CBM Progress Report 2020 link
PhD Award of the CBM Collaboration
At the 35th CBM Collaboration Meeting, which has been held virtually on March 23-27, 2020, the CBM Thesis Prize for outstanding theses in 2018 and 2019 has been awarded to Dr. Hanna Malygina (University of Frankfurt) and Dr. Ievgenii Kres (University of Wuppertal), respectively. The awards are endowed with a prize money of 500 Euros.
Hanna’s work, titled “Hit reconstruction for the Silicon Tracking System of the CBM experiment” is instrumental for the development of hit reconstruction algorithms for tracks passing through the silicon tracking detector planes. For an efficient detector design and reconstruction performance, a reliable detector response model is of utmost importance. Within her thesis, such a response model was designed and implemented in the CBM software framework. The model includes non-uniform energy loss of an incident particle within a sensor, electric field of a planar p-n junction, Lorentz shift of the charge carriers, their diffusion, and the influence of parasitic capacitances. As of now, Hanna’s model is the basic input for the STS track reconstruction simulations.
The title of Ievgenii’s thesis is „Optimization of the CBM-RICH detector geometry and its use for the reconstruction of neutral mesons using conversion method”. In his work, he developed an optimized geometry for the RICH focal plane in going from a wing-shaped to a cylindrical geometry. He was able to show that the new geometry not only allowed for an improved arrangement of the multi-anode photomultiplier tubes avoiding dead space but also resulted in an improved performance with respect to di-lepton identification. In a second part of his thesis, he successfully investigated the capabilities of the RICH detector, using the new geometry as a test case, to reconstruct π0 and η-mesons using the conversion method. In summary, it can be stated that Ievgenii has significantly advanced the RICH project, evidenced be the fact that the cylindrical geometry became the default setup.
CBM collaboration supported by the EU project CREMLINplus with 5.8 million euros for joint activities with NICA
Within the new EU project CREMLINplus (Connecting Russian and European Measures for Large-scale Research Infrastructures - plus), the European Commission is providing 25 million euros for scientific cooperation between European research infrastructures - in particular the projects of the European Strategy Forum for Research Infrastructures (ESFRI) and the mega science projects in Russia. Based on the long-term cooperation of GSI with the Joint Institute for Nuclear Research (JINR) in Dubna in the large-scale projects of FAIR (Facility for Antiproton and Ion Research) and NICA (Nuclotron-based Ion Collider facility), projects beneficial both for the CBM experiment and for the NICA experiments are funded with 4.6 million euros. These activities include the joint development of silicon track detectors, the design of ultra-fast, self-triggered data acquisition systems, the development of software packages for online event selection and data analysis, as well as the construction of target chambers, extremely thin beam pipes and calorimeters for event characterization. CBM groups also participate in another work package of CREMLINplus, which is devoted to the development of the next generation of ultra-thin silicon pixel sensors (MAPS - Monolithic Active Pixel Sensors, and is funded by 1.2 million euro. The CREMLINplus project started in February 2020, and supports over a period of four years twelve institutes of the CBM collaboration from seven countries.
In addition to the cooperation between CBM and NICA, CREMLINplus also supports the cooperation of European research infrastructures in the field of neutron research, research with synchrotron beams and lasers, as well as in particle physics with the respective Russian megascience projects (PIK, USSR, EXCELS and SCT).
Million Euro agreement for research signed between GSI and JINR
|Signature ceremony of the cooperation agreement between JINR and GSI|
Intensifying research cooperation, strengthening cutting-edge research and promoting young researchers – these are some of the key goals of the "German-Russian Roadmap for Cooperation in Education, Science, Research and Innovation", which Germany and Russia agreed in December 2018. An important step in this context was the signing of an agreement between the GSI Helmholtzzentrum für Schwerionenforschung and the Joint Institute for Nuclear Research (JINR).
The main goal of the German-Russian Roadmap is to expand cooperation at major research infrastructures in Russia. One of the projects is the instrumentation and scientific usage of the future accelerator complex NICA (Nuclotron-based Ion Collider fAcility), currently being built in Dubna at JINR. The German contributions to this cooperation are financed by the Federal Ministry of Education and Research (BMBF) and handled by GSI. For this purpose, a cooperation agreement between JINR and GSI has been worked out, which has a total volume of about 20 million Euros. It was signed in early February in Moscow during the "Helmholtz Winter Talks 2020", a traditional event for the exchange of views between decision-makers from politics, science and society in Russia and Germany.
The agreement on technical cooperation between GSI and JINR consists of several subprojects: coordination and technical follow-up, stochastic cooling for the NICA collider, silicon tracking system for the NICA experiment BM@N as well as read-out electronics and data acquisition for this experiment, research and development for the superconducting high intensity ion injector Linacs@JINR and finally beam diagnostics and LLRF electronics for linear accelerators.
Detailed working packages have been proposed in an application, which is under evaluation by the BMBF. A substantial part of the funding is requested for the construction of the Silicon tracking system, its read out-electronics, and the data acquisition system. These subprojects have a large synergy potential both for the BM@N experiment at NICA, and for the CBM experiment at FAIR.