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Manuscript Title: Computation of total, differential and double-differential cross sections for compound nuclear reactions of the type (a,b), (a,bgamma) and (a,bgamma-gamma). (III) FORTRAN translations of the ALGOL programs MANDY and BARBARA.
Authors: E. Sheldon, S. Mathur, D. Donati
Program title: BARBYF
Catalogue identifier: ABOB_v2_0
Distribution format: gz
Journal reference: Comput. Phys. Commun. 2(1971)274
Programming language: Fortran.
Computer: PDP-10.
Operating system: PDP-10, PDP-9.
RAM: 14K words
Word size: 36
Peripherals: disc.
Keywords: Nuclear physics, Reaction, Mechanism, Statistical, Compound nucleus, Angular correlation, Double differential Cross section, Total cross section, Spin-parity, Level assignments, Multipolarity, Mixing ratio, Racah functions, Clebsch-gordan Coefficient, Racah coefficient, Fano x-coefficients (wigner 3-j, 6-j and 9-j symbols), Legendre hyperpolynomial, Associated legendre Functions, Transmission coefficient, Optical potential, Penetrability, J-j coupling, Spin-orbit coupling, Hauser-feshbach, Satchler, Moldauer, Biedenharn-rose, Level-width fluctuation, Correlation function, Inelastic scattering, Compound stripping, Transfer.
Classification: 17.10.

Revision history:
Type Tit le Reference
correction 000A CORRECTION 17/10/72 See below

Nature of problem:
Evaluation of total and differential cross sections in absolute and normalized form for angular correlations in low-energy nuclear reactions of the type (a,bgamma) or (a,bgamma1-gamma2) according to statistical compound-nucleus theory in j-j coupling formalism. The Algol program "BARBARA" (CPC 1(1969) 35) has been rewritten as "BARBYF" in Fortran-IV, retaining the orginal features of its counterpart.

Restrictions:
Orbital angular momenta for particles a, b in CN entrance and exit channels are restricted to l<=8, the number of subsidiary outgoing channels being confined to O3<=40. For discrimination between O- and O+ nuclear states, appropriate machine-specific procedures have to be devised.

Running time:
About 3-40 minutes per case, depending on the magnitude of the cut-off momenta (normally confined to l<=6 in practice) and the fineness of the angular variation.

CORRECTION SUMMARY
Manuscript Title: Computation of total, differential and double-differential cross sections for compound nuclear reactions of the type (a,b), (a,bgamma) and (a,bgamma-gamma). (III) FORTRAN translations of the ALGOL programs MANDY and BARBARA. (C.P.C. 2(1971)274).
Authors: E. Sheldon, S. Mathur, D. Donati
Program title: 000A CORRECTION 17/10/72
Catalogue identifier: ABOB_v2_0
Distribution format: gz
Journal reference: Comput. Phys. Commun. 5(1973)304
Classification: 17.10.