We have searched for heavy neutral gauge bosons (Z') in dielectron and dimuon decay modes using 110 pb(-1) of (p) over bar p collisions at root s = 1.8 TeV collected with the Collider Detector at Fermilab. We. present a limit on the production cross section times branching ratio of a Z' boson decaying into dileptons as a function of Z' mass. For mass M-Z' > 600 GeV/c(2), the upper limit is 40 fb at 95% confidence level. We set the lower mass limits of 690, 590, 620, 595, 565, 630, and 600 GeV/c(2) forZ(SM)(l), Z(psi), Z(eta), Z(X), Z(l), Z(LR), and Z(ALRM), respectively. RI Lancaster, Mark/C-1693-2008; Vucinic, Dejan/C-2406-2008; Chiarelli, Giorgio/E-8953-2012; Azzi, Patrizia/H-5404-2012
Digital Object Identifier (DOI): | http://dx.doi.org/10.1103/PhysRevLett.79.2192 |
Codice identificativo ISI: | WOS:A1997XW93900009 |
Codice identificativo Scopus: | 2-s2.0-4243722746 |
Handle: | http://hdl.handle.net/11695/6652 |
Abstract: | We have searched for heavy neutral gauge bosons (Z') in dielectron and dimuon decay modes using 110 pb(-1) of (p) over bar p collisions at root s = 1.8 TeV collected with the Collider Detector at Fermilab. We. present a limit on the production cross section times branching ratio of a Z' boson decaying into dileptons as a function of Z' mass. For mass M-Z' > 600 GeV/c(2), the upper limit is 40 fb at 95% confidence level. We set the lower mass limits of 690, 590, 620, 595, 565, 630, and 600 GeV/c(2) forZ(SM)(l), Z(psi), Z(eta), Z(X), Z(l), Z(LR), and Z(ALRM), respectively. RI Lancaster, Mark/C-1693-2008; Vucinic, Dejan/C-2406-2008; Chiarelli, Giorgio/E-8953-2012; Azzi, Patrizia/H-5404-2012 |
Titolo: | Search for new gauge bosons decaying into dileptons in (p)over-bar-p collisions at root s=1.8 TeV |
Autori: | |
Appare nelle tipologie: | 1.1 Articolo in rivista |