Di-Higgs signatures from R-parity violating supersymmetry as the origin of neutrino mass

Abstract

Motivated by the naturalness and neutrino mass generation, we study a bilinear R-parity violating supersymmetric scenario with a light Higgsino-like lightest supersymmetric particle (LSP). We observe that the LSP dominantly decays to $\nu h$ in a large part of the parameter space, and thus study the pair production of electroweakinos followed by the decays ${\tilde{\chi }}_1^{\pm }\to {\tilde{\chi }}_1^0{W}^{\pm \ast }$ and ${\tilde{\chi }}_1^0\to \nu h$. This leads to an interesting signature of Higgs boson pair production associated with significantly large missing transverse energy which is grossly distinct from the di-Higgs production in the Standard Model. We investigate the perspective of probing such signatures by performing a realistic detector level simulation of both the signal and corresponding backgrounds for the high-luminosity high energy phase of the Large Hadron Collider (LHC). We also advocate some observables based on kinematical features to provide an excellent handle to suppress the backgrounds.

26 pages, 11 figures and 6 tables

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• Machine-Learning Performance on Higgs-Pair Production Associated with Dark Matter at the LHC
• Multi-Higgs Boson Probes of the Dark Sector
• R-Parity Violating Supersymmetry and the 125 GeV Higgs signals
• Boosted Higgs-pair production associated with large $E_T^{miss}$: a signal of $Z^{\prime }$
• HL-LHC sensitivity to higgsinos from natural SUSY with gravitino LSP