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Measurement of the top quark pair production cross section in p anti-p collisions using multijet final states
Baringer, Philip S. Abbott, B. Abolins, M. Abramov, V. Acharya, B. S. Adam, I. Adams, D. L. Adams, M. Ahn, S. Aihara, H.
Baringer, Philip S.
Abbott, B.
Abolins, M.
Abramov, V.
Acharya, B. S.
Adam, I.
Adams, D. L.
Adams, M.
Ahn, S.
Aihara, H.
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Abstract
We have studied tt-bar production using multijet final states in pp-bar collisions at a center-of-mass energy of 1.8 TeV, with an integrated luminosity of 110.3 pb(-1). Each of the top quarks with these final states decays exclusively to a bottom quark and a W boson, with the W bosons decaying into quark-antiquark pairs. The analysis has been optimized using neural networks to achieve the smallest expected fractional uncertainty on the tt-bar production cross section, and yields a cross section of 7.1±2.8 (stat)±1.5 (syst) pb, assuming a top quark mass of 172.1 GeV/c(2). Combining this result with previous DØ measurements, where one or both of the W bosons decay leptonically, gives a tt-bar production cross section of 5.9±1.2 (stat)±1.1 (syst)pb.
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This if the publisher's version, also available electronically from http://journals.aps.org/prd/abstract/10.1103/PhysRevD.60.012001.
Date
1999-05-26
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American Physical Society
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B. Abbott et al. ((DØ Collaboration)). (1999.) "Measurement of the top quark pair production cross section in pp-bar collisions using multijet final states." Physical Review D, 60(1):012001. http://dx.doi.org/10.1103/PhysRevD.60.012001