# Search for High-Mass \boldmath$e^+e^-$ Resonances in \boldmath$p\bar{p}$ Collisions at \boldmath$\sqrt{s}=$1.96 TeV

Abstract : A search for high-mass resonances in the $e^+e^-$ final state is presented based on $\sqrt{s}=$1.96 TeV $p\bar{p}$ collision data from the CDF II detector at the Fermilab Tevatron from an integrated luminosity of 2.5 fb$^{-1}$. The largest excess over the standard model prediction is at an $e^+e^-$ invariant mass of 240 GeV/$c^2$. The probability of observing such an excess arising from fluctuations in the standard model anywhere in the mass range of 150--1,000 GeV/$c^2$ is 0.6% (equivalent to 2.5 $\sigma$). We set Bayesian upper limits on $\sigma(p\bar{p}\to X)\cdot\mathcal{B}(X\to e^+e^-)$ at the 95% credibility level, where $X$ is a spin 1 or spin 2 particle, and we exclude the standard model coupling $Z'$ and the Randall-Sundrum graviton for $k/\overline{M}_{Pl}=0.1$ with masses below 963 and 848 GeV/$c^2$, respectively.
Document type :
Preprints, Working Papers, ...

http://hal.in2p3.fr/in2p3-00330169
Contributor : Swarna Bassava <>
Submitted on : Tuesday, October 14, 2008 - 9:59:11 AM
Last modification on : Wednesday, October 14, 2020 - 4:25:20 AM

### Identifiers

• HAL Id : in2p3-00330169, version 1
• ARXIV : 0810.2059

### Citation

T. Aaltonen, J. Adelman, T. Akimoto, M.G. Albrow, B. Alvarez Gonzalez, et al.. Search for High-Mass \boldmath$e^+e^-$ Resonances in \boldmath$p\bar{p}$ Collisions at \boldmath$\sqrt{s}=$1.96 TeV. 2008. ⟨in2p3-00330169⟩

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