We present a measurement of the W-boson-pair production cross section in pp¯ collisions at 1.96 TeV center-of-mass energy and the first measurement of the differential cross section as a function of jet multiplicity and leading-jet energy. The W<sup>+</sup>W<sup>-</sup> cross section is measured in the final state comprising two charged leptons and neutrinos, where either charged lepton can be an electron or a muon. Using data collected by the CDF experiment corresponding to 9.7fb-1 of integrated luminosity, a total of 3027 collision events consistent with W<sup>+</sup>W<sup>-</sup> production are observed with an estimated background contribution of 1790 ± 190 events. The measured total cross section is σ(pp¯ → W<sup>+</sup>W<sup>-</sup>)= 14.0 ± 0.6 (stat)<inf>-1.0</inf><sup>+1.2</sup> (syst) ± 0.8 (lumi) pb, consistent with the standard model prediction.
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1103/PhysRevD.91.111101|
|Codice identificativo ISI:||WOS:000356659700001|
|Codice identificativo Scopus:||2-s2.0-84936873458|
|Titolo:||Measurement of the production and differential cross sections of W<sup>+</sup>W<sup>-</sup> bosons in association with jets in pp¯ collisions at √s = 1.96TeV|
|Appare nelle tipologie:||1.1 Articolo in rivista|