deletions | additions       diff --git a/figures/polarization-in-collisions/caption.tex b/figures/polarization-in-collisions/caption.tex  index c101201..16f9376 100644  --- a/figures/polarization-in-collisions/caption.tex  +++ b/figures/polarization-in-collisions/caption.tex 
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\label{fig:polarization} Proof of principle for polarization in collisions around the Z pole energy at LEP, $E_{\rm LEP ($E_{\rm  beam}=$ 44.71 GeV. GeV).  The measured transverse polarization of the two electron bunches is plotted as function of time. One of the two electron bunches was brought into collisions with a positron bunch at 4:10 am, and remained polarized at the same level for more than five hours afterwards.