期刊
PHYSICAL REVIEW LETTERS
卷 105, 期 25, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.105.252001
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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
- World Class University
- National Research Foundation of Korea
- Science and Technology Facilities Council
- Royal Society, United Kingdom
- Institut National de Physique Nucleaire et Physique des Particules/CNRS
- Russian Foundation for Basic Research
- Ministerio de Ciencia e Innovacion, and Programa Consolider, Spain
- Slovak RD Agency
- Academy of Finland
- STFC [ST/H001069/1, ST/H001026/1, ST/H001077/1, ST/H001026/2] Funding Source: UKRI
- Science and Technology Facilities Council [ST/H001026/1, ST/H001069/1, ST/H001077/1, ST/H001026/2, PP/E000444/1] Funding Source: researchfish
A precision measurement of the top quark mass m(t) is obtained using a sample of t (t) over bar events from p (p) over bar collisions at the Fermilab Tevatron with the CDF II detector. Selected events require an electron or muon, large missing transverse energy, and exactly four high-energy jets, at least one of which is tagged as coming from a b quark. A likelihood is calculated using a matrix element method with quasi-Monte Carlo integration taking into account finite detector resolution and jet mass effects. The event likelihood is a function of mt and a parameter Delta(JES) used to calibrate the jet energy scale in situ. Using a total of 1087 events in 5.6 fb(-1) of integrated luminosity, a value of m(t) 173.0 +/- 1.2 GeV/c(2) is measured.
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