dr aidan robson. the standard model of particle physics
TRANSCRIPT
The Large Hadron Colliderand the Higgs Boson
Dr Aidan Robson
PARTICLE PHYSICS
SSERC/RCUK CPD
The Standard Model of Particle Physics
The Standard Model of Particle Physics
The Standard Model of Particle Physics
The Standard Model of Particle Physics
The Standard Model of Particle Physics
?
proton? proton?
photon
~450nm
photon
De Broglie
De Broglie
Glasgow electron microscope
electron
proton? proton?
Glasgow electron microscope Stanford linear accelerator (1960)
Stanford linear accelerator (1960)
proton? proton?
Glasgow electron microscope Stanford linear accelerator (1960)
Stanford linear accelerator (1960)
proton
Four forces of nature
Weak
Strong
Electromagnetic
Gravity
electric charge
mass
weak charge
strongcharge
The Standard Model of Particle Physics
The Standard Model of Particle Physics
mesons= 2 quarks
baryons= 3 quarks
+ + + - - -±
+ + + - - -±
+2 3
–1 3
–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,bg
g
l–
l+
l–
l+
Z
Z
Couplings
Couplings
H→tt : New result 26/11/13 !
Picture from Marusa Bradac
Higher
