Status report from the LEPSUSYwg: “The stau excess” F Cerutti, G.Ganis, F.Holldorfer, K.Jakobs and M.Maggi. The facts: First look to the excess Studies going on … Perspectives for 2000 run Signal hypothesis Fluctuation hypothesis Possible strategy Conclusions ?!?.
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Mt=85 GeV Mc=20 GeV:
P(Bkg,NNcand) = 3 x 10-3
Pt1 Pt2 Pmiss Weight(bkg) Bin-position, ...
Excess = 38±14 (2.7 s)
can bkg can bkg
189 20 15.520 15.5
192-202 36 35.530(46) 21.7(34.2)
Significance for Mstau = 89-85 GeV
can we exclude at 95% CL 85<Mt<89 with next year data alone ?
YES but for configurations 10, 11, 15 and 17(89 GeV only) !
Y2K optimal stau strategy ?!?