Search for Heavy Particles Decaying into Electron-Positron Pairs in pp Collisions

D0 Collaboration

Research output: Contribution to journalArticle

Abstract

We present results of searches for technirho (ρT), techniomega (ωT), and Z’ particles, using the decay channels ρT,ωT, 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-→ρT,ωT, Z→e+e- as a function of the mass of the decaying particle. For certain model parameters, we exclude the existence of degenerate ρT and ωT 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.

Original languageEnglish
JournalPhysical Review Letters
Volume87
Issue number6
DOIs
Publication statusPublished - 2001 Jul 23
Externally publishedYes

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electron-positron pairs
collisions
bosons
fermions
detectors
cross sections
decay

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Search for Heavy Particles Decaying into Electron-Positron Pairs in pp Collisions. / D0 Collaboration.

In: Physical Review Letters, Vol. 87, No. 6, 23.07.2001.

Research output: Contribution to journalArticle

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abstract = "We present results of searches for technirho (ρT), techniomega (ωT), and Z’ particles, using the decay channels ρT,ωT, 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-→ρT,ωT, Z→e+e- as a function of the mass of the decaying particle. For certain model parameters, we exclude the existence of degenerate ρT and ωT 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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AU - D0 Collaboration

AU - Abazov, V. M.

AU - Abbott, B.

AU - Abdesselam, A.

AU - Abolins, M.

AU - Abramov, V.

AU - Acharya, B. S.

AU - Adams, D. L.

AU - Adams, M.

AU - Ahmed, S. N.

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AU - Alves, G. A.

AU - Amos, N.

AU - Anderson, E. W.

AU - Baarmand, M. M.

AU - Babintsev, V. V.

AU - Babukhadia, L.

AU - Bacon, T. C.

AU - Baden, A.

AU - Baldin, B.

AU - Balm, P. W.

AU - Banerjee, S.

AU - Barberis, E.

AU - Baringer, P.

AU - Barreto, J.

AU - Bartlett, J. F.

AU - Bassler, U.

AU - Bauer, D.

AU - Bean, A.

AU - Begel, M.

AU - Belyaev, A.

AU - Beri, S. B.

AU - Bernardi, G.

AU - Bertram, I.

AU - Besson, A.

AU - Beuselinck, R.

AU - Bezzubov, V. A.

AU - Bhat, P. C.

AU - Bhatnagar, V.

AU - Bhattacharjee, M.

AU - Blazey, G.

AU - Blessing, S.

AU - Boehnlein, A.

AU - Bojko, N. I.

AU - Borcherding, F.

AU - Bos, K.

AU - Brandt, A.

AU - Breedon, R.

AU - Briskin, G.

AU - Brock, R.

AU - Choi, Suyong

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AB - We present results of searches for technirho (ρT), techniomega (ωT), and Z’ particles, using the decay channels ρT,ωT, 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-→ρT,ωT, Z→e+e- as a function of the mass of the decaying particle. For certain model parameters, we exclude the existence of degenerate ρT and ωT 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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