期刊
PHYSICAL REVIEW D
卷 88, 期 9, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.88.091103
关键词
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资金
- U.S. Department of Energy
- National Science Foundation
- Italian Istituto Nazionale di Fisica Nucleare
- Ministry of Education, Culture, Sports, Science and Technology of Japan
- Natural Sciences and Engineering Research Council of Canada
- National Science Council of the Republic of China
- Swiss National Science Foundation
- A.P. Sloan Foundation
- Bundesministerium fur Bildung und Forschung, Germany
- Korean World Class University Program
- National Research Foundation of Korea
- Science and Technology Facilities Council
- Royal Society, UK
- Russian Foundation for Basic Research
- Ministerio de Ciencia e Innovacion
- Programa Consolider-Ingenio, Spain
- Slovak RD Agency
- Academy of Finland
- Australian Research Council (ARC)
- EU community Marie Curie Fellowship [302103]
- STFC [ST/H001069/2, ST/J005568/1, PP/E003699/2, ST/K00140X/1, ST/H001085/2, ST/H001085/1, ST/L00335X/1, ST/K000195/1, ST/K000748/1, PP/E003699/1, ST/K00137X/1] Funding Source: UKRI
- ICREA Funding Source: Custom
- Science and Technology Facilities Council [ST/H001085/2, ST/K00137X/1, PP/E003699/1, ST/H001069/2, ST/H001085/1, ST/M001474/1, ST/L00335X/1, ST/J005568/1, ST/K000195/1, ST/K000748/1, PP/E003699/2, ST/K00140X/1] Funding Source: researchfish
We present a measurement of the top-quark pair production cross section in proton-antiproton collisions at root s = 1.96 TeV. The data were collected at the Fermilab Tevatron by the CDF II detector and correspond to an integrated luminosity of 8.8 fb(-1), representing the complete CDF Run II data set. We select events consistent with the production of top-quark pairs by requiring the presence of two reconstructed leptons, an imbalance in the total event transverse momentum, and jets. At least one jet is required to be identified as consistent with the fragmentation of a bottom quark using a secondary-vertex-finding algorithm. The 246 candidate events are estimated to have a signal purity of 91%. We measure a cross section of sigma(t (t) over bar) = 7.09 +/- 0.84 pb, assuming a top-quark mass of 172.5 GeV/c(2). The results are consistent with the standard model as predicted by next-to-leading-order calculations.
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