Abstract
The experiment will be carried out at the future FAIR facility, it will be a fixed target experiment, where antiproton beams, of unprecedented quality and intensity, will be used to study interactions on protons and on nuclei. will be an excellent tool to investigate those final states which include short-lived particles. Since different charmonium states can be accessed in direct formation with all the available quantum numbers in p̄p annihilations, the charmonium spectroscopy is one of the main goal of the experiment.The experiment represents a unique possibility to improve both statistics and precision of existing data and to further explore the physics in the charm quark sector. Indeed, an energy scan with high precision over the full charm spectrum is still missing and it will not be delivered by future experiments currently planned as upgrade of the existing facilities. A detailed description of the possibility to reconstruct the ψ(4040) → D*+D*− at , together with the study of the huge hadronic background suppression will be presented. The importance of the Micro-Vertex Detector for the reconstruction of D mesons decay will be showed.
Highlights
The PANDA (AntiProton Annihilation at DArmstadt) experiment is one of the projects at the future Facility for Antiproton and Ion Research (FAIR) which is currently under construction as an extension of the existing GSI Laboratory (Helmholtzzentrum fur Schwerionenforschung)
Analysis Strategy and Results The analysis method presented in this work has been developed and tuned within the PandaRoot and the FairRoot packages, April-2013
In order to take into account the detector resolution, limits on the particle momenta were set considering a range of 2σ on the momentum variable, and a tolerance interval of 10% on the angular distributions
Summary
The PANDA (AntiProton Annihilation at DArmstadt) experiment is one of the projects at the future Facility for Antiproton and Ion Research (FAIR) which is currently under construction as an extension of the existing GSI Laboratory (Helmholtzzentrum fur Schwerionenforschung). In particular the reaction pp → DD is a benchmark channel to test the capability of background suppression. Since channels with short-lived particles in the final state will be studied, an optimal secondary vertices reconstruction is required.
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