# Search for New Physics in High Mass Electron-Positron Events in $p\bar{p}$ Collisions at $\sqrt{s}$ = 1.96 TeV

Abstract : We report the results of a search for a narrow resonance in electron-positron events in the invariant mass range of 150-950 GeV/c^2 using 1.3 fb^-1 of ppbar collision data at sqrt(s) = 1.96 TeV collected by the CDF II detector at Fermilab. No significant evidence of such a resonance is observed and we interpret the results to exclude the standard model-like Z' with a mass below 923 GeV/c^2 and the Randall-Sundrum graviton with a mass below 807 GeV/c^2 for k/M_pl=0.1, both at the 95% confidence level. Combining with di-photon data excludes the Randall-Sundrum graviton for masses below 889 GeV/c^2 for k/M_pl=0.1.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00182499
Contributor : Dominique Girod Connect in order to contact the contributor
Submitted on : Friday, October 26, 2007 - 11:26:52 AM
Last modification on : Wednesday, September 15, 2021 - 2:56:02 PM

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### Citation

T. Aaltonen, A. Abulencia, J. Adelman, T. Affolder, T. Akimoto, et al.. Search for New Physics in High Mass Electron-Positron Events in $p\bar{p}$ Collisions at $\sqrt{s}$ = 1.96 TeV. Physical Review Letters, American Physical Society, 2007, 99, pp.171802. ⟨10.1103/PhysRevLett.99.171802⟩. ⟨in2p3-00182499⟩

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