- #1

sleventh

- 64

- 0

## Homework Statement

I am to find the particles trajectory to the first order of r/a knowing it to have the Yukawa potential

v(r)=V[tex]_{\circ}[/tex]r[tex]_{\circ}[/tex][tex]/[/tex]r * e[tex]^{-r/r_{\circ}}[/tex]

= -k/r * e[tex]^{-r/a}[/tex]

## Homework Equations

[tex]\theta[/tex](r)= [tex]\int[/tex] (1/r[tex]^{2}[/tex])/[tex]\sqrt{2\mu (E-U-l^{2}/2\mu r^{2}}[/tex]) dr

## The Attempt at a Solution

My attempt goes as far as using the effective potential given to have a basic equation of motion. I infortunately do not know what is meant by "to first order of"

any help or recomended readings would be greatly apreciated. I am a bit lost.