Study of unstable states in dissociation of light nuclei
Seminars
VBLHEP Specialized A. M. Baldin Seminar
Relativistic nuclear physics and polarization phenomena #825
Date and Time: Wednesday, 6 November 2024, at 11:00 AM
Venue: Conference Hall (bld. 3), the Veksler and Baldin Laboratory of High Energy Physics, online on Volna
Seminar topic: “Study of unstable states in dissociation of light nuclei”
Speaker: Pavel Zarubin
Abstract:
A status of a study of few unstable states in relativistic dissociation of 9,7Ве, 12C, 14N and 16O isotopes in the BECQUEREL Experiment is presented. Determination of the invariant masses of α-particle ensembles from the fragment emission angles in the approximation of conservation of primary momentum per nucleon allows one to reconstruct the decays of 8Be(0+), 8Be(2+), 9Be(1.7), 9B, 6Be, 12С(0+2), 12C(3–) and 7Ве(7.2), which is ensured by the unique resolution of the nuclear emulsion. The diversity of these states indicates the universality of their formation in the resonant fusion of α-particles and nucleons and, therefore, the feasibility of the key processes of nuclear astrophysics in the relativistic cone. At the same time, these observations serve as a basis for studying the relativistic dissociation of heavy nuclei into multiple particle states at the lower limit of nuclear temperature and density.
A status of a study of few unstable states in relativistic dissociation of 9,7Ве, 12C, 14N and 16O isotopes in the BECQUEREL Experiment is presented. Determination of the invariant masses of α-particle ensembles from the fragment emission angles in the approximation of conservation of primary momentum per nucleon allows one to reconstruct the decays of 8Be(0+), 8Be(2+), 9Be(1.7), 9B, 6Be, 12С(0+2), 12C(3–) and 7Ве(7.2), which is ensured by the unique resolution of the nuclear emulsion. The diversity of these states indicates the universality of their formation in the resonant fusion of α-particles and nucleons and, therefore, the feasibility of the key processes of nuclear astrophysics in the relativistic cone. At the same time, these observations serve as a basis for studying the relativistic dissociation of heavy nuclei into multiple particle states at the lower limit of nuclear temperature and density.