The Particle "Zoo"
The Particle "Zoo" Forces Fred Reines


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Announcement

Paper
(submitted to
Phys.Rev.Lett)

Clinton on
Neutrinos

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The Particle Zoo

Matter Particles - Quarks and Leptons
First Generation Second Generation Third Generation
Symbol Name
u up quark
d down quark
e electron
ne electron neutrino
Symbol Name
c charm quark
s strange quark
m muon
nm muon
neutrino
Symbol Name
t top quark
b bottom quark
t tau
nt tau
neutrino
Force Particles
Symbol Name Remarks
g Photon better known to us as "light"; neutral; carries electromagnetic force
W,Z W and Z bosons very heavy; W is charged, Z is neutral; carry the weak nuclear force
g gluon carries the strong nuclear force, comes in 8 color combinations
G graviton hypothesized mediator of gravitation; never observed
 

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Dave Casper