introduction to particle physics - indico · 2018. 11. 18. · introduction to particle physics...
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Introduction to Particle Physics(for non physics students)
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Angels and Demons is fiction.
What are the facts?
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Angels and Demons is fiction.
What are the facts?
![Page 4: Introduction to Particle Physics - Indico · 2018. 11. 18. · Introduction to Particle Physics (for non physics students) Angels and Demons is fiction. What are the facts? Angels](https://reader035.vdocuments.us/reader035/viewer/2022062613/614919b19241b00fbd675746/html5/thumbnails/4.jpg)
How Old is the Universe?
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20.00
05.00 06.00
09.30
09.59;30”
09.59
10.00
stabababaeat; drink; sleep
breakfast; come to lectures
qwertui
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symmetry
pattern
symmetry
pattern
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symmetry
pattern
symmetry
pattern
Next….
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symmetry
pattern
symmetry
pattern
Next….
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Symmetrywhen warm(high energy)
patterns and structureswhen cold(low energy)
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ANTIMATTER
MATTER
ANTIMATTER
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…why didn’t it mutually destruct?…why is there anything left?
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Matter and the Universe
> 40 orders of magnitude
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What is mattermade of ?
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1.Look
Light source
Object
Eye
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Light source
Object
Eye
1.Look
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Catch 22:There’s a limit to what wecan see with our eye
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Catch 22:There’s a limit to what wecan see with our eye
To look at smallerthings we needto use instrumentsthat can “extend” our vision
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The problem is the wavelength of light compared with the size ofwhat you’re trying to look at
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2. Smash
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…some definitions
for ENERGY.Joules are too bigfor particle energies….
and
0.0000000000000000001Joules is too messy….
So we need morePractical Units
eV, keV,MeV,GeVand welcome to TeV
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…some definitions
for ENERGYJoules are too bigfor particle energies….
and
0.0000000000000000001Joules is too messy….
So we need morePractical Units
eV, keV,MeV,GeVand welcome to TeV
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Einstein
Energy
and
2
E=mc
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LOOK or SMASH
Wavelength
and
Energy
profoundly related
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LOOK or SMASH
Wavelength
and
Energy
profoundly related
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… alsoprofoundly related……
3. Heat
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SMASH or HEAT
Energy
and
Temperature
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SMASH or HEAT
Energy
and
Temperature
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TemperatureEnergy andTime
The Universe
in
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…and the nature of matter
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More in Vsi
And particle odyssey
A Very Short Introduction
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Particles in Three Minutes
A quick survey of how we got here….
….and where we think we’re going next.
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The heart of matter in 1905(Einstein’s great year)
Atoms
electrons
Photons(Einstein)
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The heart of matter in 1955 (when CERN began)
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electronElectronand Protonutterlydifferent.
proton 2000timesheavier
10000timesbigger
The heart of matter in 1955 (when CERN began)
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STRONG force binds nucleus
WEAK force = radioactivity
1955
FORCES
in theatom
ELECTROMAGNETIC force binds electrons
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Cosmic Rays had revealed STRANGE particles
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1955 CERN accelerators replicate cosmic rays on Earth…
..record the images and reveal the real heart of matter….
…..the beginnings of modern high energy particle physics
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The heart of matter in 2005 (and even in 2009 !)
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The heart of matter in 2005(and even in 2009 !)
Electronand quarkverysimilarin
MassSizeSpin
and in howthey respondto theFORCES
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electroWEAK force = radioactivity
2009
FORCES
in theatom
ELECTROweak force binds electrons
United
electrowek/Q
CD
Colour QCD force binds quarks
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Symmetrywhen warm(high energy)
patterns and structureswhen cold(low energy)
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GrandUnifiedForce
ElectromagneticWeakStrong
ElectroWeakStrong (QCD)
FORCES 1955-2005
COLD
WARM
HOT
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Standard Model ofQuarks Leptons and forces = pattern based on mass“cold” =“low” energy= below 1 TeV
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superSymmetrywhen “warm”(= high energy > 1TeV)
Higgs BosonSupersymmetryNature of Reality
Standard Model ofQuarks Leptons and forces = pattern based on mass“cold” =“low” energy= below 1 TeV
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More in Vsi
And particle odyssey
A Very Short Introduction
![Page 51: Introduction to Particle Physics - Indico · 2018. 11. 18. · Introduction to Particle Physics (for non physics students) Angels and Demons is fiction. What are the facts? Angels](https://reader035.vdocuments.us/reader035/viewer/2022062613/614919b19241b00fbd675746/html5/thumbnails/51.jpg)
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…and patterns (that change)
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