One loop correction to $Z\rightarrow \nu\nu$ in the Minimal R-symmetric Supersymmetric Standard Model

12 Jan 2019 Sun Ke-Sheng Chen Jian-Bin Yang Xiu-Yi Zhang Hai-Bin

We analyze the one loop correction to $Z\rightarrow \nu\nu$ decay in framework of Minimal R-symmetric Supersymmetric Standard Model(MRSSM) in detail with normal and inverse neutrino mass orderings, as a function of $\tan\beta$, Dirac mass parameters $M_D^W$ and $\mu_u(\mu_d)$, slepton mass $m_l$ that parameterize the mass matrices. The numerical results indicate that the branching ratio for $Z\rightarrow \nu\nu$ decay is compatible with the experimental measurement and the SM expectation at $2\sigma$ level... (read more)

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