Frank Laboratory of Neutron Physics

Department of Nuclear Physics

Leader – E.V. Lychagin

Date and Time: Wednesday, 11 October 2017, at 11:00 AM

Venue: Conference hall (3rd floor), Frank Laboratory of Neutron Physics

Seminar topic: «The Breaking Thresholds of Cooper Nucleon Pairs and Features of the Decay of ¹⁷²Yb Nucleus in the ¹⁷¹Yb(n_th,2γ) Reaction»

Authors: Anh Nguyen N., Hai Nguyen X., Khang Phan D., Vu D.C., Mitsyna L.V., Sukhovoj A.M.

Speaker: A.M. Sukhovoj

Abstract:

For the purpose of enhancement of the experimental data set on the cascade intensities of two gamma quanta emitted step by step after radiative capture of the thermal neutrons, the ¹⁷¹Yb(n_th,2γ)-reaction was investigated. In the analysis of the cascade intensities the structure change of the observed levels of the ¹⁷²Yb nucleus was discovered depending on the excitation energy, and the probable breaking thresholds were obtained for four Cooper pairs of neutrons below neutron binding energy.