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arXiv · 1910.00749

Top quark as a probe of heavy Majorana neutrino at the LHC and future collider

Ning Liu·Zong-guo Si·Lei Wu·Hang Zhou·Bin Zhu
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Abstract

Right-handed (RH) Majorana neutrinos play a crucial role in understanding the origin of neutrino mass, the nature of dark matter and the mechanism of matter-antimatter asymmetry. In this work, we investigate the observability of heavy Majorana neutrino through the top quark neutrinoless double beta decay process $t \to b \ell^+ \ell^+ j j$ at hadron colliders. By performing detector level simulation, we demonstrate that our method can give stronger limits on the light-heavy neutrino mixing parameters $|V_{eN, \mu N}|$ in the mass range of 15 GeV $< m_N <$ 80 GeV than other existing collider bounds.

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Ning Liu, Zong-guo Si, Lei Wu, Hang Zhou, Bin Zhu. 2019-10-02. Top quark as a probe of heavy Majorana neutrino at the LHC and future collider. https://doi.org/10.1103/physrevd.101.071701

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