Monte Carlo simulation of two-photon processes: II: Complete lowest order calculations for four-lepton production processes in electron-positron collisions

Program obtainable from: CPC Program Library, Queen’s University of Belfast, N. Ireland (see application form in this Method of solution issue) The 36 diagrams are divided into four groups (see ref. [11).For each group we design a separate generator in which all the Computer: Amdahl V7B or IBM 370/158 phase-space variables have been chosen such that the peaking structure is well described. The interference between the groups Programming language used: FORTRAN H-EXT * is taken care of by the assignment of a weight to the events. High speed storage required: 256 K Each event is first obtained according to one out of four approximate distributions by the corresponding generator. We No. of bits in a word: 32 account for the approximations used by imposing a weight on the events. Upon the application of a rejection algorithm we