Lagrange-mesh R -matrix method for inhomogeneous equations
Jin Lei, P. Descouvemont · Physical Review C · 2020
The Lagrange-mesh $R$-matrix method is generalized to inhomogeneous equations. This method is numerically stable and efficient. It can be directly used for transfer reactions with the formalism discussed by Ascuitto and Glendenning [Phys. Rev. 181, 1396 (1969)] and for inclusive breakup reactions modeled by Ichimura, Austern, and Vincent [Phys. Rev. C 32, 431 (1985)]. We first present a simple example to assess the method. Then the application to the $^{93}\mathrm{Nb}(d,pX)$ nonelastic breakup is discussed.