Nuclear structure

What is hindrance factor?
What does it indicate? If the Hindrance is very high? If its low?

For eg. 103Rh (39.76 keV) E3 transition has got hindrance factor of ~400.
What does this mean.

The Hindrance is calculated using

Theoretical Lambda(E3) / Exptl. Lambda (E3)
Lambda(E3) -- > E3 Transition probablity.

Theoretical value obtained frm the single particle estimates.
Weisskopf or Moszowski single particle estimates.
for E3 : 34(A^2) (E^7)

exptl : 0.693 / [(t1/2) (1+Total ICC)]
Total ICC - total conversion coefficient

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