Search for new particles in the two-jet decay channel with the DØ detector

Publisher Website

2 June 2004

journal article
research article
Published by American Physical Society (APS) in Physical Review D

Vol. 69 (11) , 111101
https://doi.org/10.1103/physrevd.69.111101

Abstract

We present the results of a search for the production of new particles decaying into two jets in

\bar{p} p

collisions at

\sqrt{s} = 1.8 TeV,

using the DØ 1992–1995 data set corresponding to

{109 pb}^{- 1} .

We exclude at the 95% confidence level the production of excited quarks

{(q}^{*})

with masses below 775 GeV/

c^{2},

the most restrictive limit to date. We also exclude standard-model-like

W^{'}

{(Z}^{'})

bosons with masses between 300 and 800 GeV/

c^{2}

(400 and 640 GeV/

c^{2}) .

A

W^{'}

boson with mass

< 786 GeV {/ c}^{2}

has been excluded by previous measurements, and our lower limit is therefore the most stringent to date.

Keywords

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Version 1, 2003-08-13, ArXiv

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