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.

Comments: 26 pages, 11 figures and 6 tables