Ядерна фізика та енергетика Nuclear Physics and Atomic Energy   ISSN: 1818-331X (Print), 2074-0565 (Online)   Publisher: Institute for Nuclear Research of the National Academy of Sciences of Ukraine   Languages: Ukrainian, English   Periodicity: 4 times per year   Open access peer reviewed journal

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O. M. Povoroznyk^*, O. K. Gorpinich

Institute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, Ukraine

^*Corresponding author. E-mail address: orestpov@kinr.kiev.ua

Abstract: The new analysis of inclusive proton spectra from ³H(α,p)⁶He reaction was performed. The existence of two new excited levels of ⁶He with energy parameters E_2ex.s.*= 2.4 MeV, Γ = 0.4 MeV; E_3ex.s.*= 3.0 MeV, Γ = 0.6 MeV was confirmed as a result of new parameterization performed using energy parameters obtained from the correlation kinematic-incomplete experimental study of ³H(α,pα)nn reactions at E_α = 27.2 MeV and E_α = 67.2 MeV in contrast to the initial analysis, in which the resonance observed above the known first excited ⁶He level E_1ex.s. = 1.8 MeV was treated as the second broad excited level E_2ex.s. = 2.98 (0.17) MeV, Γ_2ex.s. = 2.39 (0.27) MeV.

Keywords: excited states of ⁶He, ³H(α,p)⁶He and ³H(α,pα)nn reactions, titanium-tritium target, methods of Monte Carlo modeling.

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