Abstract
Opportunities to study unexplored domains of nuclear matter phase diagram with BM@N and SPD-NICA is discussed. Since the optimal initial energy range depends on the phase diagram domain, the subject and experimental methods for its study have a lot of opportunities both for the fixed target and collider experiments. Fixed target experiments provide an access to the laboratory study of nuclear matter with the unprecedented density as high as the one for the neutron star core and even larger. A specialised kinematic trigger for relativistic ion-ion collisions can be used for this study. On the other hand, the NICA collider energy range will provide unique opportunities to study interactions between multi-quark states. The article discusses the importance of experimental study of the diquark component of nuclear structure function and diquark-diquark interactions. It is important to develop neutron identification methods both for the fixed target and collider experiments.
Highlights
Perturbative aspects of QCD have been tested up to a few percent
A new approach to the laboratory study of extremely dense baryonic matter at low temperature has been offered by FLINT collaboration [1, 2]
The key point of this proposal is a high pt cumulative trigger for this study. This trigger provides selecting interactions between the dense baryonic matter droplets, which can be considered as droplets of dense cold matter
Summary
Perturbative aspects of QCD have been tested up to a few percent. In contrast, nonperturbative aspects of QCD (hadronization, confinement, etc.) have been poorly tested. The key point of this proposal is a high pt cumulative trigger for this study This trigger provides selecting interactions between the dense baryonic matter droplets (cumulative process), which can be considered as droplets of dense cold matter. New experiments in IPHE (SPIN) and JINR (SRC-BM@N) show the growing interest to the study of cumulative processes It is evident, that modern detectors which are operating, being constructed and planned for the Nuclotron-NICA complex will open new opportunities in studying the dense nuclear matter and cumulative processes. For that reason it seems important to intensify discussions on perspectives of the dense cold matter study at the complex Nuclotron-NICA.
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