Discovering Nonstandard Higgs bosons in the H -> ZA Channel Decay to Multileptons
arXiv:1211.4869 · doi:10.1007/JHEP02(2013)152
Abstract
In this article we consider the possibility of observing nonstandard Higgs bosons in the H -> Z A -> Z tau+ tau- channel. We present three benchmark scenarios in the NMSSM where H -> ZA is the dominant decay mode for one of the nonstandard Higgs bosons while the lightest CP-even Higgs is Standard Model like. Using the latest CMS multilepton analysis based on 7 TeV LHC data, we put limits on the signal cross-section, which constrain leptophilic scenarios. Projecting to future LHC analyses with improvements in background modeling, we show that with O(30) fb^{-1} of data, such a multilepton analysis is very close to constraining our NMSSM benchmarks. As we illustrate with a toy model, for light A masses, the large boost of the A makes it inefficient to select two hadronic taus, since isolation and the transverse momenta are in tension. This efficiency could be improved by including boosted di-tau jets as an object in future multilepton analyses. We also discuss different methods to confirm this scenario by reconstruction of the m_H and m_A masses. In particular we consider the transverse mass distribution, collinear mass distribution and an analytical solution using trial masses.
arXiv comment18 pages, 5 figures. Added references, revised Section 2, results unchanged
References in corpus (24)
- Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
- Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
- A Brief Introduction to PYTHIA 8.1
- New Generation of Parton Distributions with Uncertainties from Global QCD Analysis
- Identifying Boosted Objects with N-subjettiness
- NMHDECAY: A Fortran Code for the Higgs Masses, Couplings and Decay Widths in the NMSSM
- Search for neutral Higgs bosons decaying to tau pairs in pp collisions at sqrt(s) = 7 TeV
- The Minimal Supersymmetric Fat Higgs Model
- A New Mass Reconstruction Technique for Resonances Decaying to di-tau
- Search for a light charged Higgs boson in top quark decays in pp collisions at sqrt(s) = 7 TeV
- Search for charged Higgs bosons decaying via H+ -> tau nu in top quark pair events using pp collision data at sqrt(s) = 7 TeV with the ATLAS detector
- Light Axion within the Next-to-Minimal Supersymmetric Standard Model
- Nonstandard Higgs Boson Decays
- Mass Determination in SUSY-like Events with Missing Energy
- Transverse masses and kinematic constraints: from the boundary to the crease
- Search for anomalous production of multilepton events in pp collisions at sqrt(s) = 7 TeV
- Search for neutral MSSM Higgs bosons decaying to tau^+ tau^- pairs in proton-proton collisions at sqrt(s) = 7 TeV with the ATLAS detector
- Many Light Higgs Bosons in the NMSSM
- Searching for with Multi-Leptons
- Multi-Lepton Signals of Multiple Higgs Bosons
- Ditau jets in Higgs searches
- Ditau-Jet Tagging and Boosted Higgses from a Multi-TeV Resonance
- LHC Discovery Potential for Non-Standard Higgs Bosons in the 3b Channel
- Multi-Lepton Signals of the Higgs Boson