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Search for a heavy neutral gauge boson in the dielectron channel with 5.4 fb.sup.-1./sup. of ppbar collisions at root s=1.96 TeV
- 1.0367635 - FZÚ 2013 RIV NL eng J - Journal Article
Abazov, V. M. - Abbott, B. - Abolins, M. - Kupčo, Alexander - Lokajíček, Miloš … Total 437 authors
Search for a heavy neutral gauge boson in the dielectron channel with 5.4 fb-1 of ppbar collisions at root s=1.96 TeV.
Physics Letters. B. Roč. 695, 1-4 (2011), s. 88-94. ISSN 0370-2693. E-ISSN 1873-2445
R&D Projects: GA MŠMT LA08047; GA MŠMT LC527
Institutional research plan: CEZ:AV0Z10100502
Keywords : extensions of standard model * new gauge bosons * D0
Subject RIV: BF - Elementary Particles and High Energy Physics
Impact factor: 3.955, year: 2011
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 95 sigma(p (p) over bar -> Z´) x BR(Z´ -> ee) depending on the dielectron invariant mass. These cross section limits are used to determine lower mass limits for bosons in a variety of models. For the sequential standard model boson a lower mass limit of 1023 GeV is obtained.
Permanent Link: http://hdl.handle.net/11104/0202234
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