# Natural Units

1. Jun 18, 2008

### K.J.Healey

If I had was given a yukawa potential of the form:

$$\text{YL}[\text{r\_}]=\left(\left.g_L{}^{\wedge}2\right/r\right) \text{Exp}\left[-\mu _Lr (c/\hbar )\right]$$

I put the c/h in the exponent to make it unitless, but what do I do about the outside?

i'm given the coupling constant is 0.3. Just 0.3. So should the potential need the units of eV?

So should i then take what I have and multiply it by "c hbar"? Its an inverse length right now, so i figure "ch" = "m eV s/s"
is this right?

Last edited: Jun 18, 2008