By studying processes which take place inside nucleus of the atom, or during nuclear reactions, we can extract all sorts of information about the structure of atoms and nuclei, processes and interactions that drive the life on Earth as well as the whole universe. In this thesis we will primarily deal with data analysis of the 12^C(n,p)12^B reaction. Our main goal is to develop a method for reconstructing the angular distribution of the created protons. The shape of angular distribution can suggest the nature of physical processes undergone during reactions. We will present two methods for reconstructing the angular distribution, direct inversion method and partial waves method. In direct inversion method we fit the model to the data without any parameterization of the angular distribution. In partial waves method we assume that the angular distribution can be expressed as a linear combination of finite number of partial waves, that is Legendre polynomials. Then by fitting the data, we get the optimal number of Legendre polynomials and their respective coefficients. In order to have complete control over the methods, we will simulate the products of 12^C(n,p)123 B reaction and then test the methods on that simulated data. In the final chapter we will compare and discuss the results that these two methods provide.