01. 08. 2012. Sungeun Lee Sungkyunkwan University
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Search for doubly charged Higgs bosons in three lepton channels at √s=7TeV at CMS (Fall11 MC data analysis) 01. 08. 2012. Sungeun Lee Sungkyunkwan University 1
description
Search for doubly charged Higgs bosons in three lepton channels at √s=7TeV at CMS (Fall11 MC data analysis). 01. 08. 2012. Sungeun Lee Sungkyunkwan University. Introduction. E xistence of non-zero neutrino masses T ype II seesaw mechanism Higgs triplet model - PowerPoint PPT Presentation
Transcript of 01. 08. 2012. Sungeun Lee Sungkyunkwan University
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Search for doubly charged Higgs bosons in three lepton channels
at √s=7TeV at CMS(Fall11 MC data analysis)
01. 08. 2012. Sungeun LeeSungkyunkwan University
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Introduction• Existence of non-zero neutrino masses• Type II seesaw mechanism• Higgs triplet model• Pair-production process & Associated production process
• limits on the F++ mass• Limit between 112 and 355 GeV
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AnalysisWhen one lepton is missing in pair production channel• Luminosity : 4.638 fb-1• Lepton selection - muon : pt>10, | |<2.4, Global Muon, nchi2<10, d0<0.02, sip<4,
Good muon, valid hit>20, nstation>0 - electron : pt>10, | |<2.5, nchi2<10, d0<0.02, sip<4, eidMedium
• Event selection - - (between the same sign di-leptons)
• Fall11 data
ptpt
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eeee eeem eemm
nlep>=2- muon : pt>10, | |<2.4, Global Muon, nchi2<10, d0<0.02, sip<4, Good muon, valid hit>20, nstation>0- electron : pt>10, | |<2.5, nchi2<10, d0<0.02, sip<4, eidMedium
Signal mass 150GeV Cut variable (1)one lepton missing
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nlep>=2- muon : pt>10, | |<2.4, Global Muon, nchi2<10, d0<0.02, sip<4, Good muon, valid hit>20, nstation>0- electron : pt>10, | |<2.5, nchi2<10, d0<0.02, sip<4, eidMedium
emem emmm mmmm
Signal mass 150GeV Cut variable (2)one lepton missing
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eeee eeem eemm
nlep>=2- muon : pt>10, | |<2.4, Global Muon, nchi2<10, d0<0.02, sip<4, Good muon, valid hit>20, nstation>0- electron : pt>10, | |<2.5, nchi2<10, d0<0.02, sip<4, eidMedium
Signal mass 150GeV Mass distribution (1)one lepton missing
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emem emmm mmmm
nlep>=2- muon : pt>10, | |<2.4, Global Muon, nchi2<10, d0<0.02, sip<4, Good muon, valid hit>20, nstation>0- electron : pt>10, | |<2.5, nchi2<10, d0<0.02, sip<4, eidMedium
Signal mass 150GeV Mass distribution (2)one lepton missing
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Events (1) – one lepton missingeeee 150GeV 170GeV 200GeV 250GeV 300GeV 350GeV 400GeV 500GeV
Signal 64.98 35.43 17.25 4.70 0.95 0.83 0.62 0.14
Background 22.52 10.36 4.83 0.73 0.028 0.043 0.043 0.0086
data 34 20 12 5 2 2 2 1
eeem 150GeV 170GeV 200GeV 250GeV 300GeV 350GeV 400GeV 500GeV
Signal 63.38 34.31 15.31 4.47 1.58 0.64 0.59 0.050
Background 39.67 19.61 8.68 1.49 0.32 0.13 0.14 0.00032
data 44 27 15 5 2 3 2 0
eemm 150GeV 170GeV 200GeV 250GeV 300GeV 350GeV 400GeV 500GeV
Signal 116.82 61.24 25.07 9.68 4.28 2.28 0.29 0.15
Background 19.79 8.99 2.91 1.00 0.56 0.56 0.00032 0.00032
data 15 3 1 0 0 0 0 0
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Events (2) – one lepton missingemem 150GeV 170GeV 200GeV 250GeV 300GeV 350GeV 400GeV 500GeV
Signal 56.01 32.75 15.78 2.83 0.84 0.64 0.57 0.056
Background 46.64 22.82 14.04 0.90 0.095 0.15 0.23 0.012
data 50 22 10 2 0 0 2 0
emmm 150GeV 170GeV 200GeV 250GeV 300GeV 350GeV 400GeV 500GeV
Signal 50.79 37.85 13.90 5.66 1.47 0.30 0.10 0.042
Background 51.15 56.44 16.51 7.25 0.98 0.055 0.0036 0.0036
data 63 70 14 6 2 0 0 0
mmmm 150GeV 170GeV 200GeV 250GeV 300GeV 350GeV 400GeV 500GeV
Signal 58.89 31.37 11.96 3.87 1.84 0.24 0.21 0.048
Background 32.88 15.58 3.27 1.20 0.51 0.0049 0.0052 0.00032
data 53 23 5 1 0 0 0 0
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Limit of eeee channelone lepton missing
Exp. Limit : 204GeVObs. Limit : 174GeV
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Limit of eeem channelone lepton missing
Exp. Limit : 198GeVObs. Limit : 171GeV
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Limit of eemm channelone lepton missing
Exp. Limit : 254GeVObs. Limit : 277GeV
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Limit of emem channelone lepton missing
Exp. Limit : 186GeVObs. Limit : 187GeV
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Limit of emmm channelone lepton missing
Exp. Limit : 186GeVObs. Limit : 195GeV
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Limit of mmmm channelone lepton missing
Exp. Limit : 195GeVObs. Limit : 196GeV
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Signal mass 150GeV Cut variable (1)Associated channel
eeee eeem eemm
nlep>=2- muon : pt>10, | |<2.4, Global Muon, nchi2<10, d0<0.02, sip<4, Good muon, valid hit>20, nstation>0- electron : pt>10, | |<2.5, nchi2<10, d0<0.02, sip<4, eidMedium
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Signal mass 150GeV Cut variable (2)Associated channel
nlep>=2- muon : pt>10, | |<2.4, Global Muon, nchi2<10, d0<0.02, sip<4, Good muon, valid hit>20, nstation>0- electron : pt>10, | |<2.5, nchi2<10, d0<0.02, sip<4, eidMedium
emem emmm mmmm
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Signal mass 150GeV Mass distribution (1)Associated channel
eeee eeem eemm
nlep>=2- muon : pt>10, | |<2.4, Global Muon, nchi2<10, d0<0.02, sip<4, Good muon, valid hit>20, nstation>0- electron : pt>10, | |<2.5, nchi2<10, d0<0.02, sip<4, eidMedium
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Signal mass 150GeV Mass distribution (2)Associated channel
emem emmm mmmm
nlep>=2- muon : pt>10, | |<2.4, Global Muon, nchi2<10, d0<0.02, sip<4, Good muon, valid hit>20, nstation>0- electron : pt>10, | |<2.5, nchi2<10, d0<0.02, sip<4, eidMedium
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Events (1) – Associated channeleeee 150GeV 170GeV 200GeV 250GeV 300GeV 350GeV 400GeV 500GeV
Signal 216.54 152.98 76.19 18.11 10.12 2.81 2.06 0.70
Background 22.52 22.52 11.86 0.73 0.73 0.043 0.043 0.017
data 34 34 21 5 5 2 2 1
eeem 150GeV 170GeV 200GeV 250GeV 300GeV 350GeV 400GeV 500GeV
Signal 229.02 165.87 83.64 18.09 13.00 4.35 2.18 0.95
Background 39.67 39.67 19.61 1.49 2.87 0.32 0.14 0.14
data 44 44 27 5 6 3 2 2
eemm 150GeV 170GeV 200GeV 250GeV 300GeV 350GeV 400GeV 500GeV
Signal 483.16 344.54 168.74 66.38 22.47 11.93 4.45 0.71
Background 19.7903 21.90 8.99 5.14 0.71 0.71 0.12 0.00032
data 15 15 3 1 0 0 0 0
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Events (2) – Associated channelemem 150GeV 170GeV 200GeV 250GeV 300GeV 350GeV 400GeV 500GeV
Signal 246.18 178.40 72.32 26.29 8.87 5.59 2.64 0.94
Background 46.64 46.64 14.04 4.14 0.90 0.90 0.23 0.16
data 50 50 10 3 2 2 2 2
emmm 150GeV 170GeV 200GeV 250GeV 300GeV 350GeV 400GeV 500GeV
Signal 266.61 201.74 82.00 31.94 9.72 6.16 1.49 0.61
Background 51.15 56.44 16.51 6.27 0.98 0.98 0.069 0.057
data 63 70 14 4 2 2 0 1
mmmm 150GeV 170GeV 200GeV 250GeV 300GeV 350GeV 400GeV 500GeV
Signal 394.39 215.41 105.24 40.82 14.58 7.20 1.85 0.75
Background 36.97 15.58 7.37 3.27 0.51 0.30 0.022 0.0061
data 55 23 11 5 0 0 0 0
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Limit of associated eeee channel
Exp. Limit : 293GeVObs. Limit : 250GeV
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Limit of associated eeem channel
Exp. Limit : 329GeVObs. Limit : 269GeV
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Limit of associated eemm channel
Exp. Limit : 415GeVObs. Limit : 420GeV
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Limit of associated emem channel
Exp. Limit : 348GeVObs. Limit : 299GeV
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Limit of associated emmm channel
Exp. Limit : 330GeVObs. Limit : 312GeV
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Limit of associated mmmm channel
Exp. Limit : 357GeVObs. Limit : 363GeV
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3 Lepton sample publish
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Plan
• Correction of pileup reweighting codes• Summer12 MC PFPAT data analysis• CUT variables…
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Back up
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Events• <eeee>• mass(GeV) : 150 170 200 250 300 350 400 500• S : 64.9841 35.4304 17.2492 4.69681 0.947816 0.826979 0.62114 0.135293• B : 22.5202 10.3578 4.83333 0.726678 0.0280411 0.043167 0.043167 0.00857024• D : 34 20 12 5 2 2 2 1
• <eeem>• mass(GeV) : 150 170 200 250 300 350 400 500• S : 63.3803 34.311 15.3072 4.46776 1.58273 0.640187 0.593934 0.0503739• B : 39.6707 19.6065 8.67808 1.48814 0.315089 0.130486 0.13862 0.000315804• D : 44 27 15 5 3 2 2 0
• <eemm>• mass(GeV) : 150 170 200 250 300 350 400 500• S : 116.822 61.2393 25.0744 9.68248 4.27894 2.28309 0.289205 0.145799• B : 19.7903 8.99028 2.91216 0.99708 0.564752 0.564752 0.000315804 0.000315804• D : 15 3 1 0 0 0 0 0
• <emem>• mass(GeV) : 150 170 200 250 300 350 400 500• S : 56.0087 32.7474 15.784 2.82923 0.838134 0.643711 0.571472 0.0562759• B : 46.6354 22.8186 14.0442 0.899486 0.0954917 0.149004 0.228498 0.0115323• D : 50 22 10 2 0 0 2 0
• <emmm>• mass(GeV) : 150 170 200 250 300 350 400 500• S : 50.7907 37.8536 13.8968 5.65774 1.47306 0.295304 0.10224 0.0418393• B : 51.153 56.438 16.5083 7.25103 0.980587 0.0551669 0.00359362 0.00359362• D : 63 70 14 6 2 0 0 0
• <mmmm>• mass(GeV) : 150 170 200 250 300 350 400 500• S : 58.8941 31.3744 11.9567 3.86708 1.83828 0.23958 0.210045 0.0484155• B : 32.8792 15.5773 3.2697 1.20227 0.511467 0.00485684 0.00517264 0.000315804• D : 53 23 5 1 0 0 0 0
