Pudding Why? Known that negative charges can be removed from atom. Problem: just a random

Bohr – fixed energy levels Why? Explains spectral lines. Problem: No reason for fixed energy levels

deBroglie – electron standing waves Why? Explains fixed energy levels Problem: still only works for Hydrogen.

Schrodinger – will save the day!!

Models of the Atom

+

+

Page 4: Particle Physics A Quick Tour. Models of the Atom Thomson – Plum Pudding Why? Known that negative charges can be removed from atom. Problem: just a random

Einstein’s Nobel Prize

1905: Einstein explained the photoelectric effect, which earned him the Nobel Prize in 1921.

Light is made of

tiny packets of

light, called

photons.

Page 5: Particle Physics A Quick Tour. Models of the Atom Thomson – Plum Pudding Why? Known that negative charges can be removed from atom. Problem: just a random

Atomic Structure

Page 6: Particle Physics A Quick Tour. Models of the Atom Thomson – Plum Pudding Why? Known that negative charges can be removed from atom. Problem: just a random

The Smallest Atom: H

Electron

Photon

Quarks

Gluons

Page 7: Particle Physics A Quick Tour. Models of the Atom Thomson – Plum Pudding Why? Known that negative charges can be removed from atom. Problem: just a random

Matter and Antimatter

Page 8: Particle Physics A Quick Tour. Models of the Atom Thomson – Plum Pudding Why? Known that negative charges can be removed from atom. Problem: just a random

Bosons

Page 9: Particle Physics A Quick Tour. Models of the Atom Thomson – Plum Pudding Why? Known that negative charges can be removed from atom. Problem: just a random

Pulling Quarks Apart

Page 10: Particle Physics A Quick Tour. Models of the Atom Thomson – Plum Pudding Why? Known that negative charges can be removed from atom. Problem: just a random
Page 11: Particle Physics A Quick Tour. Models of the Atom Thomson – Plum Pudding Why? Known that negative charges can be removed from atom. Problem: just a random

Colliding Protons

Page 12: Particle Physics A Quick Tour. Models of the Atom Thomson – Plum Pudding Why? Known that negative charges can be removed from atom. Problem: just a random
Page 13: Particle Physics A Quick Tour. Models of the Atom Thomson – Plum Pudding Why? Known that negative charges can be removed from atom. Problem: just a random
Page 14: Particle Physics A Quick Tour. Models of the Atom Thomson – Plum Pudding Why? Known that negative charges can be removed from atom. Problem: just a random

ATLAS Detector

Page 15: Particle Physics A Quick Tour. Models of the Atom Thomson – Plum Pudding Why? Known that negative charges can be removed from atom. Problem: just a random

Baryons and Mesons

Page 16: Particle Physics A Quick Tour. Models of the Atom Thomson – Plum Pudding Why? Known that negative charges can be removed from atom. Problem: just a random

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