Single-forward-jet tagging and central-jet vetoing to identify the leptonic WW decay mode of a heavy Higgs boson

Journal Article · Fri Nov 01 04:00:00 EST 1991 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.44.2701· OSTI ID:6386741

Barger, V; Cheung, K ^[1]; Han, T ^[2]; Zeppenfeld, D ^[1]

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1. Department of Physics, University of Wisconsin, Madison, Wisconsin (USA)
2. Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, Illinois (USA)

We study the extraction of the heavy-Higgs-boson signal {ital H}{r arrow}{ital W}{sup +}{ital W{minus}}{r arrow}{ital {bar l}}{nu},{ital l}{bar {nu}}({ital l}={ital e} or {mu}) from the standard-model background at hadron supercolliders. By tagging a single forward jet with energy {ital E}{sub {ital j}}{gt}3 TeV and pseudorapidity 3{lt}{vert bar}{eta}{sub {ital j}}{vert bar}{lt}5 and by vetoing central jets of transverse momenta {ital p}{sub {ital T}{ital j}}{gt}60 GeV in the pseudorapidity range 0{lt}{vert bar}{eta}{sub {ital j}}{vert bar}{lt}3, the QCD {ital WWj} and {ital t{bar t}j}{r arrow}{ital WWb{bar b}j} backgrounds are suppressed. For {ital m}{sub {ital H}}=1 TeV there are about 46 signal events from electroweak-vector-boson scattering (of which 36 events are of Higgs-boson origin) at the Superconducting Super Collider (SSC) for an integrated luminosity of 10 fb{sup {minus}1} and 10 other events from the {ital WWj} and {ital t{bar t}j} backgrounds for {ital m}{sub {ital t}}=140 GeV. The experimental separation of the vector-boson-scattering subprocess is thereby possible. At the CERN Large Hadron Collider, with an {ital E}{sub {ital j}}{gt}2 TeV jet energy cut, all cross sections are about a factor of 10 below the SSC values.

• DOE Contract Number: AC02-76ER00881
• OSTI ID: 6386741
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 44:9; ISSN PRVDA; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662230 -- Quantum Chromodynamics-- (1992-)
662380* -- Decays of Intermediate Bosons-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
CROSS SECTIONS
DECAY
ELEMENTARY PARTICLES
FIELD THEORIES
HIGGS BOSONS
INTERMEDIATE BOSONS
INTERMEDIATE VECTOR BOSONS
JET MODEL
MATHEMATICAL MODELS
PARTICLE MODELS
PARTICLE PROPERTIES
PARTICLE RAPIDITY
POSTULATED PARTICLES
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
STANDARD MODEL
STORAGE RINGS
SUPERCONDUCTING SUPER COLLIDER
TENSORS
UNIFIED GAUGE MODELS
VECTORS
W MINUS BOSONS