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Search for High-Mass e+e Resonances in pp Collisions at s√=1.96  TeV

CollaborationWith : Garcia Navarro, Jose Enrique / Vallecorsa, Sofia / Wu, Xin
Published in Physical Review Letters. 2009, vol. 102, no. 03, p. 031801
Abstract A search for high-mass resonances in the e+e− final state is presented based on 2.5  fb−1 of s√=1.96  TeV pp 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 240  GeV/c2. The probability of observing such an excess arising from fluctuations in the standard model anywhere in the mass range of 150–1000  GeV/c2 is 0.6% (equivalent to 2.5σ). We exclude the standard model coupling Z′ and the Randall-Sundrum graviton for k/MPl=0.1 with masses below 963 and 848  GeV/c2 at the 95% credibility level, respectively.
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CDF COLLABORATION. Search for High-Mass e+e Resonances in pp Collisions at s√=1.96  TeV. In: Physical Review Letters, 2009, vol. 102, n° 03, p. 031801. https://archive-ouverte.unige.ch/unige:38542

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Deposited on : 2014-07-08

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