Program LORNA executes global analysis of particle spectra Catalogue number: AABM generated in nuclear reactions studied with polarized projectiles. Spectra corresponding to different signs of the source Program obtainable from: CPC Program Library, ~U~-polarization and taken at various reaction angles by an array of versity of Belfast, N. Ireland (see application form in this issue) independent detectors are analysed automatically and converted to the angular distributions (differential cross-sections and the analysing powers) for groups of particles indicated by Computer: VAX-780 the user. Operating system: VAX VMS 3.6 Method of solution Global analysis of spectra is provided by incorporating nuclear Programming language: FORTRAN-77 reactions kinematics calculations in the program. Analysis can be carried out either in channel-by-channel integration or by High speed storage required: 105.5 Kwords fitting Gaussian distributions. Number of bits in a word: 32 Restrictions on the complexity of the problent Up to 20 particle groups belonging to the same nuclear reaction Peripherals used: TEKTRONIX or other graphic terminal, can be specified at one time for the analysis. The program has been written for a specific case of spin 1 projectiles with Graphic display is optional provision for extending it to other spin specifications. Symmetric Gaussian forms are used. No. of lines in the program including samples of the input data and spectrum files: 2981 Typical running time The program contains interactive input and output sections. If