How to find a Higgs boson with a mass between 155 and 180 GeV at the CERN LHC

Journal Article · Wed Jan 01 04:00:00 EST 1997 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.55.167· OSTI ID:475310

Dittmar, M ^[1]; Dreiner, H ^[2]

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1. Institute for Particle Physics (IPP), ETH Zuerich, CH-8093 Zuerich (Switzerland)
2. Rutherford Laboratory, Chilton, Didcot, OX11 0QX (United Kingdom)

We reconsider the signature of events with two charged leptons and missing energy as a signal for the detection of the standard model Higgs boson in the mass region M(Higgs)=155{endash}180 GeV. It is shown that a few simple experimental criteria allow us to distinguish events originating from the Higgs boson decaying to H{r_arrow}W{sup +}W{sup {minus}} from the nonresonant production of W{sup +}W{sup {minus}}X at the CERN LHC. With this set of cuts, signal to background ratios of about one to one are obtained, allowing a 5{endash}10{sigma} detection with about 5 fb{sup {minus}1} of luminosity. This corresponds to less than one year of running at the initial lower luminosity L=10{sup 33} cm{sup {minus}2}s{sup {minus}1}. This is significantly better than for the hitherto considered Higgs boson detection mode H{r_arrow}Z{sup 0}Z{sup 0{asterisk}}{r_arrow}2scr(l){sup +}2scr(l){sup {minus}}, where in this mass range about 100 fb{sup {minus}1} of integrated luminosity are required for a 5{sigma} signal. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 475310
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 1 Vol. 55; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CERN LHC
HIGGS BOSONS
LEPTONS
LUMINOSITY
MASS
PARTICLE IDENTIFICATION
STANDARD MODEL