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Patrick Janot added Beam energy measurement.tex
almost 11 years ago
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\subsection{Beam energy measurement}
Explain briefly the unique and superb beam energy measurement with resonant depolarization at circular colliders when transverse polarization is available. Compare with linear collider ? Mention the possibility of non-colliding bunches, and of continuous energy measurement. State a plausible beam energy precision at the Z pole and WW threshold.
Explain that the beam energy is to be measured with ${\rm WW}$, ${\rm ZZ}$, and ${\rm Z}(\gamma)$ events at higher energies, and quote the expected accuracy.
