期刊
PHYSICAL REVIEW D
卷 89, 期 1, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.89.012004
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资金
- DOE (USA)
- NSF (USA)
- CEA (France)
- CNRS/IN2P3 (France)
- MON (Russia)
- NRC KI (Russia)
- RFBR (Russia)
- CNPq (Brazil)
- FAPERJ (Brazil)
- FAPESP (Brazil)
- FUNDUNESP (Brazil)
- DAE (India)
- DST (India)
- Colciencias (Colombia)
- CONACyT (Mexico)
- NRF (Korea)
- FOM (The Netherlands)
- STFC (United Kingdom)
- Royal Society (United Kingdom)
- MSMT (Czech Republic)
- GACR (Czech Republic)
- BMBF (Germany)
- DFG (Germany)
- SFI (Ireland)
- Swedish Research Council (Sweden)
- CAS (China)
- CNSF (China)
- STFC [ST/K001388/1, ST/I505756/1, ST/K50208X/1, PP/E000487/1, ST/F00754X/1, ST/F007418/1, ST/H00095X/1, ST/J501074/1, ST/H001069/2, ST/K000713/1, ST/M000664/1, ST/H00095X/2] Funding Source: UKRI
- ICREA Funding Source: Custom
- Science and Technology Facilities Council [ST/M001474/1, ST/M000664/1, ST/J501074/1, ST/H001069/2, ST/F00754X/1, ST/I505756/1, ST/K50208X/1, ST/F007418/1, ST/K001418/1, ST/H00095X/1, PP/E000487/1, ST/H00095X/2, ST/K000713/1, ST/K001388/1] Funding Source: researchfish
- Direct For Mathematical & Physical Scien
- Division Of Physics [1306951, 0969555, 1205960] Funding Source: National Science Foundation
- Division Of Physics
- Direct For Mathematical & Physical Scien [1206092] Funding Source: National Science Foundation
We investigate the decay B+ -> J/psi phi K+ in a search for the X(4140) state, a narrow threshold resonance in the J/psi phi system. The data sample corresponds to an integrated luminosity of 10.4 fb(-1) of p (p) over bar collisions at root s = 1.96 TeV collected by the D0 experiment at the Fermilab Tevatron collider. We observe a mass peak with a statistical significance of 3.1 standard deviations and measure its invariant mass to be M = 4159.0 +/- 4.3(stat) +/- 6.6(syst) MeV and its width to be Gamma = 19.9 +/- 12.6(stat)(-8.0)(+3.0)(syst) MeV.
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