Programme

O.19 -- Oral, VCTP-45

Date: Wednesday, 14 October 2020

Time: 14:30 - 14:50

Online presentation

Effects of velocity-dependent and spin-orbit term of Skyrme interaction on neutron elastic scattering observables

N. Hoang Tung (1,2,3,4), D. Quang Tam(5,6), Vinh N. T. Pham (7), Chi Lam Truong (8), T. V. Nhan Hao (5,9)

(1) Institute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh City 700000, Vietnam; (2) Faculty of Natural Science, Duy Tan University, Da Nang City 550000, Vietnam; (3) Department of Nuclear Physics and Nuclear Engineering, Faculty of Physics and Engineering Physics, University of Science, Ho Chi Minh City, Vietnam; (4) Vietnam National University, Ho Chi Minh City, Vietnam; (5) Faculty of Physics, University of Education, Hue University, 34 Le Loi Street, Hue City, Vietnam; (6) Faculty of Basic Science, University of Medicine, Hue University, Hue City, Vietnam; (7) Ho Chi Minh City University of Education, Ho Chi Minh City, Vietnam; (8) NTT Hi-Tech Institute, Nguyen Tat Thanh University, Ho Chi Minh City 700000, Vietnam (9) Center for Theoretical and Computational Physics, University of Education, Hue University, 34 Le Loi Street, Hue City, Vietnam

Elastic scattering of a series of doubly closed-shell nuclei at low-energy has been described in the framework of the optical potential model generated from the particle-vibration coupling (PVC) approach on top of the collective excited states obtained from the random phase approximation (RPA). We focus on the effects of the spin-orbit and velocity-dependent interaction on the angular distributions and analyzing powers by comparing these observables with experimental data. It has been found that the contribution of the two-body velocity-dependent and two-body spin-orbit terms are important to improve results for 16O, 40Ca, 48Ca, and 208Pb. The velocity-dependent interactions strongly reduce the absorption on the surface while the spin-orbit interactions sightly increase the absorption in the interior [1]. [1] N. Hoang Tung, D. Quang Tam, Vinh N. T. Pham, Chi Lam Truong, and T. V. Nhan Hao, Effects of velocity-dependent and spin-orbit term of Skyrme interaction on neutron elastic scattering observables, Physical Review C, accepted, (2020).

Presenter: Trần Viết Nhân Hào