Search for RS-gravitons at CDF

TL;DR

This paper reports a search for Randall-Sundrum gravitons decaying into diphotons, dielectrons, or dimuons using CDF II data, setting mass exclusion limits up to 1111 GeV/c^2 for certain model parameters.

Contribution

First search for RS-gravitons at CDF with detailed analysis and exclusion limits based on 5.7 fb^-1 of data.

Findings

No significant excess observed over standard model predictions.

RS-gravitons with mass below 1111 GeV/c^2 are excluded at 95% CL for k/M_Pl=0.1.

Constraints improve previous limits on RS-graviton mass.

Abstract

We present a search for Randall-Sundrum (RS) gravitons decaying to diphotons or dielectrons or dimuons, performed with the CDF II detector and using up to 5.7 fb-1 of integrated luminosity. The respective mass spectra are consistent with the ones expected by the standard model. For the RS-model parameter k/M_Pl=0.1, RS-gravitons with mass less than 1111 GeV/c^2 are excluded at 95% CL.