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

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

2001-02-24

arxiv.org/abs/hep-ex/0102048v2

Phys.Rev.Lett.87:061802,2001

Physics

High Energy Physics

High Energy Physics - Experiment

12 pages, 5 figures; fixed typo in axis labels of Figs 1 and 2

Scientific paper

10.1103/PhysRevLett.87.061802

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.

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