Measurement of the ttbar cross section using high-multiplicity jet events

D0 COLLABORATION, ..., R.PIEGAIA,

PHYSICAL REVIEW D - PARTICLE AND FILDS

American Physical Society

Año: 2010 vol. 82 p. 32002 - 32012

0556-2821

We present a measurement of the tt̅ cross section using high-multiplicity jet events produced in pp̅ collisions at √s=1.96  TeV. These data were recorded at the Fermilab Tevatron Collider with the D0 detector. Events with at least six jets, two of them identified as b jets, were selected from a 1  fb-1 data set. The measured cross section, assuming a top quark mass of 175  GeV/c2, is 6.9±2.0  pb, in agreement with theoretical expectations.