Isospin

1
Isospin
Notice nn, np, pp hadronic interactions are
very similar.
Use spin formalism to take into account Pauli
exclusion principle
2
If isospin were an exact symmetry this reaction
would be allowed 16O(a,d)18F(I1)

• True
• False
• Not enough information to tell.

3
If isospin were an exact symmetry this reaction
would be allowed dd ? ap0

• True
• False
• Not enough information to tell.

4
If isospin were an exact symmetry this reaction
would be allowed 14C(d,a)12B(I2)

• True
• False
• Not enough information to tell.

5
If isospin were an exact symmetry what would this
ratio be

• 1
• 2
• 1/2
• 3
• 1/3.