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

Status Report - Light Charged Higgs t¯ t → (τ[had]νb)(lνb)

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

contribution sent for final draft received comments of 1st referee current deadline: ∼ February 22 publication: March 15

g t t

+

W b l ν b

• H

τ ν had

(GeV)

+

H

M 90 100 110 120 130 140 150 β tan 10 20 30 40 50 60

• 1

discovery region 1fb σ 5

+

H

m 90 100 110 120 130 140 150 β tan 10 20 30 40 50 60 )

• 1

Significance (1fb 2 4 6 8 10 12 14 16 18 20 22

Thies Ehrich 2

Trigger

migrated from L=1031 to L=1033 trigger menu as proposed by HG-10 Signature L=1031 e25i mu20i tau20i+xe30 tau15i+xe20+3j20 Signature (L=1033) e60 e25i+xe30 mu40 mu20+xe30 tau35i+xe50 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

Constant 0.00016 ± 0.03697 Mean 0.000090 ± 0.001202 Sigma 0.0001 ± 0.0248

) TRUTH RECO-TRUTH (

T

muon p

• 0.1
• 0.05

0.05 0.1 EVENTS (NORM.) 0.005 0.01 0.015 0.02 0.025 0.03 0.035 0.04

Constant 0.00016 ± 0.03697 Mean 0.000090 ± 0.001202 Sigma 0.0001 ± 0.0248 Constant 0.00016 ± 0.03697 Mean 0.000090 ± 0.001202 Sigma 0.0001 ± 0.0248 Constant 0.00014 ± 0.03237 Mean 0.000112 ± 0.000922 Sigma 0.00012 ± 0.02839 Constant 0.00014 ± 0.03237 Mean 0.000112 ± 0.000922 Sigma 0.00012 ± 0.02839 Constant 0.00014 ± 0.03237 Mean 0.000112 ± 0.000922 Sigma 0.00012 ± 0.02839 Constant 0.00014 ± 0.03237 Mean 0.000112 ± 0.000922 Sigma 0.00012 ± 0.02839 without systematics smeared resolution Constant 0.00016 ± 0.03697 Mean 0.000090 ± 0.001202 Sigma 0.0001 ± 0.0248

) TRUTH RECO-TRUTH (

T

muon p

• 0.1
• 0.05

0.05 0.1 EVENTS (NORM.) 0.005 0.01 0.015 0.02 0.025 0.03 0.035 0.04

Constant 0.00016 ± 0.03697 Mean 0.000090 ± 0.001202 Sigma 0.0001 ± 0.0248 Constant 0.00016 ± 0.03697 Mean 0.000090 ± 0.001202 Sigma 0.0001 ± 0.0248 Constant 0.00016 ± 0.03708 Mean 0.000093 ±

• 0.008349

Sigma 0.00009 ± 0.02479 Constant 0.00016 ± 0.03708 Mean 0.000093 ±

• 0.008349

Sigma 0.00009 ± 0.02479 Constant 0.00016 ± 0.03708 Mean 0.000093 ±

• 0.008349

Sigma 0.00009 ± 0.02479 Constant 0.00016 ± 0.03708 Mean 0.000093 ±

• 0.008349

Sigma 0.00009 ± 0.02479 without systematics shifted resolution

φ

• 3
• 2
• 1

1 2 3 EFFICIENCY 0.65 0.7 0.75 0.8 0.85

without systematics killed events

csc note will be updated if significances are computed (nearly everything is in place)

Thies Ehrich 4