Document Type
Article
Publication Date
1-20-2009
Abstract
A search for high-mass resonances in the e+e- final state is presented based on 2.5fb-1 of s=1.96TeV pp̄ collision data from the CDF II detector at the Fermilab Tevatron. The largest excess over the standard model prediction is at an e+e- invariant mass of 240GeV/c2. The probability of observing such an excess arising from fluctuations in the standard model anywhere in the mass range of 150-1000GeV/c2 is 0.6% (equivalent to 2.5σ). We exclude the standard model coupling Z′ and the Randall-Sundrum graviton for k/M̄Pl=0.1 with masses below 963 and 848GeV/c2 at the 95% credibility level, respectively. © 2009 The American Physical Society.
Publication Source (Journal or Book title)
Physical Review Letters
Recommended Citation
Aaltonen, T., Adelman, J., Akimoto, T., Albrow, M., Álvarez González, B., Amerio, S., Amidei, D., Anastassov, A., Annovi, A., Antos, J., Apollinari, G., Apresyan, A., Arisawa, T., Artikov, A., Ashmanskas, W., Attal, A., Aurisano, A., Azfar, F., Azzurri, P., Badgett, W., Barbaro-Galtieri, A., Barnes, V., Barnett, B., Bartsch, V., Bauer, G., Beauchemin, P., Bedeschi, F., & Beecher, D. (2009). Search for high-mass e+e- resonances in pp̄ collisions at s=1.96TeV. Physical Review Letters, 102 (3) https://doi.org/10.1103/PhysRevLett.102.031801