Measurement of the t(t)over-bar production cross section using dilepton events in p(p)over-bar collisions

, D0 Collaboration (2011) Measurement of the t(t)over-bar production cross section using dilepton events in p(p)over-bar collisions. Physics Letters B, 704 (5). pp. 403-410. ISSN 0370-2693

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Abstract

We present a measurement of the a production cross section sigma((u) over bar) in p (p) over bar collisions at root s = 1.96 TeV using 5.4 fb(-1) of integrated luminosity collected with the D0 detector. We consider final states with at least two jets and two leptons (ee, e mu, mu mu), and events with one jet for the e mu final state as well. The measured cross section is sigma((u) over bar) = 7.36(-0.79)(+0.90)(stat + syst) pb. This result combined with the cross section measurement in the lepton + jets final state yields sigma((u) over bar) = 7.56(-0.56)(+0.63)(stat + syst) pb, which agrees with the standard model expectation. The relative precision of 8% of this measurement is comparable to the precision of the latest theoretical calculations.

Item Type:
Journal Article
Journal or Publication Title:
Physics Letters B
Uncontrolled Keywords:
/dk/atira/pure/researchoutput/libraryofcongress/qc
Subjects:
ID Code:
54522
Deposited By:
Deposited On:
24 May 2012 13:15
Refereed?:
Yes
Published?:
Published
Last Modified:
11 May 2021 01:12