Nuclei

Usual [21]

Giant [9]

Type of interaction

Strong

Assumed

Carriers

Pions

Muon antineutrino

Rest mass m r , MeV

139.57

0.19

Compton wavelength ƛ = / m r c , m

1.46 × 10 15

1.05 × 10 12

Nucleus radius R, m

~ 10 14

0.8 × 10 12

Yukawa ratio, m−1

U n u c l ~ exp ( R / ƛ ) / R

~ 10 12

3 × 10 11