Search for New Dielectron Resonances and Randall-Sundrum Gravitons at the Collider Detector at Fermilab

Search for New Dielectron Resonances and Randall-Sundrum Gravitons at the Collider Detector at Fermilab

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/M_Pl=0.1 is 1058 GeV/c² making it the strongest limit to date.

Authors: M. Gold, J. Strologas, M. Vogel, R. Culbertson, Tingjun Yang
Blessed: February 10, 2011
Data: Run II, 5.7 fb^-1
Public Note: PDF
Preprint: arXiv:1103.4650

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 (M_ee = 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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