Coulomb barrier

The Coulomb barrier, named after Coulomb, is the electrostatic repulsion of two point charges. Overcoming the Coulomb barrier is essential for achieving nuclear fusion.

<math>U={{k e^2} \over r}<math>

with

k = Coulomb's constant = <math>8.9876x10^9<math>

e = charge of electron = <math>4.8032x10^{-10}<math>

r = separation