Beam Polarization and Cross Section
Sleptons have handedness though they are scalar particles.
Because of this their productions cross sections depend on
the electron beam polarization.
You can thus select the slepton handedness by adjusting the
The following java applet shows you how the cross sections for
smuon pair production depend on the beam polarization.
You can change the beam polarization by dragging your mouse
left or right in the graph window.
The blue curve is the right-handed slepton (smu_R), while
the red one is the left-handed slepton (smu_L).