Measurement of the Top Mass in the Multi-jet Final States at DØ

Details Measurement of the Top Mass in the Multi-jet Final States at DØ Measurement of the Top Mass in the Multi-jet Final States at DØ

Apr 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aps..apre14003c&link_type=abstract

American Physical Society, April Meeting, Jointly Sponsored with the High Energy Astrophysics Division (HEAD) of the American As

Astronomy and Astrophysics

Astrophysics

Scientific paper

We have measured the mass of the top in t \overlinet production in the multi-jet final states in p \overlinep collisions using the DØdetector at the center-of-momentum energy of 1.8 TeV with a data set corresponding to 110.8 pb-1. The data were collected by the DØexperiment during the 1992-1996 run of the Fermilab Tevatron. Each of the top quarks in these states decays predominantly to a bottom quark and a W boson, with the W's decaying predominantly into lighter quark-antiquark pairs. Although ~44% of all t \overlinet production involves such multi-jet final states, the background from QCD processes is an overwhelming factor of 1000 larger, making it difficult to extract evidence for a signal.

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