Theoretical Analysis of the BM@N Experiment Results Presented at the International Forum “Nuclear Science and Technology” (Almaty, Kazakhstan)
From 20 to 24 September 2021, Yuri Nikolaevich Uzikov, leading researcher of the Dzhelepov Laboratory of Nuclear Problems, took part in the III International Forum “Nuclear Science and Technology” at the Institute of Nuclear Physics of the Ministry of Energy of Kazakhstan (Almaty). The forum was devoted to the 30th anniversary of the Independence of the Republic of Kazakhstan.
The forum covered various nuclear research areas. Its sections were focused on nuclear physics (nuclear structure, nuclear reactions), radiation physics, ecology, nuclear medicine and accelerator equipment.
Yuri Nikolaevich gave the talk “Short-range NN correlations and quasi-deuteron clusters in 12C in the reaction 12C+p-> 10A +pp+N". He presented the theoretical analysis of the results of the BM@N experiment (M. Patsyuk et. al, Nature Phys. 17(2021)693) where knockout of the nucleon from the short-range correlated NN pair of the 12C nucleus was measured for the first time in inverse kinematics according to the proposal made by the group of experimentalists from MIT (the US) and Tel Aviv University.
Photo by Aisha Omirzak
Research on physics of short-range nucleon correlations started in Dubna in 1957 with the experiment of the group of M. G. Mescheryakov on knocking out fast deuteron clusters from the carbon nucleus by protons.
That same year, the results of those experiments led D. I. Blokhintsev to a fruitful idea of fluctuations of the density of nuclear matter in its basic state which were later called fluctuons. Correlated NN pairs in nuclei are one of fluctuon manifestations, play a significant role in the structure of nuclei and their interactions with leptons and hadrons, and are widely studied in various nuclear centres mainly using electron beams.
Analogous research of proton−nucleus collisions in inverse kinematics allows studying short-range NN correlations in unstable neutron-rich nuclei.
The next run to measure the mentioned reaction with a higher precision will be made by the BM@N Collaboration this December.
Among the speakers from Kazakhstan, there were a lot of former students of Yuri Nikolaevich from Dubna State University. They successfully work at JINR: the Flerov Laboratory of Nuclear Reactions and Frank Laboratory of Neutron Physics.
Photo by Aisha Omirzak
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