We have over 12,000 students, from over 100 countries, within one of the safest campuses in the UK


97% of Lancaster students go into work or further study within six months of graduating

Home > Research > Publications & Outputs > Search for new particles in the two-jet decay c...
View graph of relations

« Back

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

Research output: Contribution to journalJournal article


<mark>Journal publication date</mark>2/06/2004
<mark>Journal</mark>Physical Review D
Number of pages5
<mark>Original language</mark>English


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