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Search for new physics in high-mass electron-positron events in p(p)over-bar collisions at root s p=1.96 TeV

Aaltonen, T; Abulencia, A; Adelman, J; Affolder, T; Akimoto, T; Albrow, MG; Amerio, S; ... Zucchelli, S; + view all (2007) Search for new physics in high-mass electron-positron events in p(p)over-bar collisions at root s p=1.96 TeV. PHYS REV LETT , 99 (17) , Article 171802. 10.1103/PhysRevLett.99.171802. Green open access

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Abstract

We report the results of a search for a narrow resonance in electron-positron events in the invariant mass range of 150-950 GeV/c(2) using 1: 3 fb(-1) of p (p) over bar collision data at root s = 1.96 TeV collected by the CDF II detector at Fermilab. No significant evidence of such a resonance is observed and we interpret the results to exclude the standard-model-like Z' with a mass below 923 GeV/c(2) and the Randall-Sundrum graviton with a mass below 807 GeV/c(2) for k root M-p1 = 0: 1, both at the 95% confidence level. Combining with diphoton data excludes the Randall-Sundrum graviton for masses below 889 GeV/c(2) for k root M-p1 = 0.1.

Type: Article
Title: Search for new physics in high-mass electron-positron events in p(p)over-bar collisions at root s p=1.96 TeV
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.99.171802
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.99.171802
Language: English
Additional information: © 2007 The American Physical Society
Keywords: PHENOMENOLOGY, HIERARCHY
UCL classification: 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
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery.ucl.ac.uk/id/eprint/136414
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