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Main Participants: Bobby Scurlock, Darin Acosta, Rick Cavanaugh Benchmark point LM-1 SUSY scale ~ 600 GeV Rich in staus taus. Leptons + Jets + MET L1/HLT lepton trigger path Physics-TDR Full Analysis for JetMET Estimate discovery potential - PowerPoint PPT Presentation
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Inclusive mSUGRA Analysis at UF
• Main Participants:– Bobby Scurlock,
Darin Acosta, Rick Cavanaugh
• Benchmark point LM-1– SUSY scale ~ 600 GeV– Rich in staus taus
• Leptons + Jets + MET– L1/HLT lepton trigger path
• Physics-TDR Full Analysis for JetMET– Estimate discovery potential– Provide detailed study of
systematics • Main SM backgrounds
– QCD, ttbar, W/Z+jets
Total SM BkgLM-1 Signal
L = 10 fb-1
HLT Applied
MET [GeV]
Ev
en
ts
M1/2 [GeV]
M0 [
GeV
]
LM-1
JetMET Reconstruction andmSUGRA Systematics
• Important to understand JetMET Energy Scale
• Vary JetMET Energy Scale• ET
JetMET ETJetMET + ·ET
JetMET
• Study change in number of events passing cuts
Standard ModelmSUGRA LM-1
Cu
mu
lati
ve N
um
. E
ven
ts P
assi
ng
Cu
t
Cut on MET [GeV]
Rapidly falls: - B / MET large
Flatter:S / MET small
0
-5k
5k
-10k
10k
(%)
Additional BKG
Additional Signal
Experience doing Analysis in the US
• Access to CMS MC Datasets much improved over the last year– All work accomplished solely on US Computing Facilities
• Tier-1 and Tier2– FNAL Tier-1 CMS User Analysis Facility
• Excellent access to both interactive logins and batch queues– helps to avoid the overhead of immature “Grid” tools
• Primarily used for JetMET Datasets– QCD, ttbar, W+jets, Z+jets, WW/ZZ/ZW+jets, etc
• In the past, UAF data access sometimes difficult or batch system overloaded– More resources, better data handling much better access now!
– UF Tier-2• Significant effort to
– locate important datasets (mSUGRA, QCD, etc) at Florida– install and maintain CMS software in Florida
• Ability to work at the UF Tier-2 has proven mission critical to meeting deadlines
• Overall, support for analysis in the US has been adequate to good and is significantly improving with time
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