Search for heavy particles decaying into electron-positron pairs in pp collisions.

Journal article

We present results of searches for technirho (rho(T)), techniomega (omega(T)), and Z' particles, using the decay channels rho(T),omega(T),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 pp-->rho(T),omega(T),Z'-->e(+)e(-) as a function of the mass of the decaying particle. For certain model parameters, we exclude the existence of degenerate rho(T) and omega(T) 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.

Authors: Abazov, V; Abbott, B; Abdesselam, A; Abolins, M; Abramov, V

• Journal: Physical Review Letters
• Volume: 87
• Issue: 6
• Pages: 061802
• Publication date: 2001-08-01
• DOI: 10.1103/physrevlett.87.061802
• EISSN: 1079-7114
• ISSN: 0031-9007
• Language: English