Direct production of a light CP-odd Higgs boson at the Tevatron and LHC

Abstract

We show that the existing CDF $L=630p{b}^{-1}$ Tevatron data on $pp\to {\mu }^{+}{\mu }^{-}+X$ places substantial limits on a light CP-odd Higgs boson $a$ with $m_a<2m_B$ produced via $gg\to a$, even for $m_a>2m_{\tau }$ for which $BR(a\to {\mu }^{+}{\mu }^{-})$ is relatively small. Extrapolation of this existing CDF analysis to $L=10f{b}^{-1}$ suggests that Tevatron limits on the $a b\anti b$ coupling strength in the region $m_a>8\gev$ could be comparable to or better than limits from Upsilon decays in the $m_a<7\gev$ region. We also give rough estimates of future prospects at the LHC, demonstrating that early running will substantially improve limits on a light $a$ (or perhaps discover a signal). In particular, outside the Upsilon peak region, integrated luminosity of only $5-20f{b}^{-1}$ (depending on $m_a$ and $\sqrt{s}$) could reveal a peak in $M_{{\mu }^{+}{\mu }^{-}}$ and will certainly place important new limits on a light $a$. The importance of such limits in the context of NMSSM Higgs discovery and $(g-2{)}_{\mu }$ are outlined.

25 pages, 12 figures, updated LHC estimates and table based on ATLAS-related input now included (v4 and v5). In addition, comments regarding final ALEPH limits in the Z+4τchannel are included in v5.

References in corpus (15)

• Upsilon production at the Tevatron and the LHC
• Search for Dimuon Decays of a Light Scalar Boson in Radiative Transitions Upsilon -> gamma A0
• Nonstandard Higgs Boson Decays
• The NMSSM Close to the R-symmetry Limit and Naturalness in $h\to aa$ Decays for $m_a<2\mb$
• Probing NMSSM Scenarios with Minimal Fine-Tuning by Searching for Decays of the Upsilon to a Light CP-Odd Higgs Boson
• The NMSSM Solution to the Fine-Tuning Problem, Precision Electroweak Constraints and the Largest LEP Higgs Event Excess
• Search for neutral Higgs bosons decaying into four taus at LEP2
• New constraints on a light CP-odd Higgs boson and related NMSSM Ideal Higgs Scenarios
• Search for a low-mass Higgs boson in Y(3S)-->gamma A^0, A^0-->tau^+tau^- at BABAR
• Radiative Upsilon decays and a light pseudoscalar Higgs in the NMSSM
• Many Light Higgs Bosons in the NMSSM
• A light CP-odd Higgs boson and the muon anomalous magnetic moment
• Unusual Higgs or Supersymmetry from Natural Electroweak Symmetry Breaking
• Search for narrow resonances lighter than ${\rm Y}$ mesons
• Light Charged and CP-odd Higgses in MSSM-like Models

Cited by in corpus (19)

• The Next-to-Minimal Supersymmetric Standard Model
• Search for a light pseudoscalar Higgs boson in the dimuon decay channel 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
• Search for a light pseudoscalar Higgs boson in the boosted $\mu \mu \tau \tau$ final state in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• The charged lepton mass matrix and non-zero ${\theta }_{13}$ with TeV scale New Physics
• Searching for new spin-0 resonances at LHCb
• BMSSM Higgs Bosons at the Tevatron and the LHC
• Light Higgsino Decays as a Probe of the NMSSM
• CoGeNT, DAMA, and Neutralino Dark Matter in the Next-To-Minimal Supersymmetric Standard Model
• Rare Z-decay into light CP-odd Higgs bosons: a comparative study in different new physics models
• Two Higgs Doublet Model in light of the Standard Model H -> tau^+ tau^- search at the LHC
• Deviation from Tri-Bimaximal Mixing and Large Reactor Mixing Angle
• Reduced branching ratio for H -> AA -> 4 tau from A - eta_b mixing
• Enhancement of associated H^\pm W^\mp production in the NMSSM
• Next-to-Minimal Supersymmetric Model Higgs Scenarios for Partially Universal GUT Scale Boundary Conditions
• Seeking the CP-odd Higgs via $h\to {\eta }_{c,b}{\ell }^{+}{\ell }^{-}$
• Hidden Higgs Scenarios: new constraints and prospects at the LHC
• The Higgs Sector and CoGeNT/DAMA-Like Dark Matter in Supersymmetric Models