期刊
PHYSICAL REVIEW LETTERS
卷 115, 期 23, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.115.232001
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资金
- Department of Energy (U.S.)
- National Science Foundation (U.S.)
- 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 (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 (the Federal Ministry of Education and Research) (Germany)
- Deutsche Forschungsgemeinschaft (the 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
- Direct For Mathematical & Physical Scien
- Division Of Physics [1206092] Funding Source: National Science Foundation
- Direct For Mathematical & Physical Scien
- Division Of Physics [1306951, 1508869, 1506017] Funding Source: National Science Foundation
- STFC [ST/K00137X/1, ST/K50208X/1, PP/D004284/1, ST/M000664/1, ST/K001604/1, ST/K001388/1, ST/J501074/1, ST/M503575/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/K001418/1, ST/K00137X/1, ST/M001474/1, ST/M000664/1, ST/J501074/1, ST/M503575/1, ST/K001604/1, ST/K50208X/1, PP/D004284/1, ST/K001388/1] Funding Source: researchfish
We present a study of the inclusive production of the X(4140) state with the decay to the J/psi phi final state in hadronic collisions. Based on 10.4 fb(-1) of p (p) over bar collision data collected by the D0 experiment at the Fermilab Tevatron collider, we report the first evidence for the prompt production of an X(4140) state and find the fraction of X(4140) events originating from b hadrons to be f(b) = 0.39 +/- 0.07 (stat) +/- 0.10 (syst). The ratio of the nonprompt X(4140) production rate to the B-s(0) yield in the same channel is R = 0.19 +/- 0.05 (stat) +/- 0.07 (syst). The values of the mass M = 4152.5 +/- 1.7 (stat)(-5.4)(+/- 6.2)(syst) MeV and width Gamma = 16.3 +/- 5.6 (stat) +/- 11.4 (syst) MeV are consistent with previous measurements.
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