Original scientific paper
Study of H → ZZ → 4ℓ ± with a full geant simulation of CMS detector
Deana Bomeštar
; Institute Ruđer Bošković, Zagreb, Croatia
Daniel Denegri
; DAPNIA/ SPP,CEN Saclay, France
Ritva Kinnunen
; SEFT, University of Helsinki, Finland
Alexandre Nikitenko
; ITEP, Moscow, Russia
Abstract
We study the detection of H → ZZ → 4ℓ ± in the CMS detector at the nominal LHC energy √ s = 14 TeV and the possibility for an early detection at a reduced energy √ s = 10 TeV. A systematic study of the multi–lepton mass resolution is performed, including effects of internal and external radiation through detailed GEANT simulations. At √ s = 14 TeV, an integrated luminosity of 104 pb−1 allows exploration at a ≥ 5σ significance level a mass range from mH ≈ 2mZ up to mH ≈ 400 GeV. For 105 pb−1 , the mass reach is about 650 GeV. At √ s = 10 TeV, an integrated luminosity of 104 pb−1 does not provide a 5σ significance level for any value of Higgs mass, and 2 × 104 pb−1 alows one to explore a mass range from mH ≈ 2mZ to ≈ 350 GeV at ≥ 5σ level.
Keywords
Hrčak ID:
303476
URI
Publication date:
3.9.1995.
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