Nuclear reactions induced by photons play a vital role for very different aspects of basic research and applications in physics. In this project we will study different theoretical methods developed for the description of reaction mechanisms. The acquired knowledge will be further used for the calculation of Bi isotopic yields obtained in the recent experiments at JINR.

Tasks

1. Review of theoretical methods developed for a description of the photonuclear reactions.
2. Microscopic calculations of level densities and its implementation into the TALYS code.
3. Application to study (gamma,xn) reaction.

Preliminary schedule by topics/tasks

1-2 week: Several lectures to review various theoretical methods and approaches to photonuclear reactions with special emphasize
on description of pre-equilibrium decay processes.
3-4 week: Development of the computer code to calculate microscopic level densities of heavy nuclei.
5-6: Calculation of isotope production in ($^{209}$)Bi($\gamma,xn$) reaction in energy Region up to 100 MeV.

Required skills

The participant must have a basic knowledge in nuclear physics, be able to program in Phyton and Mathematica.

Acquired skills and experience

Participant will learn how to calculate the nuclear level density within the microscopic approach and will become familiar with the use of various existing computer codes used to process the experimental data on photonuclear reactions.

Recommended literature

1. M. Demichev et al., Physics of Atomic Nuclei, 85, 805 (2022); 2. A. N. Ermakov et al, Physics of Atomic Nuclei, 73, 737 (2010) ; 3. A. Zilges, D.L. Balabanski, J. Isaak, N. Pietralla, Progress in Particle and Nuclear Physics 122, 103903(2022)