Status Report - Light Charged Higgs t t ( [had] b )( l b ) - PowerPoint PPT Presentation

Status Report - Light Charged Higgs t ¯ t → ( τ [had] ν b )( l ν b ) Thies Ehrich, Susanne Mohrdieck-Moeck Max-Planck-Institut f¨ ur Physik (Werner Heisenberg Institut) M¨ unchen Group Meeting 22. Januar 2008 Thies Ehrich 1

CSC note 60 β tan -1 5 σ discovery region � 1fb 50 contribution sent for final draft 40 30 received comments of 1st referee 20 current deadline: ∼ February 22 10 publication: March 15 0 90 100 110 120 130 140 150 M (GeV) + H ) 22 -1 Significance (1fb 20 l 18 + W 16 14 ν t 12 b 10 g 8 6 b 4 had t τ 2 0 - 60 H 50 ν tan β 40 150 30 140 m 130 20 + 120 H 110 10 100 90 Thies Ehrich 2

Trigger migrated from L=10 31 to L=10 33 trigger menu as proposed by HG-10 Signature (L=10 33 ) Signature L=10 31 e60 e25i e25i+xe30 mu20i mu40 mu20+xe30 tau20i+xe30 tau35i+xe50 tau15i+xe20+3j20 tau35i+xe40+3j20 for the mu40 and missing et only L1 triggers are available in 12.0.6 detailed studies (by HG-10) with 7M minimum bias events showed that these where too inclusive L2 (muons )and EF (muon&xE) containers where added to the software to get a more realistic trigger (by cutting) Thies Ehrich 3

Systematics code and numbers where provided recently, considered where smeare of the resolution shift of the energy scale change of the reconstruction efficiencies EFFICIENCY EVENTS (NORM.) EVENTS (NORM.) 0.04 0.04 Constant Constant Constant 0.03697 0.03697 0.03697 0.00016 0.00016 0.00016 Constant Constant Constant Constant 0.03237 0.03237 0.03237 0.03237 0.00014 0.00014 0.00014 0.00014 Constant Constant Constant 0.03697 0.03697 0.03697 0.00016 0.00016 0.00016 Constant Constant Constant Constant 0.03708 0.03708 0.03708 0.03708 0.00016 0.00016 0.00016 0.00016 ± ± ± ± ± ± ± ± ± ± ± ± ± ± 0.85 Mean Mean Mean 0.001202 0.001202 0.001202 ± ± ± 0.000090 0.000090 0.000090 Mean Mean Mean Mean 0.000922 0.000922 0.000922 0.000922 ± ± ± ± 0.000112 0.000112 0.000112 0.000112 Mean Mean Mean 0.001202 0.001202 0.001202 ± ± ± 0.000090 0.000090 0.000090 Mean Mean Mean Mean -0.008349 -0.008349 -0.008349 -0.008349 ± ± ± ± 0.000093 0.000093 0.000093 0.000093 0.035 Sigma Sigma Sigma 0.0248 0.0248 0.0248 ± ± ± 0.0001 0.0001 0.0001 Sigma Sigma Sigma Sigma 0.02839 0.02839 0.02839 0.02839 ± ± ± ± 0.00012 0.00012 0.00012 0.00012 0.035 Sigma Sigma Sigma 0.0248 0.0248 0.0248 ± ± ± 0.0001 0.0001 0.0001 Sigma Sigma Sigma Sigma 0.02479 0.02479 0.02479 0.02479 ± ± ± ± 0.00009 0.00009 0.00009 0.00009 0.03 without systematics 0.03 without systematics 0.8 0.025 smeared resolution 0.025 shifted resolution 0.75 0.02 0.02 0.015 0.015 without systematics 0.7 0.01 0.01 killed events 0.005 0.005 0.65 0 0 -0.1 -0.05 0 0.05 0.1 -0.1 -0.05 0 0.05 0.1 RECO-TRUTH RECO-TRUTH -3 -2 -1 0 1 2 3 muon p ( ) muon p ( ) TRUTH TRUTH T T φ csc note will be updated if significances are computed (nearly everything is in place) Thies Ehrich 4