期刊
PHYSICAL REVIEW D
卷 92, 期 5, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.92.052001
关键词
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资金
- CERN
- national agency: CAPES
- national agency: CNPq
- national agency: FAPERJ
- national agency: FINEP (Brazil)
- NSFC (China)
- CNRS/IN2P3 (France)
- BMBF
- DFG
- HGF
- 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 (USA)
- IN2P3 (France)
- KIT (Germany)
- BMBF (Germany)
- SURF (The Netherlands)
- PIC (Spain)
- GridPP (United Kingdom)
- EPLANET
- Marie Sklodowska-Curie Actions
- ERC (European Union)
- Conseil general de Haute-Savoie
- Labex ENIGMASS
- OCEVU
- Region Auvergne (France)
- RFBR (Russia)
- XuntaGal and GENCAT (Spain)
- Royal Society
- Royal Commission (United Kingdom)
- Division Of Physics
- Direct For Mathematical & Physical Scien [1205805] Funding Source: National Science Foundation
- Division Of Physics
- Direct For Mathematical & Physical Scien [1505719] Funding Source: National Science Foundation
- Science and Technology Facilities Council [ST/J004855/1, 1565032, ST/L003112/1, ST/L00352X/1, 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/M004791/1, ST/I003576/1, ST/L006146/1, ST/K000705/1, ST/L003163/1 LHCb Upgrades, ST/H006737/1, ST/K001310/1 LHCb Upgrades, 1369397, 1364044, ST/K003410/1, ST/I000097/1, ST/H00100X/2, 1225304, ST/K003534/1, ST/K001310/1, ST/J004332/1, GRIDPP, ST/L003392/1, ST/K001310/1 ATLAS Upgrades, ST/K003534/1 GRIDPP, 1208164, LHCb, ST/K004646/1, PP/E003095/1, 1564711, PP/E000355/1, ST/H00100X/1] Funding Source: researchfish
- STFC [ST/H00100X/2, ST/L001195/1, ST/H00100X/1, ST/L003392/1, PP/E000355/1, ST/J004855/1, ST/I003576/1, ST/M004791/1, ST/H006737/1, ST/M000729/1, ST/K000705/1, 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/M000761/1, ST/I000097/1, ST/M004058/1, ST/L003112/1, LHCb Upgrades, ST/L003163/1, LHCb, ST/N000447/1, ST/J004332/1, ST/K003410/1, ST/K004646/1, ST/K00137X/1, ST/K001604/1] Funding Source: UKRI
The associated production of a W boson with a jet originating from either a light parton or heavy-flavor quark is studied in the forward region using proton-proton collisions. The analysis uses data corresponding to integrated luminosities of 1.0 and 2.0 fb(-1) collected with the LHCb detector at center-of-mass energies of 7 and 8 TeV, respectively. The W bosons are reconstructed using the W -> mu nu decay and muons with a transverse momentum, p(T), larger than 20 GeV in the pseudorapidity range 2.0 < eta < 4.5. The partons are reconstructed as jets with p(T) > 20 GeV and 2.2 < eta < 4.2. The sum of the muon and jet momenta must satisfy p(T) > 20 GeV. The fraction of W + jet events that originate from beauty and charm quarks is measured, along with the charge asymmetries of the W+b and W+c production cross sections. The ratio of the W + jet to Z + jet production cross sections is also measured using the Z -> mu mu decay. All results are in agreement with Standard Model predictions.
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