期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 4, 页码 -出版社
SPRINGER
DOI: 10.1007/JHEP04(2015)024
关键词
Spectroscopy; Hadron-Hadron Scattering; QCD; B physics; Flavor physics
资金
- CAPES (Brazil)
- CNPq (Brazil)
- FAPERJ (Brazil)
- FINEP (Brazil)
- NSFC (China)
- CNRS/IN2P3 (France)
- BMBF (Germany)
- DFG (Germany)
- HGF (Germany)
- MPG (Germany)
- INFN (Italy)
- FOM (The Netherlands)
- NWO (The Netherlands)
- MNiSW (Poland)
- NCN (Poland)
- MEN/IFA (Romania)
- MinES (Russia)
- FANO (Russia)
- MinECo (Spain)
- SNSF (Switzerland)
- SER (Switzerland)
- NASU (Ukraine)
- STFC (United Kingdom)
- NSF (U.S.A.)
- IN2P3 (France)
- KIT (Germany)
- SURF (The Netherlands)
- PIC (Spain)
- GridPP (United Kingdom)
- EPLANET (European Union)
- Marie Sklodowska-Curie Actions (European Union)
- ERC (European Union)
- Conseil general de Haute-Savoie (France)
- Labex ENIGMASS (France)
- OCEVU, Region Auvergne (France)
- RFBR (Russia)
- XuntaGal (Spain)
- GENCAT (Spain)
- Royal Society (United Kingdom)
- CERN
- Royal Commission for the Exhibition of 1851 (United Kingdom)
- STFC [ST/M001407/1, ST/L003538/1, ST/K00140X/1, ST/J50094X/1, ST/J005495/1, PP/E003095/1, ST/K001302/1, ST/K003534/1, ST/L00352X/1, ST/L006146/1, ST/M004791/1, ST/M000761/1, ST/L003392/1, ST/I000097/1, ST/M004058/1, ST/N000447/1, ST/J004332/1, ST/K003410/1, ST/K004646/1, ST/K00137X/1, ST/K001604/1, ST/H00100X/2, ST/H00100X/1, ST/L003112/1, PP/E000355/1, ST/J004855/1, LHCb, LHCb Upgrades, ST/L003163/1, ST/I003576/1, ST/L001195/1, ST/K000705/1, ST/M000729/1, ST/H006737/1] Funding Source: UKRI
- Science and Technology Facilities Council [1225314, ST/K001302/1, 1415632, 1299204, ST/K001256/1, ST/M000761/1, ST/L001195/1, ST/M001407/1, LHCb Upgrades, 1511824, ST/N000447/1, ST/M000729/1, ST/L003163/1, 1096173, ST/M001474/1, ST/L003538/1, ST/M004791/1 GRIDPP, ST/N000250/1, 1416165, ST/K001310/1 ATLAS, ST/M004058/1, ST/K00137X/1, ST/K001418/1, ST/J005495/1, ST/K001604/1, ST/J50094X/1, ST/K00140X/1, ST/K001310/1 LHCb, ST/K006444/1 DMUK, ST/M004791/1, ST/I003576/1, ST/H00100X/1, PP/E000355/1, 1564711, PP/E003095/1, ST/K004646/1, LHCb, 1208164, ST/K003534/1 GRIDPP, ST/K001310/1 ATLAS Upgrades, ST/L003392/1, GRIDPP, ST/J004332/1, ST/K001310/1, ST/K003534/1, 1225304, ST/H00100X/2, ST/I000097/1, ST/K003410/1, 1364044, 1369397, ST/K001310/1 LHCb Upgrades, ST/H006737/1, ST/L003163/1 LHCb Upgrades, ST/L00352X/1, ST/L003112/1, ST/L006146/1, ST/K000705/1, ST/J004855/1] Funding Source: researchfish
- Direct For Mathematical & Physical Scien
- Division Of Physics [1505719] Funding Source: National Science Foundation
- Division Of Physics
- Direct For Mathematical & Physical Scien [1205805] Funding Source: National Science Foundation
Invariant mass distributions of B (+) pi (-) and B (0) pi (+) combinations are investigated in order to study excited B mesons. The analysis is based on a data sample corresponding to 3.0 fb(-1) of pp collision data, recorded by the LHCb detector at centre-of-mass energies of 7 and 8 TeV. Precise measurements of the masses and widths of the B (1)(5721)(0,+) and B (2)(5747)(0,+) states are reported. Clear enhancements, particularly prominent at high pion transverse momentum, are seen over background in the mass range 5850-6000 MeV in both B (+) pi (-) and B (0) pi (+) combinations. The structures are consistent with the presence of four excited B mesons, labelled B (J) (5840)(0,+) and B (J) (5960)(0,+), whose masses and widths are obtained under different hypotheses for their quantum numbers.
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