Charged-current non-standard neutrino interactions at the LHC and HL-LHC |
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Authors: | Chong-Xing Yue Xue-Jia Cheng Ji-Chong Yang |
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Institution: | 1. Department of Physics, Liaoning Normal University, Dalian 116029, China;2. Center for Theoretical and Experimental High Energy Physics, Liaoning Normal University, Dalian 116029, China |
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Abstract: | A series of new physics scenarios predict the existence of the extra charged gauge boson \begin{document}$ W' $\end{document}![]() , which can induce charged-current (CC) non-standard neutrino interactions (NSIs). The theoretical constraints on the simplified \begin{document}$ W' $\end{document}![]() model and further on the CC NSI parameters \begin{document}$ \widetilde{\epsilon}^{ qq'Y}_{\alpha\beta} $\end{document}![]() from partial wave unitarity and \begin{document}$ W' $\end{document}![]() decays are considered. The sensitivity of the process \begin{document}$ p p \rightarrow W'\rightarrow \ell\nu $\end{document}![]() to the \begin{document}$ W' $\end{document}![]() model at the LHC and high-luminosity (HL) LHC experiments is investigated by estimating the expected constraints on \begin{document}$ \widetilde{\epsilon}^{qq'Y}_{\alpha\beta} $\end{document}![]() (\begin{document}$ \alpha = \beta = e $\end{document}![]() or μ) using a Monte-Carlo (MC) simulation. We find that the interference effect plays an important role, and the LHC can strongly constrain \begin{document}$ \widetilde{\epsilon}^{qq'L}_{\alpha\beta} $\end{document}![]() . Compared with those at the \begin{document}$ 13 {\rm TeV} $\end{document}![]() LHC with \begin{document}$ {\cal{L}}=139{\rm fb}^{-1} $\end{document}![]() , the expected constraints at the \begin{document}$ 14 {\rm TeV} $\end{document}![]() LHC with \begin{document}$ {\cal{L}}=3{\rm ab}^{-1} $\end{document}![]() can be strengthened to approximately one order of magnitude. |
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Keywords: | high energy collider new gaugen boson $W' $ charged-current non-standard neutrino interactions |
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