Discovering Higgs Boson Decays to Lepton Jets at Hadron Colliders

Journal Article · Fri Dec 10 04:00:00 EST 2010 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.105.241801· OSTI ID:21554459

Falkowski, Adam ^[1]; Ruderman, Joshua T ^[2]; Volansky, Tomer ^[3]; Zupan, Jure ^[4]

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1. NHETC and Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey 08854 (United States)
2. Department of Physics, Princeton University, Princeton, New Jersey 08544 (United States)
3. School of Natural Sciences, Institute for Advanced Study, Princeton, New Jersey 08540 (United States)
4. Faculty of Mathematics and Physics, University of Ljubljana Jadranska 19, 1000 Ljubljana (Slovenia)

The Higgs boson may decay predominantly into a hidden sector, producing lepton jets instead of the standard Higgs signatures. We propose a search strategy for such a signal at hadron colliders. A promising channel is the associated production of the Higgs boson with a Z or W. The dominant background is Z or W plus QCD jets. The lepton jets can be discriminated from QCD jets by cutting on the electromagnetic fraction and charge ratio. The former is the fraction of jet energy deposited in the electromagnetic calorimeter and the latter is the ratio of energy carried by charged particles to the electromagnetic energy. We use a Monte Carlo description of detector response to estimate QCD rejection efficiencies of O(10{sup -3}) per jet. The expected 5{sigma} (3{sigma}) discovery reach in Higgs boson mass is {approx}115 GeV (150 GeV) at the Tevatron with 10 fb{sup -1} of data and {approx}110 GeV (130 GeV) at the 7 TeV LHC with 1 fb{sup -1}.

• OSTI ID: 21554459
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 24 Vol. 105; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCELERATORS
BOSONS
CALCULATION METHODS
CALORIMETERS
CERN LHC
CHARGED PARTICLES
CUTTING
CYCLIC ACCELERATORS
DECAY
DIMENSIONLESS NUMBERS
EFFICIENCY
ELEMENTARY PARTICLES
ENERGY RANGE
FERMILAB TEVATRON
FERMIONS
FIELD THEORIES
GEV RANGE
GEV RANGE 100-1000
HADRONS
HIGGS BOSONS
HIGGS MODEL
JETS
LEPTONS
MACHINING
MASS
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
MINUS-PLUS RATIO
MONTE CARLO METHOD
PARTICLE MODELS
POSTULATED PARTICLES
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
STORAGE RINGS
SYNCHROTRONS
TEV RANGE
TEV RANGE 01-10