This Letter describes the current most precise measurement
of the W boson pair production cross section and most sensitive test
of anomalous WWgamma and WWZ couplings in p anti-p collisions at a
center-of-mass energy of 1.96 TeV. The WW candidates are reconstructed
from decays containing two charged leptons and two neutrinos, where the
charged leptons are either electrons or muons. Using data collected by
the CDF II detector from 3.6 fb-1 of integrated luminosity, a total of
654 candidate events are observed with an expected background contribution
of 320 +/- 47 events. The measured total cross section is sigma(p anti-p
--> W+W- + X) ñ2.1 +/- 0.9 (stat)+1.6_-1.4 (syst) pb, which is in good
agreement with the standard model prediction. The same data sample is
used to place constraints on anomalous WWgamma and WWZ couplings.
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Updated: Tuesday, 2010 July 27 16:13:41 CDT automatically from input from Carol Picciolo