{ "id": "0911.4449", "version": "v2", "published": "2009-11-23T17:19:36.000Z", "updated": "2010-03-10T20:38:45.000Z", "title": "Measurement of the WW+WZ Production Cross Section Using the Lepton+Jets Final State at CDF II", "authors": [ "The CDF Collaboration" ], "comment": "Version publised by PRL; shortened with minor changes.", "journal": "Phys.Rev.Lett.104:101801,2010", "doi": "10.1103/PhysRevLett.104.101801", "categories": [ "hep-ex" ], "abstract": "We report two complementary measurements of the WW+WZ cross section in the final state consisting of an electron or muon, missing transverse energy, and jets, performed using p\\bar{p} collision data at sqrt{s} = 1.96 TeV collected by the CDF II detector. The first method uses the dijet invariant mass distribution while the second more sensitive method uses matrix-element calculations. The result from the second method has a signal significance of 5.4 sigma and is the first observation of WW+WZ production using this signature. Combining the results gives sigma_{WW+WZ} = 16.0 +/- 3.3 pb, in agreement with the standard model prediction.", "revisions": [ { "version": "v2", "updated": "2010-03-10T20:38:45.000Z" } ], "analyses": { "subjects": [ "12.15.Ji", "14.70.Hp", "14.70.Fm", "14.80.Bn" ], "keywords": [ "production cross section", "final state", "measurement", "dijet invariant mass distribution", "standard model prediction" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review Letters", "year": 2010, "month": "Mar", "volume": 104, "number": 10, "pages": 101801 }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "inspire": 837610, "adsabs": "2010PhRvL.104j1801A" } } }