search for doubly charged higgs bosons in e- μ channel at cms
DESCRIPTION
Search for doubly charged Higgs bosons in e- μ channel at CMS. Feb. 23, 2013 Jongseok Lee (Sungkyunkwan University). Contents. 7TeV Samples Lepton cut variables Data driven background estimation Comparison with Mario Systematic uncertainties Effect of tau 8TeV analysis - PowerPoint PPT PresentationTRANSCRIPT
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Search for doubly charged Higgs bosons in e-μ channel
at CMS
1
Feb. 23, 2013 Jongseok Lee(Sungkyunkwan University)
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Contents• 7TeV Samples
• Lepton cut variables
• Data driven background estimation
• Comparison with Mario
• Systematic uncertainties
• Effect of tau
• 8TeV analysis
• Summary and Plan 2
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Samples• Used CMSSW version : 4_4_2
• MC signal samples (√s=7TeV) : full simulation data → H++H-- to l+l+l-l-
→ M(H±±) = 150, 170, 200, 250, 300, 400, 500GeV • MC background samples : full simulation data → ZZJetsTo4L, WZJetsTo3LNu TTTo2L2Nu2B, DYJetsToLL
• Data samples : 2011 data, Lint(μμ)= 4.75 fb-1 , Lint(ee)= 4.98 fb-1 ,
Lint (eμ)= 4.98 fb-1
3
calculated by Michael Spira
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Mμμ
4
nm>=2, pt>10, |η|<2.4, global, good, mu_hits_val>20, mu_nstation>0, relIso<0.2, 60<Mμμ<120
lumi : 4.983 fb-1
cross section of DY: 3048 fb
lumi : 4.753 fb-1
cross section of DY : 3048 fb
lumi : 4.753 fb-1
cross section of DYfor 60<Mll<120 : 2916 fb
Standard model cross sections for CMS at 7TeV : https://twiki.cern.ch/twiki/bin/viewauth/CMS/StandardModelCrossSections
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Muon cut variables
5
nm>=2, pt>10, |η|<2.4, global, good, nhits_val>20, nsation>=1, relIso<0.2, 60<Mμμ<120
7TeV, 4.753 fb-1
7TeV, 4.753 fb-1
7TeV, 4.753 fb-1
7TeV, 4.753 fb-1
7TeV, 4.753 fb-1
7TeV, 4.753 fb-1
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Mee
6
ne>=2, pt>10, |η|<2.5, charge consistent, eidLoose, relIso<0.2, 60<Mμμ<120
lumi : 4.983 fb-1
cross section of DY: 3048 fb
lumi : 4.983 fb-1
cross section of DYfor 60<Mll<120 : 2916 fb
Standard model cross sections for CMS at 7TeV : https://twiki.cern.ch/twiki/bin/viewauth/CMS/StandardModelCrossSections
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Electron cut variables
7
ne>=2, pt>10, |η|<2.5, eidLoose, relIso<0.2
7TeV, 4.983 fb-1
7TeV, 4.983 fb-1 7TeV, 4.983
fb-1
7TeV, 4.983 fb-1 7TeV, 4.983
fb-1
7TeV, 4.983 fb-1
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Sideband method
8
yuncertaint lstatistica N assumed isit then y,uncertaint lstatistica N If
sidebands. in the events data of # total theis N
data, from estimatedregion signal in the events background of # theis N where
,1 N
1 oferror relative a and
,1 N N
yuncertaint lstatistica N assumed isit then y,uncertaint lstatistica N if
, N assumed isit then 0, N if
MC. by the prediced as regions sideband and signal in the events theare N and N where
,N
N
region. signal in theon contributi background theestimate toused is method sidebandA
BGSRBGSR
DataSB
BGSR
DataSB
DataSBBGSR
SRSR
SRSB
SBSR
SB
SR
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# of events at 7TeV & 4.753fb-1
9
mmmmMass of H++
(GeV)In signal region
(MC background)In signal region
by sideband method
In signal region(Data)
150 0.879±0.019
1.50±0.18±0.27
0
170 0.855±0.017
1.46±0.18±0.26
0
200 0.486±0.013
0.815±0.098±0.144
0
250 0.296±0.010
0.491±0.059±0.087
0
300 0.118±0.006
0.194±0.024±0.034
0
350 0.109±0.006
0.179±0.023±0.032
0
400 0.072±0.005
0.118±0.016±0.021
0
500 0.025±0.003
0.040±0.007±0.007
0
nlep+>=2, nlep->=2, relIso<0.5, m(H±±)>10, in signal region (5σ)
± statistical error ± α error ± relative error
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# of events at 7TeV & 4.983fb-1
10
eeeeMass of H++
(GeV)In signal region
(MC background)In signal region
by sideband method
In signal region(Data)
150 0.451±0.013
0.889±0.052 ±0.216
0
170 0.381±0.012
0.745±0.044 ±0.181
0
200 0.309±0.011
0.600±0.036 ±0.145
0
250 0.072±0.006
0.136±0.013 ±0.033
0
300 0.049±0.004
0.092±0.009 ±0.022
0
350 0.017±0.002
0.031±0.005 ±0.008
0
400 0.017±0.002
0.031±0.005 ± 0.008
0
500 0.0014±0.0007
0.0025±0.0013 ±0.0006
0
nlep+>=2, nlep->=2, relIso<0.5, m(H±±)>10, in signal region (5σ)
± statistical error ± α error ± relative error
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# of events at 7TeV & 4.983fb-1
11
ememMass of H++
(GeV)In signal region
(MC background)In signal region
by sideband method
In signal region(Data)
150 1.40±0.02
2.39±0.10 ±0.36
4.0±2.0
170 1.20±0.02
2.09±0.09 ±0.31
3.0±1.7
200 0.642±0.015
1.14±0.05 ±0.168
1.0±1.0
250 0.334±0.011
0.599±0.030 ±0.087
0
300 0.203±0.009
0.363±0.021 ±0.053
0
350 0.114±0.006
0.203±0.013 ±0.030
0
400 0.068±0.005
0.120±0.010 ±0.017
0
500 0.012±0.002
0.022±0.004 ±0.003
0
nlep+>=2, nlep->=2, relIso<0.5, m(H±±)>10, in signal region (5σ)
± statistical error ± α error ± relative error
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ABCD method
12
signal
backgound
A
C
B
D
A B C D : regionsnA nB nC nD : event counts
relIso<0.2 relIso>0.2
M4l>200
M4l<200
Background is independent for relIso & m4 :
The estimated number of background events in A :
This can be done completely without MC information-> Data driven background estimation
D
B
C
A
n
n
n
n
D
CBestA n
nnn
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# of events at 7TeV & 4.983fb-1
13
mmmmregion B region C region D region A A-estimated
data 19.0±4.4
17.0±4.1
142.0±11.9
9.0±3.0
2.3±0.8
MC 13.9±1.3
2.56±0.04
49.0±3.6
11.8±0.1
singnal(150GeV)
33.0±1.2
0 0.048±0.048
241±2
nlep+>=2, nlep->=2, m(H±±)>10
± statistical error
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# of events at 7TeV & 4.983fb-1
14
eeeeregion B region C region D region A A-estimated
data 5.0±2.2
7.0±2.6
5.0±2.2
5.0±2.2
7.0±5.2
MC 3.8±0.9
1.6±0.4
8.8±3.3
5.81±0.05
singnal(150GeV)
21.3±1.0
0 0 133±2
nlep+>=2, nlep->=2, m(H±±)>10
± statistical error
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# of events at 7TeV & 4.983fb-1
15
ememregion B region C region D region A A-estimated
data 16.0±4.0
14.0±3.7
86.0±9.3
21.0±4.6
2.6±1.0
MC 19.3±1.5
3.8±0.4
57.3±4.7
16.7±0.1
singnal(150GeV)
26.6±1.1
0 0 180±2
nlep+>=2, nlep->=2, m(H±±)>10
± statistical error
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Comparison with Mario for 4μ channel
at 7TeV & 4.753fb-1
16
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4μ & event selection(case 1)
17
• Muon selectionpT>10 GeV, |η|<2.4, global muon, good muon, hits_val>20, nstation>=1
• Preselection : nlep+>=2, nlep->=2, Mll>10 GeV
• Event selection - mass dependent cut- quad-lepton mass : M4l > cut value
- relative isolation : (IsoPttrack + IsoPtcalorimeter)/pt < cut value
- minimum one event for backgrounds
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4μ & event selection(case 2)
18
• Muon selectionpT>10 GeV, |η|<2.4, global muon, good muon, hits_val>20, nstation>=1
• Preselection : nlep+>=2, nlep->=2,
pT,1st>20 GeV, pT,2nd>10 GeV,
Mll>12 GeV,
relIsoworst + relIsonext to worst < 0.35
• Event selection - mass dependent cut- sumpt : ∑pT > 0.6mΦ + 130GeV
- mass window : [0.9mΦ ; 1.1mΦ]
- minimum one event for backgrounds
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19
# of expected eventsM(H++) H++H– to
μμμμBkg.(MC) ScL Data
150GeV 247±2
4.45±0.16
39.2 2.0±1.4
170GeV 151±1
3.19±0.16
29.9 2.0±1.4
200GeV 76.6±0.7
1.78±0.15
21.0 2±1.4
250GeV 30.4±0.3
1.02±0.15
12.4 0
300GeV 12.8±0.2
0.688±0.153
7.39 0
350GeV 6.01±0.07
0.557±0.153
4.52 0
400GeV 3.02±0.03
0.488±0.153
2.80 0
500GeV 0.849±0.013
0.415±0.153
1.06 0
preselection, sumpt, mass window (case 2)
# of expected eventspreselection, M4l, relIso (case 1)
# of expected eventsM(H++) H++H– to
μμμμBkg.(MC) ScL Data
150GeV 220±2
0.494±0.166
47.5 0
170GeV 132±2
0.477±0.166
35.0 0
200GeV 69.0±0.7
0.457±0.166
23.7 0
250GeV 28.0±0.3
0.425±0.166
13.5 0
300GeV 11.1±0.2
0.419±0.166
7.38 0
350GeV 5.15±0.08
0.416±0.166
4.31 0
400GeV 3.03±0.04
0.413±0.166
2.92 0
500GeV 0.700±0.014
0.411±0.166
0.90 0
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Exclusion limit for 4μ at 7TeV
20
Expected Limit : 385 GeVObserved Limit : 399 GeV
preselection, sumpt, mass window (case 2)preselection, M4l, relIso (case 1)
Expected Limit : 375 GeVObserved Limit : 399 GeV
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4μ & event selectionby Mario (case 3)
21
• Muon selectionpT>5 GeV, |η|<2.4, global muon, tight muon id
• Preselection : pT,1st>20 GeV, pT,2nd>10 GeV,
Mll>12 GeV,
relIsoworst + relIsonext to worst < 0.35,
sip<4
• Event selection - mass dependent cut- sumpt : ∑pT > 0.6mΦ + 130GeV
- mass window : [0.9mΦ ; 1.1mΦ]
- minimum one event for backgrounds
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22
# of expected eventsM(H++) H++H– to
μμμμBkg.(MC) ScL Data
150GeV 247±2
4.45±0.16
39.2 2.0±1.4
170GeV 151±1
3.19±0.16
29.9 2.0±1.4
200GeV 76.6±0.7
1.78±0.15
21.0 2±1.4
250GeV 30.4±0.3
1.02±0.15
12.4 0
300GeV 12.8±0.2
0.688±0.153
7.39 0
350GeV 6.01±0.07
0.557±0.153
4.52 0
400GeV 3.02±0.03
0.488±0.153
2.80 0
500GeV 0.849±0.013
0.415±0.153
1.06 0
Mario’s result at 7TeV & 4.93fb-1 (case 3)
# of expected eventspreselection, M4l, relIso (case 1)
# of expected eventsM(H++) H++H– to
μμμμBkg.(MC) ScL Data
150GeV 215±2
0.53±0.43
46.5 0
170GeV 131±2
0.51±0.43
34.5 0
200GeV 66.9±0.7
0.48±0.43
23.1 0
250GeV 26.0±0.3
0.46±0.43
12.7 0
300GeV 10.7±0.2
0.46±0.43
7.06 0
350GeV 4.87±0.08
0.46±0.43
4.05 0
400GeV 2.41±0.04
0.46±0.43
2.39 0
500GeV 0.65±0.02
0.46±0.43
0.91 0
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Exclusion limit for 4μ at 7TeV
23
Mario’s result at 7TeV & 4.93fb-1 (case 3)
Result for pair production only : 395GeV
Expected Limit : 385 GeVObserved Limit : 399 GeV
preselection, M4l, relIso (case 1)
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24
# of expected eventsM(H++) H++H– to
μμμμBkg.(MC) ScL Data
150GeV 220±2
0.494±0.166
47.5 0
170GeV 132±2
0.477±0.166
35.0 0
200GeV 69.0±0.7
0.457±0.166
23.7 0
250GeV 28.0±0.3
0.425±0.166
13.5 0
300GeV 11.1±0.2
0.419±0.166
7.38 0
350GeV 5.15±0.08
0.416±0.166
4.31 0
400GeV 3.03±0.04
0.413±0.166
2.92 0
500GeV 0.700±0.014
0.411±0.166
0.90 0
preselection, sumpt, mass window (case 2)
# of expected events
# of expected eventsM(H++) H++H– to
μμμμBkg.(MC) ScL Data
150GeV 215±2
0.53±0.43
46.5 0
170GeV 131±2
0.51±0.43
34.5 0
200GeV 66.9±0.7
0.48±0.43
23.1 0
250GeV 26.0±0.3
0.46±0.43
12.7 0
300GeV 10.7±0.2
0.46±0.43
7.06 0
350GeV 4.87±0.08
0.46±0.43
4.05 0
400GeV 2.41±0.04
0.46±0.43
2.39 0
500GeV 0.65±0.02
0.46±0.43
0.91 0
Mario’s result at 7TeV & 4.93fb-1 (case 3)
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Exclusion limit for 4μ at 7TeV
25
Mario’s result at 7TeV & 4.63fb-1 (case 3)
Result for pair production only : 395GeV
preselection, sumpt, mass window (case 2)
Expected Limit : 375 GeVObserved Limit : 399 GeV
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Comparison with Mario for 4e channel
at 7TeV & 4.983fb-1
26
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4e & event selection (case 1)
27
• Electron selectionpT>10 GeV, |η|<2.5, |dxy|<0.02, eidLoose
• Preselection : nlep+>=2, nlep->=2, Mll>10 GeV
• Event selection - mass dependent cut- quad-lepton mass : M4l > cut value
- relative isolation : (IsoPttrack + IsoPtcalorimeter)/pt < cut value
- minimum one event for backgrounds
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4e & event selection(case 2)
28
• Electron selection pT>10 GeV, |η|<2.5, |dxy|<0.02, eidLoose
• Preselection : nlep+>=2, nlep->=2,
pT,1st>20 GeV, pT,2nd>10 GeV,
Mll>12 GeV,
relIsoworst + relIsonext to worst < 0.35
• Event selection - mass dependent cut- sumpt : ∑pT > 0.6mΦ + 130GeV
- mass window : [0.9mΦ ; 1.1mΦ]
- minimum one event for backgrounds
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29
# of expected eventsM(H++) H++H– to
eeeeBkg.(MC) ScL Data
150GeV 150±2
2.67±0.18
30.6 0
170GeV 94.0±1.6
1.95±0.18
23.7 0
200GeV 48.3±0.8
1.32±0.18
16.2 0
250GeV 19.7±0.3
0.808±0.174
9.67 0
300GeV 7.88±0.17
0.607±0.174
5.39 0
350GeV 3.57±0.08
0.516±0.174
3.13 0
400GeV 1.74±0.04
0.481±0.174
1.82 0
500GeV 0.476±0.015
0.448±0.174
0.621 0
preselection, sumpt, mass window at 7TeV & 4.983fb-1
(case 2)
# of expected eventspreselection, M4l, relIso at 7TeV & 4.983fb-1 (case 1)
# of expected eventsM(H++) H++H– to
eeeeBkg.(MC) ScL Data
150GeV 132±2
0.474±0.174
35.0 0
170GeV 83.5±1.5
0.461±0.174
26.6 0
200GeV 42.5±0.8
0.455±0.174
17.5 0
250GeV 17.6±0.3
0.445±0.174
9.91 0
300GeV 7.10±0.17
0.435±0.174
5.36 0
350GeV 3.25±0.08
0.433±0.174
3.05 0
400GeV 1.89±0.05
0.431±0.174
2.01 0
500GeV 0.433±0.015
0.431±0.174
0.579 0
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Exclusion limit
30
Expected Limit : 346 GeVObserved Limit : 364 GeV
preselection, sumpt, mass window at 7TeV & 4.983fb-1 (case 2)
preselection, M4l, relIso at 7TeV & 4.983fb-1 (case 1)
Expected Limit : 341 GeVObserved Limit : 356 GeV
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4e & event selectionby Mario (case 3)
31
• Electron selectionpT>15 GeV, |η|<2.5, CiCid, ipT <2mm
• Preselection : pT,1st>20 GeV, pT,2nd>10 GeV,
Mll>12 GeV,
relIsoworst + relIsonext to worst < 0.35,
sip<4
• Event selection - mass dependent cut- sumpt : ∑pT > 0.6mΦ + 130GeV
- mass window : [0.9mΦ ; 1.1mΦ]
- minimum one event for backgrounds
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32
# of expected eventsM(H++) H++H– to
eeeeBkg.(MC) ScL Data
150GeV 150±2
2.67±0.18
30.6 2
170GeV 94.0±1.6
1.95±0.18
23.7 0
200GeV 48.3±0.8
1.32±0.18
16.2 0
250GeV 19.7±0.3
0.808±0.174
9.67 0
300GeV 7.88±0.17
0.607±0.174
5.39 0
350GeV 3.57±0.08
0.516±0.174
3.13 0
400GeV 1.74±0.04
0.481±0.174
1.82 0
500GeV 0.476±0.015
0.448±0.174
0.621 0
# of expected events
# of expected eventsM(H++) H++H– to
eeeeBkg.(MC) ScL Data
150GeV 144±2
0.50±0.43
36.7 0
170GeV 92.5±1.47
0.48±0.43
28.2 0
200GeV 47.8±0.7
0.47±0.43
18.7 0
250GeV 19.2±0.3
0.46±0.43
10.5 0
300GeV 8.10±0.17
0.46±0.43
5.82 0
350GeV 3.72±0.08
0.46±0.43
3.32 0
400GeV 1.79±0.04
0.46±0.43
1.89 0
500GeV 0.480±0.015
0.46±0.43
0.62 0
preselection, M4l, relIso at 7TeV & 4.983fb-1 (case 1) Mario’s result at 7TeV & 4.93fb-1 (case 3)
![Page 33: Search for doubly charged Higgs bosons in e- μ channel at CMS](https://reader030.vdocuments.site/reader030/viewer/2022013004/5681482b550346895db54f57/html5/thumbnails/33.jpg)
Exclusion limit for 4e at 7TeV
33
Result for pair production only : 384GeV
Expected Limit : 346 GeVObserved Limit : 364 GeV
preselection, M4l, relIso at 7TeV & 4.983fb-1 (case 1) Mario’s result at 7TeV & 4.93fb-1 (case 3)
![Page 34: Search for doubly charged Higgs bosons in e- μ channel at CMS](https://reader030.vdocuments.site/reader030/viewer/2022013004/5681482b550346895db54f57/html5/thumbnails/34.jpg)
34
# of expected eventsM(H++) H++H– to
eeeeBkg.(MC) ScL Data
150GeV 132±2
0.474±0.174
35.0 0
170GeV 83.5±1.5
0.461±0.174
26.6 0
200GeV 42.5±0.8
±0.4550.174
17.5 0
250GeV 17.6±0.3
0.445±0.174
9.91 0
300GeV 7.10±0.17
0.435±0.174
5.36 0
350GeV 3.25±0.08
0.433±0.174
3.05 0
400GeV 1.89±0.05
0.431±0.174
2.01 0
500GeV 0.433±0.015
0.431±0.174
0.579 0
# of expected events
# of expected eventsM(H++) H++H– to
eeeeBkg.(MC) ScL Data
150GeV 144±2
0.50±0.43
36.7 0
170GeV 92.5±1.47
0.48±0.43
28.2 0
200GeV 47.8±0.7
0.47±0.43
18.7 0
250GeV 19.2±0.3
0.46±0.43
10.5 0
300GeV 8.10±0.17
0.46±0.43
5.82 0
350GeV 3.72±0.08
0.46±0.43
3.32 0
400GeV 1.79±0.04
0.46±0.43
1.89 0
500GeV 0.480±0.015
0.46±0.43
0.62 0
Mario’s result at 7TeV & 4.93fb-1 (case 3)preselection, sumpt, mass window at 7TeV & 4.983fb-1
(case 2)
![Page 35: Search for doubly charged Higgs bosons in e- μ channel at CMS](https://reader030.vdocuments.site/reader030/viewer/2022013004/5681482b550346895db54f57/html5/thumbnails/35.jpg)
Exclusion limit for 4e at 7TeV
35
Expected Limit : 341 GeVObserved Limit : 356 GeV
Result for pair production only : 384GeV
Mario’s result at 7TeV & 4.93fb-1 (case 3)
preselection, sumpt, mass window at 7TeV & 4.983fb-1 (case 2)
![Page 36: Search for doubly charged Higgs bosons in e- μ channel at CMS](https://reader030.vdocuments.site/reader030/viewer/2022013004/5681482b550346895db54f57/html5/thumbnails/36.jpg)
Comparison with Mario for eμeμ channel
at 7TeV & 4.983fb-1
36
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37
# of expected eventsM(H++) H++H– to
eμeμBkg.(MC) ScL Data
150GeV 186±2
5.40±0.18
31.6 4.0±2.0
170GeV 116±2
4.02±0.18
24.1 5±2.2
200GeV 61.7±0.8
2.60±0.18
17.0 0
250GeV 25.4±0.4
1.37±0.18
10.4 0
300GeV 10.3±0.2
0.889±0.174
6.02 0
350GeV 4.77±0.08
0.657±0.174
3.66 0
400GeV 2.85±0.05
0.575±0.174
2.55 0
500GeV 0.703±0.015
0.470±0.174
0.861 0
# of expected events
# of expected eventsM(H++) H++H– to
eμeμBkg.(MC) ScL Data
150GeV 173±2
0.550±0.174
40.6 0
170GeV 106±2
0.529±0.174
30.3 0
200GeV 56.4±0.8
0.486±0.174
20.7 0
250GeV 22.7±0.4
0.454±0.174
11.7 0
300GeV 9.34±0.18
0.442±0.174
6.48 0
350GeV 4.31±0.08
0.437±0.174
3.74 0
400GeV 2.47±0.05
0.434±0.174
2.47 0
500GeV 0.605±0.015
0.431±0.174
0.779 0
preselection, sumpt, mass window at 7TeV & 4.983fb-1
(case 2)preselection, M4l, relIso at 7TeV & 4.983fb-1 (case 1)
![Page 38: Search for doubly charged Higgs bosons in e- μ channel at CMS](https://reader030.vdocuments.site/reader030/viewer/2022013004/5681482b550346895db54f57/html5/thumbnails/38.jpg)
Exclusion limit
38
preselection, sumpt, mass window at 7TeV & 4.983fb-1 (case 2)
preselection, M4l, relIso at 7TeV & 4.983fb-1 (case 1)
Expected Limit : 363 GeVObserved Limit : 381 GeV
Expected Limit : 370 GeVObserved Limit : 393 GeV
![Page 39: Search for doubly charged Higgs bosons in e- μ channel at CMS](https://reader030.vdocuments.site/reader030/viewer/2022013004/5681482b550346895db54f57/html5/thumbnails/39.jpg)
39
# of expected eventsM(H++) H++H– to
eμeμBkg.(MC) ScL Data
150GeV 186±2
5.40±0.18
31.6 4.0±2.0
170GeV 116±2
4.02±0.18
24.1 5±2.2
200GeV 61.7±0.8
2.60±0.18
17.0 0
250GeV 25.4±0.4
1.37±0.18
10.4 0
300GeV 10.3±0.2
0.889±0.174
6.02 0
350GeV 4.77±0.08
0.657±0.174
3.66 0
400GeV 2.85±0.05
0.575±0.174
2.55 0
500GeV 0.703±0.015
0.470±0.174
0.861 0
# of expected events
# of expected eventsM(H++) H++H– to
eμeμBkg.(MC) ScL Data
150GeV 176±2
0.57±0.43
40.9 0
170GeV 109±2
0.55±0.43
30.7 0
200GeV 56.9±0.8
0.50±0.43
20.8 0
250GeV 21.7±0.3
0.47±0.43
11.3 0
300GeV 9.32±0.18
0.46±0.43
6.42 0
350GeV 4.29±0.08
0.46±0.43
3.69 0
400GeV 2.01±0.04
0.46±0.43
2.07 0
500GeV 0.580±0.015
0.46±0.43
0.733 0
preselection, M4l, relIso at 7TeV & 4.983fb-1 (case 1) Mario’s result at 7TeV & 4.93fb-1 (case 3)
![Page 40: Search for doubly charged Higgs bosons in e- μ channel at CMS](https://reader030.vdocuments.site/reader030/viewer/2022013004/5681482b550346895db54f57/html5/thumbnails/40.jpg)
Exclusion limit
40
Result for pair production only : 391GeV
Expected Limit : 370 GeVObserved Limit : 393 GeV
preselection, M4l, relIso at 7TeV & 4.983fb-1 (case 1) Mario’s result at 7TeV & 4.93fb-1 (case 3)
![Page 41: Search for doubly charged Higgs bosons in e- μ channel at CMS](https://reader030.vdocuments.site/reader030/viewer/2022013004/5681482b550346895db54f57/html5/thumbnails/41.jpg)
41
# of expected eventsM(H++) H++H– to
eμeμBkg.(MC) ScL Data
150GeV 173±2
0.550±0.174
40.6 0
170GeV 106±2
0.529±0.174
30.3 0
200GeV 56.4±0.8
0.486±0.174
20.7 0
250GeV 22.7±0.4
0.454±0.174
11.7 0
300GeV 9.34±0.18
0.442±0.174
6.48 0
350GeV 4.31±0.08
0.437±0.174
3.74 0
400GeV 2.47±0.05
0.434±0.174
2.47 0
500GeV 0.605±0.015
0.431±0.174
0.779 0
# of expected events
# of expected eventsM(H++) H++H– to
eμeμBkg.(MC) ScL Data
150GeV 176±2
0.57±0.43
40.9 0
170GeV 109±2
0.55±0.43
30.7 0
200GeV 56.9±0.8
0.50±0.43
20.8 0
250GeV 21.7±0.3
0.47±0.43
11.3 0
300GeV 9.32±0.18
0.46±0.43
6.42 0
350GeV 4.29±0.08
0.46±0.43
3.69 0
400GeV 2.01±0.04
0.46±0.43
2.07 0
500GeV 0.580±0.015
0.46±0.43
0.733 0
Mario’s result at 7TeV & 4.93fb-1 (case 3)preselection, sumpt, mass window at 7TeV & 4.983fb-1
(case 2)
![Page 42: Search for doubly charged Higgs bosons in e- μ channel at CMS](https://reader030.vdocuments.site/reader030/viewer/2022013004/5681482b550346895db54f57/html5/thumbnails/42.jpg)
Exclusion limit
42
Result for pair production only : 391GeV
Expected Limit : 363 GeVObserved Limit : 381 GeV
Mario’s result at 7TeV & 4.93fb-1 (case 3)
preselection, sumpt, mass window at 7TeV & 4.983fb-1 (case 2)
![Page 43: Search for doubly charged Higgs bosons in e- μ channel at CMS](https://reader030.vdocuments.site/reader030/viewer/2022013004/5681482b550346895db54f57/html5/thumbnails/43.jpg)
Systematic uncertainties
• Trigger and primary vertex finding : 1.5%
• Signal cross section : 10~15%
• Luminosity (for signal only) : 4.5%
43
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Effect of tau
44
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45
# of events VS channel(m200)
Gen2 channels are separated by gen leptons matched 4 final reco leptons.
No cut
nlep+>=2, nlep-
>=2
nlep+>=2, nlep-
>=2nlep+>=2, nlep->=2,|mp-mn|/(mp+mn)<0.1
![Page 46: Search for doubly charged Higgs bosons in e- μ channel at CMS](https://reader030.vdocuments.site/reader030/viewer/2022013004/5681482b550346895db54f57/html5/thumbnails/46.jpg)
46
# of events VS channel(ZZJetsTo4L)
nlep+>=2, nlep-
>=2
nlep+>=2, nlep-
>=2
nlep+>=2, nlep->=2,|mp-mn|/(mp+mn)<0.1
Gen2 channels are separated by gen leptons matched 4 final reco leptons.
![Page 47: Search for doubly charged Higgs bosons in e- μ channel at CMS](https://reader030.vdocuments.site/reader030/viewer/2022013004/5681482b550346895db54f57/html5/thumbnails/47.jpg)
47
# of events VS channel(TTTo2L2Nu2B)
Gen2 channels are separated by gen leptons matched 4 final reco leptons.
nlep+>=2, nlep-
>=2
nlep+>=2, nlep-
>=2
nlep+>=2, nlep->=2,|mp-mn|/(mp+mn)<0.1
![Page 48: Search for doubly charged Higgs bosons in e- μ channel at CMS](https://reader030.vdocuments.site/reader030/viewer/2022013004/5681482b550346895db54f57/html5/thumbnails/48.jpg)
48
Cut variables(ZZJetsTo4L)
nlep+>=2, nlep-
>=2
recoch(eeee) &&gen2ch(eeee)
recoch(eeee) &&gen2ch(etet)
recoch(eeee) &&gen2ch(eeee)
recoch(eeee) &&gen2ch(etet)
![Page 49: Search for doubly charged Higgs bosons in e- μ channel at CMS](https://reader030.vdocuments.site/reader030/viewer/2022013004/5681482b550346895db54f57/html5/thumbnails/49.jpg)
49
Cut variables(m200)
nlep+>=2, nlep-
>=2
recoch(eeee) &&gen2ch(eeee)
recoch(eeee) &&gen2ch(eeee)
recoch(eeee) &&(gen2ch(eeet)||gen2ch(eett)||gen2ch(etet)||gen2ch(ettt)||gen2ch(tttt))
recoch(eeee) &&(gen2ch(eeet)||gen2ch(eett)||gen2ch(etet)||gen2ch(ettt)||gen2ch(tttt))
![Page 50: Search for doubly charged Higgs bosons in e- μ channel at CMS](https://reader030.vdocuments.site/reader030/viewer/2022013004/5681482b550346895db54f57/html5/thumbnails/50.jpg)
effciencygen2ch recoch
M(H++)presel presel &&
|mp-mn|/(mp+mn)<0.1
presel&&
m4>300
presel && |mp-mn|/
(mp+mn)<0.1&& m4>300
etet
eeee
150GeV 0.727%
0.279% 0.388% 0.170%
300GeV 1.09% 0.239% 1.02% 0.205%
500GeV 1.63% 0.260% 1.63% 0.260%
ZZJetsTo4L
0.085%
0.0155% 0.0067%
0.00084%
eeem
150GeV 1.61% 0.569% 0.788% 0.303%
300GeV 2.42% 0.820% 2.36% 0.820%
500GeV 1.82% 0.390% 1.82% 0.390%
ZZJetsTo4L
0.204%
0.0376% 0.0166%
0.00304%
emem
150GeV 0.933%
0.424% 0.594% 0.303%
300GeV 1.16% 0.307% 1.13% 0.307%
500GeV 2.54% 0.975% 2.54% 0.975%
ZZJetsTo4L
0.113%
0.0212% 0.0079%
0.00076% 50
Cut efficiency
![Page 51: Search for doubly charged Higgs bosons in e- μ channel at CMS](https://reader030.vdocuments.site/reader030/viewer/2022013004/5681482b550346895db54f57/html5/thumbnails/51.jpg)
effciencygen2ch recoch
M(H++)presel presel &&
|mp-mn|/(mp+mn)<0.1
presel&&
m4>300
presel && |mp-mn|/
(mp+mn)<0.1&& m4>300
mtmt
mmmm
150GeV 1.11% 0.341% 0.584% 0.195%
300GeV 1.53% 0.477% 1.40% 0.443%
500GeV 2.34% 0.895% 2.34% 0.895%
ZZJetsTo4L
0.134%
0.0244% 0.0116%
0.00143%
emmm
150GeV 2.24% 1.06% 1.17% 0.669%
300GeV 3.37% 1.19% 3.17% 1.19%
500GeV 4.06% 1.10% 4.06% 1.10%
ZZJetsTo4L
0.246%
0.0490% 0.0201%
0.00270%
emem
150GeV 1.08% 0.389% 0.547% 0.182%
300GeV 0.988%
0.409% 0.954% 0.409%
500GeV 1.10% 0.344% 1.10% 0.344%
ZZJetsTo4L
0.113%
0.0199% 0.0109%
0.00135%51
Cut efficiency
![Page 52: Search for doubly charged Higgs bosons in e- μ channel at CMS](https://reader030.vdocuments.site/reader030/viewer/2022013004/5681482b550346895db54f57/html5/thumbnails/52.jpg)
Analysis at 8TeV & 5.098 fb-
1
52
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Used samples/TTTo2L2Nu2B_8TeV-powheg-pythia6/jslee-v1-Summer12_TTTo2L2Nu2B-f16eeefb6ffa56020dc09a3f8c0db443/USER/ZZJetsTo4L_TuneZ2star_8TeV-madgraph-tauola/jslee-v1-Summer12_ZZJetsTo4L-f16eeefb6ffa56020dc09a3f8c0db443/USER/ZZJetsTo2L2Q_TuneZ2star_8TeV-madgraph-tauola/jslee-v1-Summer12_ZZJetsTo2L2Q-f16eeefb6ffa56020dc09a3f8c0db443/
USER/WZJetsTo3LNu_TuneZ2_8TeV-madgraph-tauola/jslee-v1-Summer12_WZJetsTo3LNu-f16eeefb6ffa56020dc09a3f8c0db443/
USER/WWJetsTo2L2Nu_TuneZ2star_8TeV-madgraph-tauola/jslee-v1-Summer12_WWJetsTo2L2Nu-
f16eeefb6ffa56020dc09a3f8c0db443/USER/DYJetsToLL_M-50_TuneZ2Star_8TeV-madgraph-tarball/jslee-v1-Summer12_DYJetsToLL_M-50-
f16eeefb6ffa56020dc09a3f8c0db443/USER/DYJetsToLL_M-10To50filter_8TeV-madgraph/jslee-v1-Summer12_DYJetsToLL_M-10To50-
f16eeefb6ffa56020dc09a3f8c0db443/USER/T_tW-channel-DR_TuneZ2star_8TeV-powheg-tauola/jslee-v1-Summer12_T_tW-channel-
f16eeefb6ffa56020dc09a3f8c0db443/USER/T_s-channel_TuneZ2star_8TeV-powheg-tauola/jslee-v1-Summer12_T_s-channel-f16eeefb6ffa56020dc09a3f8c0db443/USER/Tbar_tW-channel-DR_TuneZ2star_8TeV-powheg-tauola/jslee-v1-Summer12_Tbar_tW-channel-
f16eeefb6ffa56020dc09a3f8c0db443/USER/Tbar_t-channel_TuneZ2star_8TeV-powheg-tauola/jslee-v1-Summer12_Tbar_t-channel-f16eeefb6ffa56020dc09a3f8c0db443/
USER
/DoubleMu/jslee-v1-Summer12_DoubleMu_Run2012A_PromptReco_v1-0c6dd9aa6d8f92e3c92cf94d77ab8809/USER/DoubleMu/jslee-v1-Summer12_DoubleMu_Run2012B_PromptReco_v1-0c6dd9aa6d8f92e3c92cf94d77ab8809/USER/DoubleElectron/jslee-v1-Summer12_DoubleElectron_Run2012A_PromptReco_v1-cbcf422786c4af5101f9b073742156b8/USER/DoubleElectron/jslee-v1-Summer12_DoubleElectron_Run2012B_PromptReco_v1-cbcf422786c4af5101f9b073742156b8/USER
Cross sections : https://twiki.cern.ch/twiki/bin/viewauth/CMS/HZZSamples8TeV
53
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HLT efficiencies(Nhlt/Ngen)
54
• Used paths (8TeV):HLT_Mu17_Mu8HLT_Ele17_Ele8HLT_Mu8_Ele17HLT_Mu17_Ele8
• Used paths (7TeV):HLT_DoubleMu7HLT_Mu13_Mu8HLT_Mu17_Mu8HLT_Ele17_Ele8HLT_Mu8_Ele17HLT_Mu17_Ele8
![Page 55: Search for doubly charged Higgs bosons in e- μ channel at CMS](https://reader030.vdocuments.site/reader030/viewer/2022013004/5681482b550346895db54f57/html5/thumbnails/55.jpg)
Skim efficiencies(Nskim/Nhlt)
55
• Skim conditions :firstpt>15 GeV && secondpt>10 GeVfor e, μ
![Page 56: Search for doubly charged Higgs bosons in e- μ channel at CMS](https://reader030.vdocuments.site/reader030/viewer/2022013004/5681482b550346895db54f57/html5/thumbnails/56.jpg)
Primary vertex
56
# of vertices8TeV, 5.098 fb-1
normalized chi2
8TeV, 5.098 fb-1
nlep>=2, relIso<0.2
# of vertices7TeV, 4.983 fb-1
normalized chi2
7TeV, 4.983 fb-1
![Page 57: Search for doubly charged Higgs bosons in e- μ channel at CMS](https://reader030.vdocuments.site/reader030/viewer/2022013004/5681482b550346895db54f57/html5/thumbnails/57.jpg)
# of events at 8TeV & 5.098fb-1
57
nlep+>=2, nlep->=2, relIso<0.5, m(H±±)>10
Channel background(MC)
Data
mmmm 19.4±2.8
58.0±7.6
eeee 68.8±6.4
85.0±9.2
emem 105.3±7.7
145.0±12.0
nlep+>=2, nlep->=2, relIso<0.5, m(H±±)>10, M4l>100
Channel background(MC)
Data
mmmm 16.5±2.6
25.0±5.0
eeee 60.2±6.0
61.0±7.8
emem 85.0±6.9
77.0±8.8
![Page 58: Search for doubly charged Higgs bosons in e- μ channel at CMS](https://reader030.vdocuments.site/reader030/viewer/2022013004/5681482b550346895db54f57/html5/thumbnails/58.jpg)
# of events at 8TeV & 5.098fb-1
58
mmmmMass of H++
(GeV)In signal region
(MC background)In signal region
by sideband method
In signal region(Data)
150 3.87±0.03
15.0±0.7
9.0±3
nlep+>=2, nlep->=2, m(H±±)>10, in signal region (relIso<0.2 && M4l >200)
± statistical error ± relative error
mmmmMass of H++
(GeV)In signal region
(MC background)In signal region
by sideband method
In signal region(Data)
150 5.76±1.60
22.4±1.0
12.0±3.5
nlep+>=2, nlep->=2, m(H±±)>10, in signal region (relIso<0.2 && |mp-mn|/(mp+mn)<0.2)
mmmmMass of H++
(GeV)In signal region
(MC background)In signal region
by sideband method
In signal region(Data)
150 4.69±1.60
18.4±0.8
5.0±2.2
nlep+>=2, nlep->=2, m(H±±)>10, in signal region (relIso<0.2 && |mp-mn|/(mp+mn)<0.1)
![Page 59: Search for doubly charged Higgs bosons in e- μ channel at CMS](https://reader030.vdocuments.site/reader030/viewer/2022013004/5681482b550346895db54f57/html5/thumbnails/59.jpg)
Mμμ
59
nm>=2, pt>10, |η|<2.4, global, good, mu_hits_val>20, mu_nstation>0, relIso<0.2, 60<Mμμ<120
lumi : 5.098 fb-1
cross section of DY: 3533 fb
lumi : 3.496 fb-1
cross section of DY : 3533 fb
lumi : 3.496 fb-1
cross section of DYfor 60<Mll<120 : 3352 fb
Standard model cross sections for CMS at 8TeV : https://twiki.cern.ch/twiki/bin/viewauth/CMS/StandardModelCrossSectionsat8TeV
![Page 60: Search for doubly charged Higgs bosons in e- μ channel at CMS](https://reader030.vdocuments.site/reader030/viewer/2022013004/5681482b550346895db54f57/html5/thumbnails/60.jpg)
Muon cut variables
60
nm>=2, pt>10, |η|<2.4, global, good, nhits_val>20, nchi2<10, nsation>=1, relIso<0.2, 60<Mμμ<120
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Mee
61
ne>=2, pt>10, |η|<2.5, charge consistent, eidLoose, relIso<0.2, 60<Mμμ<120
lumi : 5.098 fb-1
cross section of DY: 3533 fb
lumi : 1.712 fb-1
cross section of DY : 3533 fb
lumi : 1.712 fb-1
cross section of DYfor 60<Mll<120 : 3352 fb
Standard model cross sections for CMS at 8TeV : https://twiki.cern.ch/twiki/bin/viewauth/CMS/StandardModelCrossSectionsat8TeV
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Electron cut variables
62
ne>=2, pt>10, |η|<2.5, charge consistent, eidLoose, relIso<0.2, 60<Mμμ<120
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Summary
• No signal excess is observed.
• 95% Confidence Level lower limits are set on the H++ mass of 364GeV in the eeee channel, of 393GeV in the eμeμ, of 399GeV in the μμμμ at 7TeV.
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64
Plan per month
13.2 13.3 13.4 13.5 13.6 13.7 13.8
2012 data pat sample production
8TeV signal sampleproduction
MC VS 2012 data with Z->ll
Lepton ID study
Pileup study
Systematic Study
Paper writing
Defense
Plan
?
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backup
65
• Primary vertex
• Cut variables for event selection
• Gen matching effciency for leptons
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Primary vertex
66
z position8TeV, 5.098 fb-1
rho position8TeV, 5.098 fb-1
nlep>=2, relIso<0.2
z position7TeV, 4.983 fb-1
rho position7TeV, 4.983 fb-1
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Cut variables for event selection(mmmm)
67
8TeV, 5.098 fb-1
8TeV, 5.098 fb-1
7TeV, 4.983 fb-1
7TeV, 4.983 fb-1
nlep+>=2, nlep->=2, relIso<0.5, m(H±±)>10
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68
8TeV, 5.098 fb-1
8TeV, 5.098 fb-1
7TeV, 4.983 fb-1
7TeV, 4.983 fb-1
nlep+>=2, nlep->=2, relIso<0.5, m(H±±)>10
Cut variables for event selection(mmmm)
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69
8TeV, 5.098 fb-1
8TeV, 5.098 fb-1
7TeV, 4.983 fb-1
7TeV, 4.983 fb-1
nlep+>=2, nlep->=2, relIso<0.5, m(H±±)>10
Cut variables for event selection(eeee)
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70
8TeV, 5.098 fb-1
8TeV, 5.098 fb-1
7TeV, 4.983 fb-1
7TeV, 4.983 fb-1
nlep+>=2, nlep->=2, relIso<0.5, m(H±±)>10
Cut variables for event selection(eeee)
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71
8TeV, 5.098 fb-1
8TeV, 5.098 fb-1
7TeV, 4.983 fb-1
7TeV, 4.983 fb-1
nlep+>=2, nlep->=2, relIso<0.5, m(H±±)>10
Cut variables for event selection(emem)
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72
8TeV, 5.098 fb-1
8TeV, 5.098 fb-1
7TeV, 4.983 fb-1
7TeV, 4.983 fb-1
nlep+>=2, nlep->=2, relIso<0.5, m(H±±)>10
Cut variables for event selection(emem)
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Minimum one MC background event after cuts from Mario
• This comes from MC uncertainty.
• Basically it shows the upper bound on what amount of events could have survived if you had done more MC so the number comes from limiting MC.
• You cannot claim that you'd see 0 background.
• You overestimate the background strongly and your observed limit would drop far below -2 sigma.
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74
eeee
M(H++)gench(eeee)
&& recoch(eeee)
gench(eeee)&&
recoch(eeee)&&gen2ch(eee
e)
effciency
150GeV
3832 3816 99.6%
250GeV
2317 2306 99.5%
350GeV
1495 1490 99.7%
500GeV
718 718 100%
Channel matching at 7TeV
mmmm
M(H++)gench(mmmm
)&&
recoch(mmmm)
gench(mmmm)&&
recoch(mmmm)&&gen2ch(mmm
m)
effciency
150GeV
5717 5715 99.9%
250GeV
3318 3316 99.9%
350GeV
2184 2183 99.9%
500GeV
1180 1179 99.9%emem
M(H++)gench(emem)
&& recoch(emem)
gench(emem)&&
recoch(emem)&&gen2ch(eme
m)
effciency
150GeV
4539 4520 99.6%
250GeV
2599 2593 99.8%
350GeV
1753 1751 99.9%
500GeV
957 956 99.9%
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Genmatching effciency for leptons at 8TeV
75
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Electron cut variables
76
without gen matchingwith gen matching(ΔR<0.01, charge)
8TeV, m200 // pt>10, |η|<2.5
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Electron cut variables
77
without gen matchingwith gen matching(ΔR<0.01, charge)
8TeV, m200 // pt>10, |η|<2.5
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Electron cut variables
78
without gen matchingwith gen matching(ΔR<0.01, charge)
8TeV, m200 // pt>10, |η|<2.5
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Electron cut variables
79
without gen matchingwith gen matching(ΔR<0.01, charge)
8TeV, m200 // pt>10, |η|<2.5, chargeok, |d0|<0.02, eidLoose, nchi2<10, sip<4, relIso<0.2
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Electron cut variables
80
without gen matchingwith gen matching(ΔR<0.01, charge)
8TeV, m200 // pt>10, |η|<2.5, chargeok, |d0|<0.02, eidLoose, nchi2<10, sip<4, relIso<0.2
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Electron cut variables
81
without gen matchingwith gen matching(ΔR<0.01, charge)
8TeV, m200 // pt>10, |η|<2.5, chargeok, |d0|<0.02, eidLoose, nchi2<10, sip<4, relIso<0.2
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Muon cut variables
82
without gen matchingwith gen matching(ΔR<0.01, charge)
8TeV, m200 // pt>10, |η|<2.5, global muons
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Muon cut variables
83
without gen matchingwith gen matching(ΔR<0.01, charge)
8TeV, m200 // pt>10, |η|<2.5, global muons
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Muon cut variables
84
without gen matchingwith gen matching(ΔR<0.01, charge)
8TeV, m200 // pt>10, |η|<2.4, global muons
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Muon cut variables
85
without gen matchingwith gen matching(ΔR<0.01, charge)
8TeV, m200 // pt>10, |η|<2.4, global muons, good muons, nchi2<10, nhits_val>20, nstation>=1, relIso<0.2
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Muon cut variables
86
without gen matchingwith gen matching(ΔR<0.01, charge)
8TeV, m200 // pt>10, |η|<2.4, global muons, good muons, nchi2<10, nhits_val>20, nstation>=1, relIso<0.2
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Muon cut variables
87
without gen matchingwith gen matching(ΔR<0.01, charge)
8TeV, m200 // pt>10, |η|<2.4, global muons, good muons, nchi2<10, nhits_val>20, nstation>=1, relIso<0.2