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Search for a heavy neutral gauge boson in the dielectron channel with 5.4 fb-1 of pp- collisions at s=1.96 TeV

  • V. M. Abazov
  • , B. Abbott
  • , M. Abolins
  • , B. S. Acharya
  • , M. Adams
  • , T. Adams
  • , G. D. Alexeev
  • , G. Alkhazov
  • , A. Alton
  • , G. Alverson
  • , G. A. Alves
  • , L. S. Ancu
  • , M. Aoki
  • , Y. Arnoud
  • , M. Arov
  • , A. Askew
  • , B. Åsman
  • , O. Atramentov
  • , C. Avila
  • , J. BackusMayes
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Wimpenny, M. Wobisch, D. R. Wood, T. R. Wyatt, Y. Xie, C. Xu, S. Yacoob, R. Yamada, W. C. Yang, T. Yasuda, Y. A. Yatsunenko, Z. Ye, H. Yin, K. Yip, H. D. Yoo, S. W. Youn, J. Yu, S. Zelitch, T. Zhao, B. Zhou, N. Zhou, J. Zhu, M. Zielinski, D. Zieminska, L. Zivkovic
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Research output: Contribution to journalArticlepeer-review

83 Scopus citations

Abstract

We report the results of a search for a heavy neutral gauge boson Z' decaying into the dielectron final state using data corresponding to an integrated luminosity of 5.4 fb-1 collected by the D0 experiment at the Fermilab Tevatron Collider. No significant excess above the standard model prediction is observed in the dielectron invariant-mass spectrum. We set 95σ(pp-→Z')×BR(Z'→ee) depending on the dielectron invariant mass. These cross section limits are used to determine lower mass limits for Z' bosons in a variety of models. For the sequential standard model Z' boson a lower mass limit of 1023 GeV is obtained.

Original languageEnglish
Pages (from-to)88-94
Number of pages7
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume695
Issue number1-4
DOIs
StatePublished - Jan 10 2011

Keywords

  • Extensions of standard model
  • New gauge bosons

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