Dr Aidan Robson. The Standard Model of Particle Physics.

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Presentation transcript:

Dr Aidan Robson

The Standard Model of Particle Physics

? ?

proton?

photon

~450nm photon

De Broglie

Glasgow electron microscope

electron proton?

Glasgow electron microscope Stanford linear accelerator (1960) proton?

Glasgow electron microscope Stanford linear accelerator (1960) proton

Four forces of nature Weak Strong Electromagnetic Gravity electric charge mass weak charge strong charge

The Standard Model of Particle Physics

mesons = 2 quarks baryons = 3 quarks

±

± +2 3 –1 3 –

‘Young man, if I could remember the names of these particles, I would have been a botanist!’ E. Fermi to his student L. Lederman (both Nobel prizewinners)

The Standard Model of Particle Physics

H t,b g g l– l+ l– l+ Z Z

Couplings

H→  : New result 26/11/13 !

Picture from Marusa Bradac

Higher

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