Discovering a Higgs boson decaying to four jets in supersymmetric cascade decays

Brando Bellazzini, Csaba Csáki, Jay Hubisz, Jing Shao

Research output: Contribution to journalArticle

17 Scopus citations

Abstract

The Higgs boson may dominantly decay to four light jets through a light pseudoscalar intermediary: h→2η→4j, making reconstruction at the LHC particularly challenging. We explore the phenomenology of such "buried Higgs" scenarios in which the primary discovery channel of the Higgs is in cascade decays of superpartners. QCD backgrounds that would otherwise overwhelm the Higgs decay are suppressed by the requirement of high pT jets and large missing transverse momentum that are the typical signatures of TeV scale supersymmetry. Utilizing jet substructure techniques, we find that for buried Higgses in the 100-120 GeV range, a 5σ discovery can be expected with roughly 10-25fb-1 of data at ECM=14TeV. For lighter Higgs bosons, the signal is contaminated by hadronically decaying W bosons, and discovery remains an unsolved challenge.

Original languageEnglish (US)
Article number095018
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume83
Issue number9
DOIs
StatePublished - May 24 2011

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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