Search for a New Charged Heavy Vector Boson, W' decaying to an electron-neutrino pair |
Acceptance for W' as a function of the mass : | |
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Acceptance times event selection efficiency as a function of W' boson mass calculated using Monte Carlo. The uncertainties are statistical only. EPS or GIF, | |
Expected transverse mass distribution : | |
The expected M_T distributions in 205 pb^-1 of data for the background (black) and the signal of W' -> e nu with M_{W'} = 400 GeV/c2 (red), 600 GeV/c2 (green), and 800 GeV/c2 (blue). EPS or GIF, | |
Transverse Mass Fitting : | |
The transverse mass distributions of W/W' -> e nu candidate events in 205 pb^-1 of data and the Standard Model backgrounds. EPS or GIF, | |
Expected and Observed Number of Events : | |
The search results of the binned likelihood fitting method. Shown are expected numbers of SM background events in each M_T bin above 200 GeV/c2. PS or GIF, | |
The 95% CL limits on cross section times braching fraction : | |
The 95% CL limits on the cross section times braching fraction for (W' -> enu) assuming the Standard Model strength couplings is shown. the intercept of the lower cross section curve and the limit on the cross section curve yields M_{W'} > 788 GeV/c2 at 95% CL. Without the theoretical uncertainty on cross section (green band), the mass limit is M_{W'} > 800 GeV/c2. EPS or GIF, | |
The 95% CL limits on Standard Model strength couplings : | |
The 95% CL limits on Standard Model strength couplings is shown. Assuming the Standard Model strength couplings, The intercept of the two curves yields M_{W'} > 800 GeV/c2 at 95% CL. EPS or GIF, |