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Manuscript Title: PHASE OTI: A Pre-equilibrium Model Code for Nuclear Reactions Calculations
Authors: Elsayed K. Elmaghraby
Program title: PHASE OTI
Catalogue identifier: AEDN_v1_0
Distribution format: tar.gz
Journal reference: Comput. Phys. Commun. 180(2009)1694
Programming language: Fortran 77.
Computer: Pentium 4 and Centrino Duo.
Operating system: MS Windows.
RAM: 128 MB
Keywords: Statistical theory, Few nucleon systems, Charge exchange reactions.
PACS: 74.40.+k, 25.10.+s, 25.40.Kv.
Classification: 17.12.

Nature of problem:
Calculation of the differential cross section for nucleon induced nuclear reaction in the framework of pre-equilibrium emission model.

Solution method:
Single neutron emission was treated by assuming occurrence of the reaction in successive steps. Each step is called phase because of the phase transition nature of the theory. The probability of emission was calculated statistically using bases of hybrid model [1] and exciton model [2]. However, more precise depletion factor was used in the calculations. Exciton configuration used in the code is that described in earlier work [3].

The program is restricted to single nucleon emission and nucleon-nucleon interactions.

Running time:
5-30 minutes

[1] M. Blann, Phys. Rev. Lett. 27 (1971) 337.
[2] E. Gadioli, E. G. Erba, J. J. Hogan, Phys. Rev. C 16 (1977) 1404 1424
[3] E. K. Elmaghraby, Phys. Rev. C 78 (2008) 014601.