deletions | additions       diff --git a/Luminosity and Energy.tex b/Luminosity and Energy.tex  index 5cb8b31..6624e72 100644  --- a/Luminosity and Energy.tex  +++ b/Luminosity and Energy.tex 
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\subsection{Luminosity and Energy}  The state-of-the-art machine parameters can be found in Ref.~\cite{cite:1305.6498}, for the four configurations at √s = centre-of-mass energies of interest, the Z pole ($\sqrt{s} \sim m_{\rm Z}$), the WW threshold ($\sqrt{s} \sim 2 m_{\rm W}$), the HZ cross-section maximum ($\sqrt{s} \sim 240$ GeV), and the top-pair threshold ($\sqrt{s} \sim 2m_{\rm top}$).  The 12 GV  RF system is designed to compensate for the energy loss by synchtron-radiation synchrotron radiation  at a the maximum centre-of-mass energy.  Summary of the machine parameters (with reference to the IPAC paper), comparison with Linear Colliders. Explanation of the increase when the centre-of-mass energy decreases.