Parameters
a 0 = ln c 3 ( 1 − V p ε p )
a1 = ac (MeV)
a2 = 4aa (MeV)
a3 = Vp (MeV)
No. of data points
0.697 ± 0.442
0.302 ± 0.036
65.544 ± 2.358
0.494 ± 1.342
88
Equation
σ n , p = exp ( 0.697 + 0.302 2 Z − 1 T A 1 3 − 65.544 A − 2 Z + 1 T A − 0.494 1 T ) M p M n σ R