Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1992-12-28
Nucl.Instrum.Meth.A335:385-396,1993
Physics
High Energy Physics
High Energy Physics - Phenomenology
16 pages and 7 figures attached as PostScript files, LaTeX, HUPD-9217 (Revised for 4 points: 2 are important, see the top of t
Scientific paper
10.1016/0168-9002(93)91222-9
We present methods to measure the beam polarizations and the luminosity of $\gamma \gamma$ colliders at TeV energy scale. The beam polarizations of a $\gamma \gamma$ collider can easily be monitored by comparing the numbers of events of the processes $\gamma \gamma$ $\rightarrow$ $\ell^+ \ell^-$ and $\gamma \gamma$ $\rightarrow$ $W^+ W^-$, where $\ell$ means $e$ or $\mu$. The luminosity of a $\gamma \gamma$ collider is also measurable by the event rate of $W$ boson pair productions and the light lepton pair productions.
Endo Ichita
Kodaira Jiro
Watanabe Isao
Yasui Yukinori
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