| Popis: |
In this study, we investigate the potential of the $$\gamma \gamma \rightarrow W^+ W^-$$ , $$e^+ \gamma \rightarrow e^+ \gamma ^{*}\gamma \rightarrow e^+ W^- W^+$$ and $$e^+ e^-\rightarrow e^+ \gamma ^{*} \gamma ^{*} e^-\rightarrow e^+ W^- W^+ e^-$$ processes at the Compact Linear Collider (CLIC) operating in $$\gamma \gamma $$ , $$\gamma ^*\gamma $$ and $$\gamma ^*\gamma ^*$$ modes to probe the anomalous triple gauge bosons $$W^+W^-\gamma $$ couplings. To identify the $$W^+W^-$$ production in the final state, we consider the leptonic, semi-leptonic and hadronic decays channels. Based on future CLIC data, we assume $${{\mathcal {L}}}=1\,\mathrm{ab^{-1}}@ \sqrt{s}=0.380 \,\mathrm{TeV}$$ , $${{\mathcal {L}}}=2.5\,\mathrm{ab^{-1}}@ \sqrt{s}=1.5\,\mathrm{TeV}$$ , $${{\mathcal {L}}}=5 \,\mathrm{ab^{-1}}@ \sqrt{s}=3\,\mathrm{TeV}$$ and $$\delta _{sys}=0\%, 5\%, 10\%, 15\%$$ for our study. Using these data, the strongest limits expected with the $$\gamma \gamma \rightarrow W^+ W^-$$ , $$e^+ \gamma \rightarrow e^+ \gamma ^{*}\gamma \rightarrow e^+ W^- W^+$$ and $$e^+ e^-\rightarrow e^+ \gamma ^{*} \gamma ^{*} e^-\rightarrow e^+ W^- W^+ e^-$$ processes on the anomalous $$\Delta \kappa _\gamma $$ and $$\lambda _\gamma $$ couplings with $$\delta _{sys}=0\%$$ at $$95\%$$ C.L. are: $$\Delta \kappa _\gamma = \pm 0.00007$$ , $$\lambda _\gamma = [-0.00004, 0.00102]$$ , $$\Delta \kappa _\gamma = \pm 0.00015$$ , $$\lambda _\gamma = [-0.00013, 0.00340]$$ and $$\Delta \kappa _\gamma = [-0.00048, 0.00049]$$ , $$\lambda _\gamma = [-0.00048, 0.00782]$$ . The bounds for $$\Delta \kappa _\gamma $$ and $$\lambda _\gamma $$ with $$\delta _{sys}=5\%, 10\%, 15\%$$ are weaker with respect to the bounds obtained with $$\delta _{sys}=0\%$$ . These limits show potential sensitivity when compared with those from LHC and HL-LHC data and can be a very promising option to probe the anomalous $$W^+W^-\gamma $$ couplings at the CLIC. In addition, a prominent advantage of these processes is that they isolate anomalous $$W^+W^-\gamma $$ couplings, thus allowing the study of $$W^+W^-\gamma $$ couplings independently from $$W^+W^-Z$$ . |
