Search for High-Mass e{sup +}e{sup -} Resonances in pp Collisions at {radical}(s)=1.96 TeV

Journal Article · Fri Jan 23 00:00:00 EST 2009 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.102.031801· OSTI ID:21180133

Aaltonen, T; Maki, T; Mehtala, P; Orava, R; Remortel, N van ^[1]; Adelman, J; Brubaker, E; Fedorko, W T; Grosso-Pilcher, C; Kim, Y K; Krop, D; Kwang, S; Lee, H S; Paramonov, A A; Schmidt, M A; Shiraishi, S; Shochet, M; Wilbur, S; Wolfe, C; Yang, U K ^[2]

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1. Division of High Energy Physics, Department of Physics, University of Helsinki and Helsinki Institute of Physics, FIN-00014, Helsinki (Finland)
2. Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637 (United States)

A search for high-mass resonances in the e{sup +}e{sup -} final state is presented based on 2.5 fb{sup -1} of {radical}(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{sup +}e{sup -} invariant mass of 240 GeV/c{sup 2}. The probability of observing such an excess arising from fluctuations in the standard model anywhere in the mass range of 150-1000 GeV/c{sup 2} is 0.6% (equivalent to 2.5{sigma}). We exclude the standard model coupling Z{sup '} and the Randall-Sundrum graviton for k/M{sub Pl}=0.1 with masses below 963 and 848 GeV/c{sup 2} at the 95% credibility level, respectively.

• OSTI ID: 21180133
• Journal Information: Physical Review Letters, Vol. 102, Issue 3; Other Information: DOI: 10.1103/PhysRevLett.102.031801; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANNIHILATION
ELECTRON-POSITRON INTERACTIONS
ELECTRONS
FERMILAB COLLIDER DETECTOR
FERMILAB TEVATRON
GEV RANGE 100-1000
MASS
POSITRONS
PROBABILITY
PROTON-PROTON INTERACTIONS
STANDARD MODEL
TEV RANGE 01-10