Many Light Higgs Bosons in the NMSSM

Abstract

The next-to-minimal supersymmetric model with a light doublet-like CP-odd Higgs boson and small $\tan \beta$ can satisfy all experimental limits on Higgs bosons even with light superpartners. In these scenarios, the two lightest CP-even Higgs bosons, $\hi$ and $\hii$, and the charged Higgs boson, $\hp$, can all be light enough to be produced at LEP and yet have decays that have not been looked for or are poorly constrained by existing collider experiments. The channel $\hi\to \ai\ai$ (where $\ai$ is the lightest CP-odd boson and has mass below $2m_b$) with $\ai\to τ^+τ^-$ or $2j$ is still awaiting LEP constraints for $\mhi>86\gev$ or $82\gev$, respectively. LEP data may also contain $\epem\to \hii\ai$ events where $\hii\to Z\ai$ is the dominant decay, a channel that was never examined. Decays of the charged Higgs bosons are often dominated by $H^\pm \to W^{\pm (\star)} \ai$ with $\ai \to gg,c \bar c, τ^+ τ^-$. This is a channel that has so far been ignored in the search for $t\to \hp b$ decays at the Tevatron. A specialized analysis might reveal a signal. The light $\ai$ might be within the reach of $B$ factories via $Υ\to γ\ai$ decays. We study typical mass ranges and branching ratios of Higgs bosons in this scenario and compare these scenarios where the $\ai$ has a large doublet component to the more general scenarios with arbitrary singlet component for the $\ai$.

15 pages, 47 figures

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Cited by in corpus (35)

• Theory and phenomenology of two-Higgs-doublet models
• The Next-to-Minimal Supersymmetric Standard Model
• The Next-to-Minimal Supersymmetric extension of the Standard Model reviewed
• Scalar and pseudoscalar Higgs production in association with a top-antitop pair
• Physics at the e+ e- Linear Collider
• Confronting the MSSM and the NMSSM with the Discovery of a Signal in the two Photon Channel at the LHC
• A light Higgs scalar in the NMSSM confronted with the latest LHC Higgs data
• Constraining the Axion Portal with B -> K l+ l-
• Measurement of the cross section and angular correlations for associated production of a Z boson with b hadrons in pp collisions at sqrt(s) = 7 TeV
• New constraints on a light CP-odd Higgs boson and related NMSSM Ideal Higgs Scenarios
• Higgs Bosons in the Next-to-Minimal Supersymmetric Standard Model at the LHC
• From the LHC to Future Colliders
• Discovering the Higgs with Low Mass Muon Pairs
• Light Higgs bosons in phenomenological NMSSM
• Unconventional phenomenology of a minimal two-Higgs-doublet model
• Probing the $\mu \nu$SSM with light scalars, pseudoscalars and neutralinos from the decay of a SM-like Higgs boson at the LHC
• The PAMELA excess from neutralino annihilation in the NMSSM
• Unusual Higgs or Supersymmetry from Natural Electroweak Symmetry Breaking
• Light charged Higgs bosons decaying to charm and bottom quarks in models with two or more Higgs doublets
• Direct production of a light CP-odd Higgs boson at the Tevatron and LHC
• BMSSM Higgs Bosons at the Tevatron and the LHC
• Can we discover a light singlet-like NMSSM Higgs boson at the LHC?
• Rare Z-decay into light CP-odd Higgs bosons: a comparative study in different new physics models
• Light Higgs Bosons in NMSSM at the LHC
• Invisible decays of the lightest Higgs boson in supersymmetric models
• Associated production of $Z$ bosons and $b$-jets at the LHC in the combined $k_T$ + collinear QCD factorization approach
• Buried Higgs
• Associated central exclusive production of charged Higgs bosons
• Enhancement of associated H^\pm W^\mp production in the NMSSM
• Measurement of the ttbar production cross section in ppbar collisions at sqrt(s)=1.96 TeV using events with large missing transverse energy and jets
• An effective scanning method of the NMSSM parameter space
• Discovering Nonstandard Higgs bosons in the H -> ZA Channel Decay to Multileptons
• Highlights of Current Higgs Boson Searches
• Genuine NMSSM deviations in the 125 GeV Higgs boson decays
• Prospects for Higgs boson scenarios beyond the Standard Model