Journal
PHYSICAL REVIEW LETTERS
Volume 115, Issue 4, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.115.041801
Keywords
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Funding
- Department of Energy (United States of America)
- National Science Foundation (United States of America)
- Alternative Energies and Atomic Energy Commission (France)
- National Center for Scientific Research/National Institute of Nuclear and Particle Physics (France)
- Ministry of Education and Science of the Russian Federation (Russia)
- National Research Center Kurchatov Institute of the Russian Federation (Russia)
- Russian Foundation for Basic Research (Russia)
- National Council for the Development of Science and Technology (Brazil)
- Carlos Chagas Filho Foundation for the Support of Research in the State of Rio de Janeiro (Brazil)
- Department of Atomic Energy (India)
- Department of Science and Technology (India)
- Administrative Department of Science, Technology and Innovation (Colombia)
- National Council of Science and Technology (Mexico)
- National Research Foundation of Korea (Korea)
- Foundation for Fundamental Research on Matter (The Netherlands)
- Science and Technology Facilities Council (United Kingdom)
- Royal Society (United Kingdom)
- Ministry of Education, Youth and Sports (Czech Republic)
- Bundesministerium fur Bildung und Forschung (Federal Ministry of Education and Research) (Germany)
- Deutsche Forschungsgemeinschaft (German Research Foundation) (Germany)
- Science Foundation Ireland (Ireland)
- Swedish Research Council (Sweden)
- China Academy of Sciences (China)
- National Natural Science Foundation of China (China)
- Ministry of Education and Science of Ukraine (Ukraine)
- ICREA Funding Source: Custom
- STFC [ST/K001604/1, ST/K50208X/1, ST/J501074/1, ST/M503575/1, PP/D004284/1, ST/M000664/1, ST/K001388/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/M001474/1, ST/M000664/1, ST/J501074/1, ST/M503575/1, ST/K001418/1, ST/K001604/1, ST/K50208X/1, PP/D004284/1, ST/K001388/1] Funding Source: researchfish
- Direct For Mathematical & Physical Scien
- Division Of Physics [1206092] Funding Source: National Science Foundation
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We present a measurement of the fundamental parameter of the standard model, the weak mixing angle sin(2)theta(l)(eff) which determines the relative strength of weak and electromagnetic interactions, in p (p) over bar -> Z/gamma* -> e(+)e(-) events at a center of mass energy of 1.96 TeV, using data corresponding to 9.7 fb(-1) of integrated luminosity collected by the D0 detector at the Fermilab Tevatron. The effective weak mixing angle is extracted from the forward-backward charge asymmetry as a function of the invariant mass around the Z boson pole. The measured value of sin(2)theta(l)(eff) = 0.23147 +/- 0.00047 is the most precise measurement from light quark interactions to date, with a precision close to the best LEP and SLD results.
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