Collider Phenomenology of $e^{-}{e}^{-}\to W^{-}{W}^{-}$

Abstract

Whether in nature exists Majorana neutrino is one of the most fundamental questions in physics. It is directly related to the violation of accidental $U(1)$-lepton number symmetry(LNV). Enormous efforts had been put into such test and among them, one conventional experiment is the neutrinoless double-beta decay ($0\nu \beta \beta$). On the other hand, there have been proposals of future electron-positron colliders such as International Linear Collider (ILC) for precision measurements of Higgs boson or new discovered beyond SM particles and it can potentially be converted into an electron-electron collider. Such collider enables a new probe of Majorana neutrino via the inverse $0\nu \beta \beta$ process($e^{-}{e}^{-}\to W^{-}{W}^{-}$) as an alternative and complementary test to the conventional neutrinoless double-beta decay experiments. In this paper, we illustrate the searching strategies of $e^{-}{e}^{-}\to W^{-}{W}^{-}$ at future electron colliders, and find that the channels of pure hadronic, semi-leptonic with muon and pure leptonic with muons have the most discovery potential.

arXiv comment20 pages, 7 figures, add some data, revise introduction and other parts

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Cited by in corpus (5)

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• Searching for Weak Singlet Charged Scalar at the Large Hadron Collider
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