Coulomb barrier
From Wikipedia, the free encyclopedia.

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

with

k = Coulomb's constant

e = charge of electron

r = separation

The original article can be found at: http://en.wikipedia.org/wiki/Coulomb_barrier.
All text is available under the terms of the GNU Free Documentation License.