Measurement of the $t\bar{t}$ production cross section using dilepton events in $p\bar{p}$ collisions
(2011) Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics — Vol. 704, p. 403 (2011)
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- Abstract
- We present a measurement of the tt¯ production cross section σtt¯ in pp¯ collisions at 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 , eμ , μμ ), and events with one jet for the eμ final state as well. The measured cross section is σtt¯=7.36−0.79+0.90(stat+syst) pb . This result combined with the cross section measurement in the lepton + jets final state yields σtt¯=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.
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Tanasijczuk, A. J., D0, & et al. (2011). Measurement of the $t\bar{t}$ production cross section using dilepton events in $p\bar{p}$ collisions. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 704, 403. https://doi.org/10.1016/j.physletb.2011.09.046 (Original work published 2011)