Can we use exclusive electron production (pp->p+ee+p) via two-photon exchange to measure the luminosity?
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AndrewHamilton - 27 Jun 2006
First we need to know the predicted cross sections. Here are the cross sections from LPAIR for exclusive ee (eta < 2.5) at 14Tev and 900Gev as a function of the electron Et cut
exc_ee_cs.png.
It looks like a dielectron trigger threshold around 10 Gev might be possible...
emailed Nick Ellis and Monika Wielers to get more info...
Even at 10Gev it doesn't look very good, at L=10^30 the event rate is only 10^-6 Hz.