Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8192594 | Physics Letters B | 2011 | 7 Pages |
Abstract
We report the results of a search for a heavy neutral gauge boson Zâ² decaying into the dielectron final state using data corresponding to an integrated luminosity of 5.4 fbâ1 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 95Ï(pp¯âZâ²)ÃBR(Zâ²âee) depending on the dielectron invariant mass. These cross section limits are used to determine lower mass limits for Zâ² bosons in a variety of models. For the sequential standard model Zâ² boson a lower mass limit of 1023 GeV is obtained.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
D0 Collaboration D0 Collaboration, 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. Ã
sman, L. Zivkovic,