Programme

O.3 -- Oral, VCTP-48

Date: Monday, 31 July 2023

Time: 14:40 - 15:05

The role of nuclear decay, collectivity and resonances: toward a new definition of collectivity for neutron-rich unstable nuclei

K. Mizuyama (1,2), T. Dieu Thuy (3,4), D. Quang Tam (3,4,5), L. G. Bao Khanh (3,4), T. V. Nhan Hao (3,4)

(1) Institute of Research and Development, Duy Tan University, Da Nang 550000, Vietnam (2) Faculty of Natural Sciences, Duy Tan University, Da Nang 550000, Vietnam (3) Faculty of Physics, University of Education, Hue University, 34 Le Loi Street, Hue City 52000, Vietnam (4) Center for Theoretical and Computational Physics, University of Education, Hue University, 34 Le Loi Street, Hue City 52000, Vietnam (5) Faculty of Basic Sciences, University of Medicine and Pharmacy, Hue University, Hue City 52000, Vietnam

This project is devoted to clarify the relationship between decay, resonance, and collective modes in nuclei. First, we will analyze the nature of the poles of collective modes in the complex plane and classification of resonance types using the Jost-RPA method [1]. Then, the Jost-RPA method will be applied to the nucleon-nucleus scattering in terms of the effect of collective modes and resonances on the absorption effects in nucleon scattering targeting odd nuclei. For nucleon scattering targeting even-even nuclei, the same analysis will be performed using self-consistent PVC [2]. The target nuclei range from stable to neutron-rich nuclei. Based on the results of these analyses, we will also try to give a new definition of collective mode to solve the mystery of collective mode of neutron-rich nuclei. [1] K. Mizuyama,N. Nhu Le, T. Dieu Thuy, N. Hoang Tung, D. Quang Tam and T. V. Nhan Hao, Phys.Rev.C107,024303(2023) [2] N. Hoang Tung, D. Quang Tam, Vinh N. T. Pham, Chi Lam Truong, and T. V. Nhan Hao, Phys. Rev. C 102, 034608 (2020)

Presenter: Tran Viet Nhan Hao