Nuclear and Particle charts
9
Nuclear and Particle charts Dr P Lawson
Transcript of Nuclear and Particle charts
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Nuclear and Particle charts
Dr P Lawson
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From you to the quark
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Particles and forces
‘u’ quarks ‘d’ quarks electron neutrino
E.M.charge
+2/3
Strongforce
yes yes no no
Weakforce
yes yes yes yes
Heavier generations have identical
pattern
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Fundamental
q=0 except
Hadrons
conservation
etc ?
standard
model
13/10/02 - v15
fermions
spin 1/2
Leptons
1
electronsq=-1
neutrino
2
muonq=-1
neutrino
3
Tauq=-1
neutrino
Quarks
(not separate)
1
uq=+2/3
dq=-1//3
2
cq=+2/3
sq=-1//3
3
tq=+2/3
bq=-1//3
Bosons
spin 1 Exchange
weak
W+q=1
W-q=-1
Zo
electromagneticPhoton
stronggluon
gravitationalgraviton ?
BosonsMesons
q,aq
Fermions
Baryons
q,q,q
anti Baryons
aq,aq,aq
laws
anti = minus
otherwise zero
charge
Baryon numberBaryons = 1
q=+1/3
Lepton NumberLepton = 1
strangenesss=-1
charm
Higgs
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