particle physics
DESCRIPTION
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 guess Rutherford – Solar System Why? Scattering showed hard core. - PowerPoint PPT PresentationTRANSCRIPT
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 guess
Rutherford – Solar System Why? Scattering showed hard core. Problem: electrons should spiral into nucleus in
~10-11 sec.
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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
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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.
Atomic Structure
The Smallest Atom: H
Electron
Photon
Quarks
Gluons
Matter and Antimatter
Bosons
Pulling Quarks Apart
Colliding Protons
ATLAS Detector
Baryons and Mesons
