# SIGV5D: A routine to compute the reaction rates of interacting distribution functions

## Description

Abstract We present a package which computes reaction rates 〈σv〉 based on interactions whose cross-sections σ are functions of relative velocity. The reacting distribution functions are expressed in terms of spherical coordinates in velocity space and are assumed to be independent of the azimuthal angle. A Legendre expansion method is used. One may compute 〈σv〉 for several different reactions simultaneously and for several sets of distribution functions. The user must supply subprograms for setting up... Title of program: SIGV5D Catalogue Id: ABFG_v1_0 Nature of problem SIGV5D computes reaction rates <sigmav> based on interactions whose cross-sections sigma are functions of relative velocity. The reacting species are described by velocity-space distribution functions, which when expressed in terms of spherical coordinates in velocity space (v, theta, phi), are assumed to be independent of the azimuthal angle phi. One may compute <sigmav> for several different reactions simultaneously and for several sets of distribution functions. Versions of this program held in the CPC repository in Mendeley Data ABFG_v1_0; SIGV5D; 10.1016/0010-4655(88)90149-X This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)