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