68,112 research outputs found
Precise measurements of the W mass at the Tevatron and indirect constraints on the Higgs mass
I describe the latest D0 and CDF W boson mass measurements. The D0
measurement is performed with of integrated luminosity in the
electron decay channel with a data set of W candidates. The
value of the W boson mass measured by D0 is when
combined with the previously analyzed of integrated luminosity.
The CDF measurement uses of integrated luminosity in both
electron and muon decay channels with a total of W
candidates. The value of the W boson mass measured by CDF is . I report the combination of these two measurements with previous
Tevatron measurements and with the LEP measurements of the W boson mass. The
new world average is . I discuss the implications
of the new measurement to the indirect measurement of the Standard Model Higgs
boson mass.Comment: Moriond QCD 2012 (8 pages, 6 figures); v2: added report number; v3:
corrected typo in the number of W candidates used in the measuremen
A statistical technique for measuring synchronism between cortical regions in the EEG during rhythmic stimulation
The coherence function has been widely applied in quantifying the degree of synchronism between electroencephalogram (EEG) signals obtained from different brain regions. However, when applied to investigating synchronization resulting from rhythmic stimulation, misleading results can arise from the high correlation of background EEG activity. The authors, thus propose a modified measure, which emphasizes the synchronized stimulus responses and reduces the influence of the spontaneous EEG activity. Critical values for this estimator are derived and tested in Monte Carlo simulations. The effectiveness of the method is illustrated on data recorded from 12 young normal subjects during rhythmic photic stimulation
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