Combination of measurements of the top-quark pair production cross section from the Tevatron Collider

Aaltonen, T. and Abazov, V. M. and Abbott, B. and Acharya, B. S. and Adams, M. and Adams, T. and Agnew, J. P. and Alexeev, G. D. and Alkhazov, G. and Alton, A. and Amerio, S. and Amidei, D. and Anastassov, A. and Annovi, A. and Antos, J. and Apollinari, G. and Appel, J. A. and Arisawa, T. and Artikov, A. and Asaadi, J. and Ashmanskas, W. and Askew, A. and Atkins, S. and Auerbach, B. and Augsten, K. and Aurisano, A. and Avila, C. and Azfar, F. and Badaud, F. and Badgett, W. and Nagai, Yoshikazu (2014) Combination of measurements of the top-quark pair production cross section from the Tevatron Collider. PHYSICAL REVIEW D, 89 (7). ISSN 2470-0010

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Abstract

We combine six measurements of the inclusive top-quark pair (tt¯) production cross section (σtt¯) from data collected with the CDF and D0 detectors at the Fermilab Tevatron with proton anti-proton collisions at √ s = 1.96 TeV. The data correspond to integrated luminosities of up to 8.8 fb−1 . We obtain a value of σtt¯ = 7.60 ± 0.41 pb for a top-quark mass of mt = 172.5 GeV. The contributions to the uncertainty are 0.20 pb from statistical sources, 0.29 pb from systematic sources, and 0.21 pb from the uncertainty on the integrated luminosity. The result is in good agreement with the standard model expectation of 7.35+0.28 −0.33 pb at NNLO+NNLL in pertubative QCD.

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