Abazov, VM;
Abbott, B;
Abdesselam, A;
Abolins, M;
Abramov, V;
Acharya, BS;
Adams, DL;
... DO Collaboration, .; + view all
(2004)
Search for narrow t(t)over-bar resonances in p(p)over-bar collisions at root s=1.8 TeV.
PHYS REV LETT
, 92
(22)
, Article 221801. 10.1103/PhysRevLett.92.221801.
![[thumbnail of 1375203.pdf]](https://discovery.ucl.ac.uk/style/images/fileicons/application_pdf.png) Preview |
PDF
1375203.pdf Download (196kB) |
Abstract
A search for narrow resonances that decay into t (t) over bar pairs has been performed using 130 pb(-1) of data in the lepton + jets channel collected by the DO detector in p (p) over bar collisions at roots=1.8 TeV. There is no significant deviation observed from the standard-model predictions at a top-quark mass of 175 GeV/c(2). We therefore present upper limits at the 95% confidence level on the product of the production cross section and branching fraction to t (t) over bar for narrow resonances as a function of the resonance mass M-X. These limits are used to exclude the existence of a leptophobic top-color particle with mass M-X<560 GeV/c(2), using a theoretical cross section for a width Gamma(X)=0.012M(X).
| Type: | Article |
|---|---|
| Title: | Search for narrow t(t)over-bar resonances in p(p)over-bar collisions at root s=1.8 TeV |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.92.221801 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.92.221801 |
| Language: | English |
| Additional information: | © 2004 The American Physical Society |
| Keywords: | PARTON DISTRIBUTIONS, SYMMETRY-BREAKING, PHYSICS |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1375203 |
Archive Staff Only
 |
View Item |
