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MadAnalysis Recast Code for Dark Matter Production in Association with Bottom Quarks

The CMS-B2G-15-007 analysis was carried out to investigate the $pp\rightarrow bb+DM$ process, which is a candidate process of direct Dark Matter production. In this particular work, this process is simulated and analyzed for 13 TeV LHC experiment using MadGraph, Pythia 8 and MadAnalysis C++ API. The...

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Detalles Bibliográficos
Autor principal: Biswas, Diptaparna
Lenguaje:eng
Publicado: 2017
Materias:
Acceso en línea:http://cds.cern.ch/record/2259788
Descripción
Sumario:The CMS-B2G-15-007 analysis was carried out to investigate the $pp\rightarrow bb+DM$ process, which is a candidate process of direct Dark Matter production. In this particular work, this process is simulated and analyzed for 13 TeV LHC experiment using MadGraph, Pythia 8 and MadAnalysis C++ API. The recast code is written to reproduce the results obtained by the experimentalists in CMS-B2G-15-007 analysis. The result is interpreted within simplified scalar model in terms of the coupling between the mediator and the DM candidate and evaluated based on the MET distribution. CMS-B2G-15-007 uses a dataset of $2.17fb^{-1}$ of data collected by the CMS experiment in $\sqrt{s}=13TeV$ proton-proton collisions at LHC. This analysis is sensitive also to DM production processes in association with top quarks. Results are reported as upper limits on the cross section for the b quark and top quark associated production independently, and interpreted within simplified models in terms of the coupling between the mediator and the DM candidate, for different mediator and DM candidate masses. In this particular recasting the mediator mass is chosen to be $100GeV$ and the DM candidate is chosen to be $1GeV$ .