Cut data Tot. q qbar l+ l- WWEX eeqq other 4f gam gam Presel 1242. 1171.56± 2.33 744.89 0.10 384.29 26.10 5.07 11.11 Strongid 168. 195.93± 0.97 73.31 0.00 99.77 17.99 1.33 3.53 El.ene. 68. 78.65± 0.59 21.11 0.00 39.49 15.98 0.56 1.51 Fit pr. 31. 30.18± 0.36 7.98 0.00 8.81 12.19 0.19 1.01 Jet Iso. 13. 14.58± 0.25 0.83 0.00 1.47 11.33 0.11 0.84 Mass sel 7. 11.57± 0.22 0.53 0.00 0.90 9.38 0.09 0.67 B tag 1. 3.45± 0.11 0.13 0.00 0.07 3.05 0.03 0.17