Model-independent limits for anomalous triple gauge bosons W⁺W^-γ coupling at the CLIC

2019/09/23 by Billur, A. A., Köksal, M., Gutiérrez-Rodríguez, A. +1
#FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph)

paper · doi:10.48550/arxiv.1909.10299

Abstract

We investigate the potential of the Compact Linear Collider (CLIC) to probe the anomalous W⁺W^-γ coupling in γγ, γγ^* and γ^*γ^* collisions through the processes γγ→ W⁺ W^-, e⁺ γ→ e⁺ γ^* γ→ e⁺ W^- W⁺ and e⁺ e^-→ e⁺ γ^* γ^* e^- → e⁺ W^- W⁺ e^-. We perform leptonic, semi-leptonic and hadronic decays channels for W⁺W^- production in the final state. Taking \cal L=1\hspace0.8mm\rm ab^-1@ √(s)=0.380\hspace0.8mm\rm TeV, \cal L=2.5\hspace0.8mm\rm ab^-1@ √(s)=1.5\hspace0.8mm\rm TeV and \cal L=5\hspace0.8mm\rm ab^-1@ √(s)=3\hspace0.8mm\rm TeV, based on future CLIC data, the limits for Δκ_γ and λ_γ might reach up to \cal O(10^-5-10^-4) level in the most ideal with 5\hspace0.8mm\rm ab^-1 set data, which shows a potential advantage compared to those from LHC, Tevatron and LEP data. Thus, our results represent that the processes γγ→ W⁺ W^-, e⁺ γ→ e⁺ γ^* γ→ e⁺ W^- W⁺ and e⁺ e^-→ e⁺ γ^* γ^* e^- → e⁺ W^- W⁺ e^- at the CLIC are a very good prospect for probing the anomalous W⁺W^-γ couplings.

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