CP-violating Anomalous $WWγ$ Couplings in e^+e^- Collisions

Details CP-violating Anomalous $WWγ$ Couplings in e^+e^- Collisions CP-violating Anomalous $WWγ$ Couplings in e^+e^- Collisions

1999-04-02

arxiv.org/abs/hep-ph/9904215v1

Phys.Lett. B457 (1999) 193-201

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages (LaTeX), 5 figures (embedded)

Scientific paper

10.1016/S0370-2693(99)00527-4

We investigate the sensitivity of future linear collider experiments to CP violating $WW\gamma$ couplings in the process $e^{+}e^{-} \to \nu\bar{\nu}\gamma$. We consider several sets of machine parameters: centre of mass energies $\sqrt{s}$ = 350, 500 and 800 GeV and operating at different luminosities. From an analysis of the differential cross-section the following 95% C.L. limits $|\tilde{\kappa}_{\gamma}| < 0.18$, $|\tilde{\lambda}_{\gamma}| < 0.069$ are estimated to be obtained at a future 500 GeV LC with an integrated luminosity of $125 \fb^{-1}$, a great improvement as compared to the LEP2 reach, where a senstitivity of order 2 for both couplings is found.

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