Projections of Higgs Boson measurements with 30/fb at 8 TeV and 300/fb at 14 TeV

Abstract

We estimated the performance of the Higgs Boson measurement presented at ICHEP 2012 projected to 30/fb at 8 TeV and 300/fb at 14 TeV. The projections to 30/fb have been performed starting from the 8 TeV analyses, scaling them to a luminosity of 30/fb, with the exception of the analysis in the decay channel into b-quarks, where the analysis of the 7 TeV dataset has been chosen and the yields of all signal and background samples have been rescaled to resemble the cross sections at 8 TeV, in addition to the luminosity scale. This has been done as the 7 TeV analysis is closer to the analysis expected with 30/fb in this decay channel. In the decay channel to two W bosons a shape analysis has been used for the 8 TeV dataset as had been done for the analysis of the 7 TeV data, while for ICHEP the analysis of the 8 TeV data had still been performed as a cut and count analysis. In the decay channel into tau leptons only the main decay channels as presented at ICHEP 2012 have been used for the projections. These projections do not include the 5/fb of data, that have been collected at 7 TeV in 2011, nor do they take into account the limits that have been observed on the dataset that has been presented at ICHEP 2012. Systematic uncertainties have been used unchanged.

The projections to 300/fb at 14 TeV have been performed starting from the 7 TeV analyses, scaling them to a luminosity of 300/fb and scaling the yields of all signal and background samples to resemble the cross sections at 14 TeV, in addition to the luminosity scale. In the decay channel into tau leptons only the main decay channels as presented at ICHEP 2012 have been used for the projections. These projections do not include the 5/fb of data, that have been collected at 7 TeV in 2011, nor do they take into account the limits that have been observed on the dataset that has been presented at ICHEP 2012. Systematic uncertainties have been used unchanged.

ESG report from Projections

Figure	Links	Description
	Figure 1 pdf, png	Projection of the expected 95% CL exclusion limit in the decay channel into tau-leptons, as function of the tested Higgs Boson mass, on a dataset of 30/fb with 8 TeV. Also shown is the expected and observed limit on the dataset that has been presented at ICHEP 2012.
	Figure 2 pdf, png	Projection of the expected 95% CL exclusion limit in the decay channel into b-quarks, as function of the tested Higgs Boson mass, on a dataset of 30/fb with 8 TeV. Also shown is the expected and observed limit on the dataset that has been presented at ICHEP 2012.
	Figure 3 png	Projection of the expected significance for a SM Higgs boson at 125 GeV on a dataset of 30/fb with 8 TeV, in all decay channels that have been presented at ICHEP 2012 and for the combination of all decay channels. Also shown is the expected significance on the dataset that has been shown at ICHEP 2012.
	Figure 4 png	Projection of the expected uncertainty on the signal strength mu for a SM Higgs Boson at 125 GeV on a dataset of 30/fb with 8 TeV, in all decay channels that have been presented at ICHEP 2012 and for all decay channels combined. Also shown is the expected uncertainty on the signal strength mu on the dataset that has been shown at ICHEP 2012.
	Figure 5 png	Projection of the expected uncertainty ellipse for the coupling strengths of a SM Higgs Boson, separated into a common scaling factor for the coupling to vector bosons (Cv) and a common scaling factor for the coupling to fermions (Cf), on a dataset of 30/fb with 8 TeV. The solid line corresponds to the 68% CL uncertainty contour, the dashed line to the 95% CL uncertainty contour.
	Figure 6 png	Projection of the expected uncertainty on the signal strength mu for a SM Higgs Boson at 125 GeV on a dataset of 300/fb with 14 TeV, in all decay channels that have been presented at ICHEP 2012 and for the combination of all decay channels. Also shown is the expected uncertainty on the signal strength mu on the dataset that has been shown at ICHEP 2012 and a fit without theoretical uncertainties, illustrating that these uncertainties start to effect the accuracy of the measurement.
	Figure 7 png	Projection of the uncertainty for the coupling strength of a SM Higgs Boson at 125 GeV to photons, vector bosons, gluons, quarks and leptons, on a dataset of 300/fb with 14 TeV. Also shown is the expected uncertainty for the coupling strengths on the dataset that has been shown at ICHEP 2012 and a fit without theoretical uncertainties, illustrating that these uncertainties start to effect the accuracy of the measurement.
	Figure 8 png	Projection of the expected uncertainty ellipse for the coupling strengths of a SM Higgs Boson, separated into a common scaling factor for the coupling to vector bosons (Cv) and a common scaling factor for the coupling to fermions (Cf), on a dataset of 300/fb with 14 TeV. The red line corresponds to the 68% CL uncertainty contour, the blue line to the 95% CL uncertainty contour. The dashed lines correspond to the uncertainty contour setting all systematic uncertainties to zero.

-- MarkusKlute - 29-Aug-2012