Programme

O.6 -- Oral, VCTP-47

Date: Tuesday, 2 August 2022

Time: 11:35 - 12:00

The soft parameter of attractive Coulomb potential in nonsequential double ionization process

Thu D.H. Truong (1,2,3), Hanh H. Nguyen (1,2,3), H.-M.Tran (4), and Vinh N.T. Pham (3,5)

(1) Department of Theoretical Physics, University of Science, Ho Chi Minh City 700000, Vietnam (2) Vietnam National University, Ho Chi Minh City 700000, Vietnam (3) Department of Physics, Ho Chi Minh City University of Education, Ho Chi Minh City, Vietnam (4) Industrial University of Ho Chi Minh City, Go Vap District, Ho Chi Minh City, Viet Nam (5) International Cooperation Office, Ho Chi Minh City University of Education, Ho Chi Minh, Vietnam.

The nonsequential double ionization process is considered using the classical ensemble model. In this model, the choice of soft parameter of attractive Coulomb potential is essitial for avoiding autoionization while maintaining the physical issue of the problems. In the study, we propose a comprehensive procedure to determine the appropriate value of this parameter based on two conditions: ensuring the positive kinetic energy of two electrons and preventing the atom from autoionization. The procedure is illustrated for several noble gas atoms such as Ar, He, Ne, Kr and Xe.

Presenter: Truong Dang Hoai Thu