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Measurement of the inclusive t(t)over-bar production cross section in p(p)over-bar collisions at root s=1.96 TeV and determination of the top quark pole mass
Joint Nucl Res Inst, Dubna, Russia..
Univ Oklahoma, Norman, OK 73019 USA..
Tata Inst Fundamental Res, Bombay, Maharashtra, India..
Univ Illinois, Chicago, IL 60607 USA..
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2016 (English)In: PHYSICAL REVIEW D, ISSN 2470-0010, Vol. 94, no 9, 092004Article in journal (Refereed) Published
Abstract [en]

The inclusive cross section of top quark-antiquark pairs produced in p (p) over bar collisions at root s = 1.96 TeV is measured in the lepton + jets and dilepton decay channels. The data sample corresponds to 9.7 fb(-1) of integrated luminosity recorded with the D0 detector during Run II of the Fermilab Tevatron Collider. Employing multivariate analysis techniques we measure the cross section in the two decay channels and we perform a combined cross section measurement. For a top quark mass of 172.5 GeV, we measure a combined inclusive top quark-antiquark pair production cross section of sigma(t<(t)over bar) = 7.26 +/- 0.13(stat)(-0.50)(+0.57) (syst) pb which is consistent with standard model predictions. We also perform a likelihood fit to the measured and predicted top quark mass dependence of the inclusive cross section, which yields a measurement of the pole mass of the top quark. The extracted value is m(t) = 172.8 +/- 1.1(theo)(-3.1)(+3.3) (exp) GeV.

Place, publisher, year, edition, pages
2016. Vol. 94, no 9, 092004
National Category
Subatomic Physics
URN: urn:nbn:se:uu:diva-311503DOI: 10.1103/PhysRevD.94.092004ISI: 000388526300002OAI: oai:DiVA.org:uu-311503DiVA: diva2:1060833
German Research Foundation (DFG)Swedish Research Council
Available from: 2016-12-30 Created: 2016-12-28 Last updated: 2016-12-30Bibliographically approved

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Buszello, Claus P.
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