The LHC experiments have analyzed the 7 and 8 TeV LHC data in the main Higgs production and decay modes. Current analyses show a near degeneracy in the relative sign of the Htt¯and HWW couplings. In order to remove this degeneracy and strongly constrain these couplings we have consider single top production in association with a Higgs in the t-channel. This process can be very sensitive to both the magnitude and the sign of a non-standard top-Higgs coupling. We show that at 8 TeV center of mass energy and 50 fb−1 integrated luminosity the combination of diphoton and multi-lepton signatures, originating from different combinations of the top and Higgs decay modes, can be a potential probe to constrain a large portion of the negative top-Higgs coupling space presently allowed by the ATLAS and CMS global fits.
Direct constraints on the top-Higgs coupling from the 8 TeV LHC data
GABRIELLI, Emidio;
2013-01-01
Abstract
The LHC experiments have analyzed the 7 and 8 TeV LHC data in the main Higgs production and decay modes. Current analyses show a near degeneracy in the relative sign of the Htt¯and HWW couplings. In order to remove this degeneracy and strongly constrain these couplings we have consider single top production in association with a Higgs in the t-channel. This process can be very sensitive to both the magnitude and the sign of a non-standard top-Higgs coupling. We show that at 8 TeV center of mass energy and 50 fb−1 integrated luminosity the combination of diphoton and multi-lepton signatures, originating from different combinations of the top and Higgs decay modes, can be a potential probe to constrain a large portion of the negative top-Higgs coupling space presently allowed by the ATLAS and CMS global fits.Pubblicazioni consigliate
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