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Search for heavy particles decaying into electron-positron pairs in p-pbar collisions

Collaboration, D; Abazov, VM; (2001) Search for heavy particles decaying into electron-positron pairs in p-pbar collisions. Physical Review Letters , 87 (6) , Article 061802. 10.1103/PhysRevLett.87.061802. Green open access

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Abstract

We present results of searches for technirho, techniomega, and Z' particles, using the decay channels technirho, techniomega, Z' -> e+e-. The search is based on 124.8 pb-1 of data collected by the D0 detector at the Fermilab Tevatron during 1992-1996. In the absence of a signal, we set 95% C.L. upper limits on the cross sections for the processes p pbar -> technirho, techniomega, Z' -> e+e- as a function of the mass of the decaying particle. For certain model parameters, we exclude the existence of degenerate technirho and techniomega states with masses below about 200 GeV. We exclude a Z' with mass below 670 GeV, assuming that it has the same couplings to fermions as the Z boson.

Type: Article
Title: Search for heavy particles decaying into electron-positron pairs in p-pbar collisions
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.87.061802
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.87.061802
Language: English
Additional information: © 2001 The American Physical Society 12 pages, 5 figures; fixed typo in axis labels of Figs 1 and 2
URI: https://discovery.ucl.ac.uk/id/eprint/1374207
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