Journal
PHYSICAL REVIEW LETTERS
Volume 108, Issue 18, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.108.181803
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- DOE (USA)
- NSF (USA)
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- Division Of Physics
- Direct For Mathematical & Physical Scien [1066578] Funding Source: National Science Foundation
- ICREA Funding Source: Custom
- STFC [ST/K001604/1, ST/K50208X/1, PP/E000487/1, ST/F00754X/1, ST/F007418/1, ST/H00095X/1, ST/J501074/1, ST/K000713/1, ST/M000664/1, ST/H00095X/2, ST/K001388/1, ST/I505756/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/H00095X/2, ST/K001604/1 CMS Upgrade, ST/K001604/1 SuperNEMO, ST/K001604/1 LHCb, PP/E000487/1, ST/M000664/1, ST/J501074/1, ST/K001604/1 T2K, ST/H00095X/1, ST/K001604/1, ST/F007418/1, ST/K50208X/1, ST/K000713/1, PP/D004284/1, ST/K001388/1, ST/K001604/1 DMUK, ST/K001604/1 LHCb Upgrades, ST/K001604/1 GRIDPP, ST/K001604/1 MICE/UKNF, ST/F00754X/1, ST/I505756/1] Funding Source: researchfish
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We study WW and WZ production with lvqq (l = e, mu) final states using data collected by the D0 detector at the Fermilab Tevatron Collider corresponding to 4.3 fb(-1) of integrated luminosity from p (p) over bar collisions at root s = 1.96 TeV. Assuming the ratio between the production cross sections sigma(WW) and sigma(WZ) as predicted by the standard model, we measure the total WV (V = W, Z) cross section to be sigma(WV) = 19.6(-3.0)(+3.2) pb and reject the background-only hypothesis at a level of 7.9 standard deviations. We also use b-jet discrimination to separate the WZ component from the dominant WW component. Simultaneously fitting WW and WZ contributions, we measure sigma(WW) = 15.9(-3.2)(+3.7) pb and sigma(WZ) = 3.3(-3.3)(+4.1) pb, which is consistent with the standard model predictions.
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