Search for the Elusive Higgs Boson Using Jet Structure at LHC

Abstract

We consider the production of a light non-standard model Higgs boson of order $100~\GEV$ with an associated $W$ boson at CERN Large Hadron Collider. We focus on an interesting scenario that, the Higgs boson decays predominately into two light scalars $\chi$ with mass of few GeV which sequently decay into four gluons, i.e. $h\to 2\chi \to 4g$. Since $\chi$ is much lighter than the Higgs boson, it will be highly boosted and its decay products, the two gluons, will move close to each other, resulting in a single jet for $\chi$ decay in the detector. By using electromagnetic calorimeter-based and jet substructure analyses, we show in two cases of different $\chi$ masses that it is quite promising to extract the signal of Higgs boson out of large QCD background.

20 pages, 7 figures

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Cited by in corpus (6)

• Boosted objects: a probe of beyond the Standard Model physics
• Jet Substructure Without Trees
• W-jet Tagging: Optimizing the Identification of Boosted Hadronically-Decaying W Bosons
• Measuring spin and CP from semi-hadronic ZZ decays using jet substructure
• Boosted Semileptonic Tops in Stop Decays
• Associated Production of Non-Standard Higgs Bosons at the LHC