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

Research output: Contribution to journalJournal article

Published

Journal publication date2/06/2004
JournalPhysical Review D
Journal number11
Volume69
Number of pages5
Pages11101-11105
Original languageEnglish

Abstract

We present the results of a search for the production of new particles decaying into two jets in p̅ 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/c2, the most restrictive limit to date. We also exclude standard-model-like W′ (Z′) bosons with masses between 300 and 800 GeV/c2 (400 and 640 GeV/c2). A W′ boson with mass <786 GeV/c2 has been excluded by previous measurements, and our lower limit is therefore the most stringent to date.

Bibliographic note

Bertram developed all the analysis techniques and he wrote the paper after sharing the analysis with a US student. The world's best limits were set on the production of many particle types, constraining new physics models. RAE_import_type : Journal article RAE_uoa_type : Physics