= The first !MadAnalysis 5 workshop on LHC recasting @ Korea = = Analysis 5: CMS-EXO16-052 = ||= Students =|| Jeon Dajeong (djeon@cern.ch) , Kim Seulgi (pikachu602@naver.com), Lee Sang Man(daniel.s.lee4@gmail.com), Watson Ian James (ian.james.watson@cern.ch) || ||= Supervisor(s) =|| Sam Bein, Jory Sonneveld || == 1. Analysis summary == 2l+MET == 2. Analysis global information == * CMS contact person: Nicholas Charles Smith * Center of mass energy: 13 TeV * Integrated luminosity: 35.9 fb−1 * Link to arXiv: none * Link to the collaboration page: http://cms-results.web.cern.ch/cms-results/public-results/preliminary-results/EXO-16-052/ * Link to CDS: http://cds.cern.ch/record/2264690?ln=en * Link to Inspire: http://inspirehep.net/record/1599663 * Other useful links... https://github.com/cms-sw/genproductions/tree/master/python/ThirteenTeV == 3. Selection description == === 3.1 Trigger selection === PS: This part cannot usually be described by the fast-simulation of detector. === 3.2 Object definition === Electrons * p_{T} > 20 GeV, |eta| < 2.4 * Medium ID - for Z Muons * p_{T} > 20 GeV, |eta| < 2.4 * Loose ID * PFiso04 < 0.15 Jets * p_{T} > 20 GeV, |eta| < 5 (PFloose ID) * Identified leptons in {delta}R < 0.4 disregarded * We categorize the selected events based on the number of selected jets with 343 pT > 30 GeV for the corresponding requirements b-jets * pT > 20 GeV, |eta| < 2.4 * CSVv2>0.8484 (medium) Taus * p_{T} > 18 GeV, |eta| < 2.3 * DecayModeFinding * Loose isolation < 5GeV MET * Type-1 corrections are applied ? === 3.3 Cut-flow chart === Event Selection: * Two same flavored lepton with opposite electric charge ( that pass lepton selection?) * el[0] pt > 25 and el[1] pt >20 * mu[0] pt > 20 and mu[1] pt > 20 * dilep m = 91.1876( +- 0.0021) +- 15 * dilep pt > 60 * events having more than one jet with pT > 30 GeV - remove * b-tagged jet Veto : at least one bjet pt > 20, |eta| < 2.4 - remove * if el[2 onwards] pt > 10 -remove * if mu[2 onwards] pt > 5 -remove * if tau pt >18 - remove Optimization: * For each possible set of selections the full analysis, including the estimation of backgrounds from control samples in data and the systematic uncertainties, is repeated. After optimization: * MET > 100 * Delta phi ( dilep.pt , ptmiss) > 2.6 rad * |MET - dilep.pt| / dilep.pt < 0.4 If event has one jet: * Delta phi (jet.pt , ptmiss ) > 0.5 * Delta R(ll) < 1.8 === 3.4 Definition of exotic observables === Like SUSY transverse observable. Notice that classical MT2 & MT2W are encoded within the !MadAnalysis framework. == 3. Detector simulation == Can we use the last release of the Delphes package with the CMS/ATLAS MA5tune-card? or do need to improve the simulation? == 4. Validation material == === 4.1 Monte-Carlo samples === 1. LO/NLO? LO 2. Model used: 1) dark matter production in a simplified model with a spin-1 mediator A 2) dark matter production in a simplified model with a spin-0 mediator phi 3. MC generator program (name + version): MAD-GRAPH5_aMC@NLO 2.2.2 4. Shower program (name + version): PYTHIA 8.205 5. Tune of Pythia: CUETP8M1 + The coupling g(kai) is set to one. For 0.25 < g(q) < 1.0, the width ranges 1-5% of the mediator mass for g(q) = 0.25, 30-50% of the mediator mass for g(q) = 1.00 ----------------------------------------------------------- Events for ADD extra-dimension scenario LO, EFT implementaion in PYTHIA 8 M(D) = 1, 2 and 3 TeV, each with n = 2, 3, 4, 5, 6, 7 ----------------------------------------------------------- The events for the unparticle model LO, PYTHIA 8, tune CUETP8M1 assuming cutoff scale ㅅ(U) =15TeV ----------------------------------------------------------- ZH & gluon-gluon fusion = WZ & ZZ processes === 4.2 Reference plots / cut-flows === * http://cms-results.web.cern.ch/cms-results/public-results/preliminary-results/EXO-16-052/CMS-PAS-EXO-16-052_Table_004.png == 4. Validation results == == 5. Reinterpretation (optional) == == 6. Questions / issues ==