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Measurement of the tt? Production Cross Section in pp? Collisions at sqrt[s]=1.96??TeV Using Missing ET+jets Events with Secondary Vertex b Tagging

Lancaster, M; Waters, DCDFC; (2006) Measurement of the tt? Production Cross Section in pp? Collisions at sqrt[s]=1.96??TeV Using Missing ET+jets Events with Secondary Vertex b Tagging. Physical Review Letters , 96 (20) , Article 202002. 10.1103/PhysRevLett.96.202002. Green open access

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Abstract

We present a measurement of the tt̅ production cross section in pp̅ collisions at √s=1.96  TeV which uses events with an inclusive signature of significant missing transverse energy and jets. This is the first measurement which makes no explicit lepton identification requirements, so that sensitivity to W→τν decays is maintained. Heavy flavor jets from top quark decay are identified with a secondary vertex tagging algorithm. From 311  pb-1 of data collected by the Collider Detector at Fermilab, we measure a production cross section of 5.8±1.2(stat)-0.7+0.9(syst)  pb for a top quark mass of 178  GeV/c2, in agreement with previous determinations and standard model predictions.

Type: Article
Title: Measurement of the tt? Production Cross Section in pp? Collisions at sqrt[s]=1.96??TeV Using Missing ET+jets Events with Secondary Vertex b Tagging
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.96.202002
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.96.202002
Language: English
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery.ucl.ac.uk/id/eprint/132025
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