Patsyuk, M.; Atovullaev, T.; Johansson, G.; Klimanskiy, D.; Lenivenko, V.; Nepochatykh, S.; Piasetzky, E. Experimental Study of Cold Dense Nuclear Matter. Particles2024, 7, 229-236.
Patsyuk, M.; Atovullaev, T.; Johansson, G.; Klimanskiy, D.; Lenivenko, V.; Nepochatykh, S.; Piasetzky, E. Experimental Study of Cold Dense Nuclear Matter. Particles 2024, 7, 229-236.
Patsyuk, M.; Atovullaev, T.; Johansson, G.; Klimanskiy, D.; Lenivenko, V.; Nepochatykh, S.; Piasetzky, E. Experimental Study of Cold Dense Nuclear Matter. Particles2024, 7, 229-236.
Patsyuk, M.; Atovullaev, T.; Johansson, G.; Klimanskiy, D.; Lenivenko, V.; Nepochatykh, S.; Piasetzky, E. Experimental Study of Cold Dense Nuclear Matter. Particles 2024, 7, 229-236.
Abstract
The fundamental theory of nuclear interactions, Quantum Chromodynamics (QCD), operates in terms of quarks and gluons at higher resolution. At low resolution the relevant degrees of freedom are nucleons. Two-nucleon Short-Range Correlations (SRC) help to interconnect these two descriptions. SRCs are temporary fluctuations of strongly interacting close pairs of nucleons. The distance between the two nucleons is comparable to their radii and their relative momenta are larger than the fermi sea level. According to the electron scattering experiments held in the last decade, SRCs have far-reaching impacts on many-body systems, the nucleon-nucleon interactions, and nuclear substructure. The modern experiments with ion beams and cryogenic liquid hydrogen target make it possible to study properties of the nuclear fragments after quasi-elastic knockout of a single nucleon or an SRC pair. The first SRC experiment at BM@N (2018) with a carbon beam has shown that detection of an intact 11B nucleus after interaction selects out the quasi-elastic knockout reaction with minimal contribution of initial- and final-state interactions. Also, 25 events of SRC-breakups showed agreement in SRC properties as knows from electron beam experiments. The analysis of the second measurement of SRC at BM@N held in 2022 with an improved setup is currently ongoing. The SRC project at JINR moved to a new experimental area in 2023, where the next measurement is being planned in terms of experimental setup and physics goals.
Physical Sciences, Nuclear and High Energy Physics
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