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Search for High-Mass e(+) e(-) Resonances in p (p)over-bar Collisions at root s=1.96 TeV

Aaltonen, T; Adelman, J; Akimoto, T; Albrow, MG; Alvarez Gonzalez, B; Amerio, S; Amidei, D; ... Zucchelli, S; + view all (2009) Search for High-Mass e(+) e(-) Resonances in p (p)over-bar Collisions at root s=1.96 TeV. PHYS REV LETT , 102 (3) , Article 031801. 10.1103/PhysRevLett.102.031801. Green open access

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Abstract

A search for high-mass resonances in the e(+)e(-) final state is presented based on 2: 5 fb(-1) of root s = 1.96 TeV p (p) over bar 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/c(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(2) is 0.6% ( equivalent to 2.5 sigma). We exclude the standard model coupling Z' and the Randall-Sundrum graviton for k/(M) over bar (P1) = 0.1 with masses below 963 and 848 GeV/c(2) at the 95% credibility level, respectively.

Type: Article
Title: Search for High-Mass e(+) e(-) Resonances in p (p)over-bar Collisions at root s=1.96 TeV
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.102.031801
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.102.031801
Language: English
Additional information: © 2009 The American Physical Society
Keywords: GAUGE BOSONS, E6, PHENOMENOLOGY, HIERARCHY, PHYSICS
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
URI: https://discovery.ucl.ac.uk/id/eprint/343038
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