Is the 125 GeV Higgs the superpartner of a neutrino?

Abstract

Recent LHC searches have provided strong evidence for the Higgs, a boson whose gauge quantum numbers coincide with those of a SM fermion, the neutrino. This raises the mandatory question of whether Higgs and neutrino can be related by supersymmetry. We study this possibility in a model in which an approximate R-symmetry acts as a lepton number. We show that Higgs physics resembles that of the SM-Higgs with the exception of a novel invisible decay into Goldstino and neutrino with a branching fraction that can be as large as ~10%. Based on naturalness criteria, only stops and sbottoms are required to be lighter than the TeV with a phenomenology dictated by the R-symmetry. They have novel decays into quarks+leptons that could be seen at the LHC, allowing to distinguish these scenarios from the ordinary MSSM.

19 pages, 8 figures

References in corpus (5)

• Search for new physics in the multijet and missing transverse momentum final state in proton-proton collisions at sqrt(s) = 7 TeV
• Stop the Top Background of the Stop Search
• Search for second generation scalar leptoquarks in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector
• Fitting Neutrino Physics with a U(1)_R Lepton Number
• A Spin-1 Top Quark Superpartner

Cited by in corpus (16)

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• Higgs boson mass and electroweak observables in the MRSSM
• Dirac gauginos, R symmetry and the 125 GeV Higgs
• Higgs boson mass, neutrino masses and mixing and keV dark matter in an $U(1{)}_R-$ lepton number model
• SUSY Faces its Higgs Couplings
• Mixing stops at the LHC
• 7 keV Sterile neutrino dark matter in $U(1{)}_R-$ lepton number model
• Weak Scale Baryogenesis in a Supersymmetric Scenario with R-parity violation
• Minimal muon anomalous magnetic moment
• $h\to \gamma \gamma$ in $U(1{)}_R-$ lepton number model with a right-handed neutrino
• Sneutrino Higgs models explain lepton non-universality in CMS excesses
• LHC phenomenology and baryogenesis in supersymmetric models with a $U(1{)}_R$ baryon number
• Light top squarks in $U(1{)}_R$-lepton number model with a right handed neutrino and the LHC
• Probing a slepton Higgs on all frontiers
• CP Violation in Pseudo-Dirac Fermion Oscillations