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Lecture 2 - The current state of fundamental physics - page 22 / 27

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Strong force

Weak force

Electromagnetic force

SU(3) ! SU(2) ! U(1)

8 generators

3 generators

1 generator

8 gluons

3 intermediate vector bosons

1 photon

Z0,W+ ,W !

Note: Gravity is still left out….

David Kastor

COSMOS to HUMANITY, Spring 2008

Force carrying particles of the Standard Model

Lecture 2 , slide 22

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