Nuclear and Particle charts

Dr P Lawson

From you to the quark

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

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