CDF Logo Search for New Dielectron Resonances and Randall-Sundrum Gravitons at the Collider Detector at Fermilab
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A search for new dielectron mass resonances using 5.7 fb-1 of data recorded by the CDF II detector is presented. No significant excess over the expected standard model prediction is observed. In this dataset, an event with the highest dielectron mass ever observed (960 GeV/c2) is recorded. The results are intepreted in the Randall-Sundrum (RS) model. Combined with the 5.4 fb-1 diphoton analysis, the RS-graviton mass limit for the coupling k/MPl=0.1 is 1058 GeV/c2 making it the strongest limit to date.


Blessed Plots:

Dielectron mass spectrum

EPS or GIF
Dielectron mass specturm 200-600 GeV/c^2

EPS or GIF
p-value

EPS or GIF
Event display (Mee = 960 GeV/c2)

EPS or GIF
Dielectron RS-graviton limits

EPS or GIF
Combined dielectron+diphoton RS-graviton limits

EPS or GIF
Improvement after the inclusion of dielectrons

EPS or GIF
Comparison with previous RS-graviton limits

EPS or GIF

Blessed Tables:

Table of dielectron yields

PDF or GIF
Table of systematics

PDF or GIF
RS-graviton limits for the combined dielectron+diphoton analysis

PDF or GIF


Last update June 16, 2011 by John Strologas

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