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Phys Rev Lett. 2010 Apr 23;104(16):162002. Epub 2010 Apr 22.

Dominant QCD backgrounds in Higgs boson analyses at the LHC: a study of pp --> tt + 2 jets at next-to-leading order.

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1
Institute of Nuclear Physics, NCSR Demokritos, GR-15310 Athens, Greece.

Abstract

We report the results of a next-to-leading order simulation of top quark pair production in association with two jets. With our inclusive cuts, we show that the corrections with respect to leading order are negative and small, reaching 11%. The error obtained by scale variation is of the same order. Additionally, we reproduce the result of a previous study of top quark pair production in association with a single jet.

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