Search academic texts

Information × Registration Number 0222U003092, 0116U004452 , R & D reports Title Study of lowenergy part of excitation spectra of helium isotopes popup.stage_title Head Povoroznyk Orest M, Registration Date 18-02-2022 Organization Institute for Nuclear Research of NAS of Ukraine popup.description2 Object of research: low-energy part of excitation spectra of helium isotopes. It was not possible to conduct the planned in kinematically complete so incomplete correlation experiments on the beam of the alpha particles of the classical U-120 cyclotron due to a number of objective circumstances, so the previously obtained data were analyzed. Purpose: to clarify the structure of the low - energy part of the excitation spectra of hydrogen isotopes. Research methods: obtaining inclusive and correlation spectra from the interaction of alpha particles with 2H and 3H nuclei. At the 4th stage of SER, a re-analysis of the inclusive proton spectra obtained previously from the 3H (α, p) αnn reaction was performed. In contrast to the initial analysis, in which the resonant structure observed above the known first excited 6He level (E1ех.s. = 1.8MeV) was treated as the second excited nucleus level (E2ех.s. = 2.98 (0.17) MeV: Γ2ex.s = 2.39 (0.27) MeV.) Was the result of a new parameterization performed using the Monte Carlo modeling method, a manifestation of the population of two excited levels of the 6He nucleus with the energy parameters E2ex.s. = 2.40 (0.20) MeV, Γ2ех.s = 2.39 (0.30) MeV. and E3ех.s. = 2.9 (0.17) MeV, Γ2ех.s = 2.39 (0.27) MeV . These results are consistent with the results of correlation kinematically incomplete experimental studies of four - particle 3H (α, pα) nn reactions performed for two energies of incident alpha particles.-27.2 MeV and 67.2 MeV Product Description popup.authors Gorpinich Olga K Roznyuk Jurij S popup.nrat_date 2022-03-09 Close