atlas analysis one lepton mode susy
DESCRIPTION
ATLAS analysis One Lepton Mode SUSY. 2007.7.13 Ginga Akimoto. Background estimation (1fb-1). SU1-SU4 tt->bblnln tt->bblnqq W Leading Jet pt mEt nJet(Pt>50GeV) Lep Pt Control Sample (MtTRANSCRIPT
The Univ. of TokyoDept. of Physics
ATLAS analysisOne Lepton Mode SUSY
2007.7.13Ginga Akimoto
Dept of Physics
Background estimation (1fb-1)
SU1-SU4 tt->bblnln tt->bblnqq W
1. Leading Jet pt2. mEt3. nJet(Pt>50GeV)4. Lep Pt
Control Sample (Mt <100GeV)1. renormalize by Event # of mEt=100GeV-200GeV
Dept of Physics
Mt
Dept of Physics
# Na(Mt<100Gev ) and Nb(Mt=100-400)
Na(ctrl) Nb(100-) N_over1. ttlnln 194.876 197.3722. ttlnqq 1773.54 63.25663. W 786.222 29.05384. SU1 172.065 236.283 19.1486 5. SU2 22.518 30.9096 2.505966. SU3 325.83 407.035 36.26077. SU4 3819.93 3238.3 425.109 N_over=Na(SUSY)/Na(ttlnqq)*Nb(ttlnln) Nb(SUSY) >> N_over ～ 10%
Dept of Physics
Control Sample = [ MT < 100GeV ]
Dept of Physics
mEt ( -0- is CTRL estimation )
Dept of Physics
Jet Pt1
Dept of Physics
nJet
Dept of Physics
Lepton Pt ( >20GeV)
Dept of Physics
Mt > 200GeV
low mEt missing @ high Mt
mEt
Mt
Dept of Physics
Mt > 400GeV
Dept of Physics
BG estimate
Dept of Physics
systematic error (mEt)
mEt ------>
mEt*1.1