Production cross sections of mercury and radon isotopes in complete fusion reactions with 36,40Ar and 40,48Ca projectiles

23 Sept 2021, 15:50
25m
Oral report Section 2. Experimental and theoretical studies of nuclear reactions. Section 2. Experimental and theoretical studies of nuclear reactions

Speaker

Dr Elena Chernysheva (Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research)

Description

The complete fusion - excitation functions of xn-evaporation channels of the reactions 144Sm(40Ar, xn){184-x}Hg, 148Sm(36Ar, xn){184-x}Hg, 144Nd(40Ca, xn)^{184-x}Hg, 142Nd(48Ca, xn)^{190-x}Hg, and 166Er(40Ar, xn)^{206-x}Rn have been measured by using the catcher foil method [1]. A modified version this technique was applied allowing to measure decay properties of α-radioactive nuclides with half-lives ≥ 0.1 s. The beam interruption method was used for the isotope identification. The influence of the beam energy spread at its passing through absorbing foils and the target layer on the excitation functions has been taken in account using the Gold deconvolution method [2]. The measured excitation functions have been compared with theoretically calculated with the coupled-channel model [3,4]. The influence of both the target and projectile nucleus deformations on the final xn-evaporation channel cross sections has been analyzed.

References
1. D. Vermeulen et al., Z. Phys. A 318, 157 (1984)
2. M. Morhac et al., Nucl. Instr. Meth. A 401, 385 (1997)
3. V.I. Zagrebaev, V.V. Samarin, Physics of Atomic Nuclei, 67, 1462 (2004)
4. A.V. Karpov et al., Nucl. Instr. Meth. A 859, 112 (2017)

Primary authors

Dr Alexander Rodin (Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research) Dr Elena Chernysheva (Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research)

Co-authors

Mr Alexander Gulyaev (Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research) Mr Alexander Komarov (Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research) Mr Alexander Podshibyakin (Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research) Mr Alexey Novoselov (Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research) Mrs Anna Gulyaeva (Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research) Mr Antonin Opichal (Department of Experimental Physics, Faculty of Science, Palacky University) Dr Dusan Kamas (Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research) Prof. Jan Kliman (Institute of Physics SASc, Bratislava, Slovakia) Dr Lubos Krupa (Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research) Dr Michail Holik (Institute of Experimental and Applied Physics, Czech Technical University) Prof. Sergey Dmitriev (Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research) Dr Sergey Stepantsov (Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research) Mr Sergey Yukhimchuk (Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research) Dr Vladimir Salamatin (Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research) Mr Vyacheslav Vedeneev (Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research) Prof. Yury Oganessian (Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research)

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