Recent content by tmonk

I am attempting to derive the formula for the variance of a continuous uniform distribution where f(x) = \left\{ \begin{array}{ll} \frac{1}{b-a} & \mbox{$a \leq $x$ \leq b$};\\ 0 & \mbox{otherwise}.\end{array} \right. I was successful, but only after using Wolfram Alpha to...

I thought it was a W+ boson in this case, which turns the u into a d?

For my Physics exam, I need to know 3 Feynman diagrams: beta-plus/minus decay, proton electron capturing, and neutrinos interacting with matter. I know that there's a W- in \beta- decay, W+ in \beta+ decay, which seems logical. However, in proton electron capture there is a W+ boson, and...