On Sun, Mar 17, 2013 at 5:50 PM, <[email protected]> wrote: > BTW there is no potential barrier here. The proton and the electron carry > opposite charges, so they are attracted to one another, rather than repelled. > What is missing is sufficient mass to form a neutron. This can however be > overcome if the mass difference is supplied in the form kinetic energy.
How does the required energy compare to the spin momentum of the electron?
