Changes between Version 14 and Version 15 of MA5LongLivedParticle
- Timestamp:
- Oct 20, 2017, 3:57:01 PM (7 years ago)
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MA5LongLivedParticle
v14 v15 16 16 Delphes-LLP package is a special improvement of the Delphes package. Associated to !MadAnalysis 5 v1.6, it allows the user to perform phenomenological investigations with long-lived particles or to recast existed analysis devoted to this kind of signature. 17 17 18 Current status: the package handles neutral LLPs which decay into leptons in the first layers of the CMS tracker (such as neutralino in the framework of RPV-SUSY). 18 Current status: the package handles neutral LLPs which decay into leptons in the first layers of the CMS tracker (such as neutralino in the framework of RPV-SUSY). Realistic efficiency is applied to the tracks and D0 parameter is accessible in !MadAnalysis 5. 19 19 20 20 Package[update 2017/08/25]: [http://madanalysis.irmp.ucl.ac.be/raw-attachment/wiki/Korea00-AnalysisList/ma5track_v1.6.tgz ma5track_v1.6.tgz] … … 45 45 * Center of mass energy: 13 TeV 46 46 * Integrated luminosity: 2.6 fb^-1 47 * A search for new long-lived particles decaying to electrons and muons is presented using data from proton-proton collisions produced in 2015 by the LHC. Events are selected with an electron and muon48 that both have transverse impact parameter values between 200 μm and 10 cm. Since no significant excess is observed, limits are set on the Displaced Supersymmetry model, with pair production of top49 squarks decaying into an e-μ final state via R-parity-violating interactions. The results are the most restrictive to date on this model.47 * Summary: A search for new long-lived particles decaying to electrons and muons is presented using data from proton-proton collisions produced in 2015 by the LHC. Events are selected with an 48 electron and muon that both have transverse impact parameter values between 200 μm and 10 cm. Since no significant excess is observed, limits are set on the Displaced Supersymmetry model, 49 with pair production of top squarks decaying into an e-μ final state via R-parity-violating interactions. The results are the most restrictive to date on this model. 50 50 * Link to the collaboration page: http://cms-results.web.cern.ch/cms-results/public-results/preliminary-results/EXO-16-022/ 51 51 * Link to CDS: https://cds.cern.ch/record/2205146?ln=fr … … 55 55 == Ongoing development == 56 56 57 * Next development: the package will handle charged LLPs which decay into leptons in the first layers of the CMS tracker (such as neutralino in the framework of RPV-SUSY). To reach this goal, the magnetic field of the detector must be applied to the charged LLP before decaying. This effect will be described by the MA5LLParticlePropagator module. 57 58 58