Gosinformsnauk summarized the first year of work of the problem key laboratory of high energy physics.
On April 17, a meeting of the Scientific Council of the Problematic Key Laboratory for High Energy Physics (hereinafter referred to as the Key Laboratory), which was established on the initiative of the State Informnauka in 2013 with the aim of promoting the further development of international scientific and technical cooperation between Ukraine and the European Organization for Nuclear Research (CERN), was held.
At the meeting, the members of the Scientific Council listened to reports on the results of the implementation of stage 1 of 11 scientific and technical works within the framework of the activities of the key laboratory.
According to experts, thanks to scientific research within the framework of the key laboratory, its participants in a short period of time received meaningful scientific results in the field of high energy physics. In particular, LLC “LED Technologies of Ukraine” analyzed the main properties and substantiated the choice of structural material for switching boards – lacquer foil dielectric FGI-A, determined the initial data and requirements for creating new detector modules for experiments in the field of high energy physics.
At Taras Shevchenko National University of Kyiv, as a result of the implementation of the 1st stage of scientific and technical work within the framework of the activities of the key laboratory, algorithms and software models for single-chip and multi-chip detector panels based on microstructural gas detectors of the Micromegas / Ingrid type were created. Comparisons of the calculated values with those obtained experimentally can be used to determine the tasks of future CERN experiments.
Within the framework of international scientific and technical cooperation between Ukraine and CERN (collaborations ALICE and NA61/SHINE), the Institute of Theoretical Physics named after M.M.Bogolyubov conducted a study of strongly interdependent matter formed in collisions of hadrons and nuclei at high energies at CERN accelerators. Fundamental research was carried out in three directions: the development of field-theoretic approximations to the study of strongly interacting matter; phenomenology of quark-gluon, hadron and nuclear matter; processing, analysis of experimental data and simulation of processes in detectors and processes of interaction of heavy ions. The scientists of the Institute have studied two models of the chotyriquark interaction, which differ significantly in the behavior of their correlation lengths as far as quark condensation is concerned. It is found that quark condensates, however, are not sensitive to interactions in the range of coupling constants that are of interest for applications. A statistical model for the production of strange particles within the canonical ensemble is proposed and predicted for future experiments of the NA61 collaboration at CERN at the SPS accelerator. Based on the results of fundamental research, 12 articles were published and sent for publication in such journals as Nucl.Phys. B, arXiv, Phys. Rev. C.
Taking into account the appearance of a new generation of accelerators, such as, for example, LHC CERN (Switzerland), a sharp increase in the radiation load during irradiation of detectors used at such facilities, the topic of searching for new inorganic scintillation materials for use in detectors of the Large Hadron Collider with increased luminosity has become very relevant. carried out within the framework of the activities of the key laboratory Institute of Scintillation Materials.
Projects in the field of high energy physics put forward a number of stringent requirements for the properties of scintillators. First of all, this is a short glow time, high radiation resistance, sufficient scintillation efficiency and transparency of the material to scintillation photons. At the 1st stage of scientific and technical work, the Institute conducted a study of the optical, scintillation properties and radiation resistance of the material, which is planned to be used as the basis for composite scintillators, showed the possibility of creating radiation-resistant scintillation systems and the prospects for their use for detectors of the Large Hadron Collider.
The main objective of the project, also carried out within the framework of the activities of the key laboratory by the National Scientific Center “Kharkov Institute of Physics and Technology”, was to participate in distributed processing of information accumulated in the CMS experiment at the Large Hadron Collider at CERN (Geneva).
Using the resources of the specialized computing complex of the NSC “KIPT” – T2-center (T2_UA_KIPT), which is an active element of the computational grid infrastructure of the CMS experiment, the researchers obtained data from the Large Hadron Collider for processing, created and tested specific algorithms for analyzing the obtained physical data and computer Computer simulation of the CMS experiment. The support of this project will ensure Ukraine’s further participation in research in the field of high energy physics and elementary particles at the Large Hadron Collider.
Based on the results of the discussion, the Scientific Council approved the results of the 1st stage of scientific research in the field of high energy physics within the framework of the activities of the key laboratory and recommended continuing research aimed at implementing international scientific and technical cooperation between Ukraine and CERN.