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11.	Sukhareva, O. M., et al. (author) Validity of Quasi-classical Approaches to True Three-Body Decays 2020 In: Springer Proceedings in Physics. - Cham : Springer International Publishing. - 0930-8989 .- 1867-4941. ; 238, s. 283-286 Conference paper (peer-reviewed)abstract Within the hyperspherical harmonics (HH) method the three-body problem is reduced to a motion of one effective particle in a “strongly deformed” field, which is described in the coupled-channel formalism. This method is well suited to studies of so-called true three-body decays. The reduction of the hyperspherical equations set to a single-channel approximation provides the basis of standard quasi-classical (QC) expression for width evaluation. We demonstrate that by itself the quasi-classical approach is quite precise in application to typical three-body effective potentials. However, the reduction to a single channel leads to a significant overestimation of the width.

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Author/Editor: Grigorenko, L. (10); Zhukov, Mikhail, 194 ... (10); Kostyleva, D. (6); Parfenova, Y. L. (5); Sharov, P.G. (5); Shulgina, N. B. (5); show more...; Gorshkov, A. V. (4); Nikolskii, E.Y. (4); Wolski, R. (4); Kaminski, G (4); Bezbakh, A.A. (4); Chudoba, V. (4); Krupko, S. A. (4); Belogurov, S. G. (4); Biare, D. (4); Fomichev, A. S. (4); Gazeeva, E. M. (4); Kozlov, M. Yu (4); Mauyey, B. (4); Mukha, I. G. (4); Muzalevskii, I. A. (4); Quynh, A. M. (4); Schetinin, V. N. (4); Serikov, A. (4); Sidorchuk, S. I. (4); Slepnev, R. S. (4); Stepantsov, S. V. (4); Swiercz, A. (4); Ter-Akopian, G. M. (4); Kiselev, O. (3); Piatek, W. (3); Szymkiewicz, P. (3); Zalewski, B. (3); Khirk, M. (2); Sukhareva, O. M. (2); af Klinteberg, Britt (1); Oreland, Lars (1); Kiselev, O. A. (1); Grigorenko, Elena L. (1); Ruchkin, Vladislav V ... (1); Koposov, Roman (1); Ismailova, A. N. (1); show less...

University: Chalmers University of Technology (10); Uppsala University (1); Stockholm University (1)

Research subject (UKÄ/SCB): Natural sciences (10); Engineering and Technology (2); Medical and Health Sciences (1); Social Sciences (1)

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