Journal
PHYSICAL REVIEW LETTERS
Volume 105, Issue 1, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.105.012001
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Funding
- 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 Science and Engineering Foundation
- Korean Research Foundation
- Science and Technology Facilities Council
- Royal Society, UK
- Institut National de Physique Nucleaire et Physique des Particules/CNRS
- Russian Foundation for Basic Research
- Comision Interministerial de Ciencia y Tecnologia, Spain
- European Community
- Slovak RD Agency
- Academy of Finland
- STFC [ST/H001026/1, ST/H001026/2, ST/H001077/1, ST/H001069/1] Funding Source: UKRI
- Science and Technology Facilities Council [PP/E000444/1, ST/H001026/1, ST/H001026/2] Funding Source: researchfish
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We report a measurement of the ratio of the t (t) over bar to Z/gamma* production cross sections in root s = 1.96 TeV p (p) over bar collisions using data corresponding to an integrated luminosity of up to 4.6 fb(-1), collected by the CDF II detector. The t (t) over bar cross section ratio is measured using two complementary methods, a b-jet tagging measurement and a topological approach. By multiplying the ratios by the well-known theoretical Z/gamma* -> ll cross section predicted by the standard model, the extracted t (t) over bar cross sections are effectively insensitive to the uncertainty on luminosity. A best linear unbiased estimate is used to combine both measurements with the result sigma(t (t) over bar) = 7.70 +/- 0.52 pb, for a top-quark mass of 172.5 GeV/c(2).
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