High Mass Higgs Studies Using gg->H and qq->qqH at the LHC

Details High Mass Higgs Studies Using gg->H and qq->qqH at the LHC High Mass Higgs Studies Using gg->H and qq->qqH at the LHC

Apr 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aps..aprs15003n&link_type=abstract

American Physical Society, April Meeting, Jointly Sponsored with the High Energy Astrophysics Division (HEAD) of the American As

Astronomy and Astrophysics

Astrophysics

Scientific paper

The possibilities to detect and measure various Higgs signals in the mass range of 300 to 600 GeV are investigated using a simplified description of the CMS experiment. We study not only the question how a signal could be obtained but also in a second step how some of the Higgs properties could be measured. Following that idea, our studies have concentrated on the possibilities to separate Higgs signals where the Higgs was produced through gluon-gluon fusion and through weak boson fusion process. Separating these two production processes is a way of determining Higgs couplings to vector bosons and top quarks. Significant signals from the gluon-gluon fusion process are obtained for H -> ZZ -> lepton-lepton-lepton-lepton, H -> ZZ -> lepton-lepton nu nu, and with a smaller signal to background ratio for H -> WW -> lepton nu lepton nu. Additional signals with relatively large statistics are obtained from the weak boson fusion process in the channels H -> WW -> lepton nu jet jet, H -> WW -> lepton nu lepton nu and H -> ZZ -> lepton lepton jet jet. Combining the different signatures, we expect that a Higgs with a mass between 300-600 GeV can be discovered already with a luminosity of about 2-3 fb-1 and that its cross sections in the two different production modes can be measured each with accuracies of about +-10

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