|
Документ взят из кэша поисковой машины. Адрес
оригинального документа
: http://theory.sinp.msu.ru/comphep_html/tutorial/node27.html
Дата изменения: Wed Aug 9 20:40:47 2000 Дата индексирования: Mon Oct 1 22:42:03 2012 Кодировка: |
This menu provides the user a possibility to save the obtained
symbolic results in different formats. The Reduce and Mathematica
outputs may be used for further symbolic manipulation.
For example, you can get symbolic representation of a
sum of all diagrams, perform some substitutions or
expansions, evaluate the symbolic expression for the total
cross-section or width of the process. As a rule such manipulations are
possible and reasonable for the processes with a small number of final particles.
The structure of the symbolic output and some programs for manipulation
with the Reduce output are described in Section
.
Otherwise the C and Fortran outputs are used to get numerical results.
They may be compiled and linked with the library of
CompHEP routines for phase space integration.
The produced executable program allows one to obtain numerical values of the
total cross-section or width, distributions and an event flow, taking into
account a variety of cuts.
In order to create an executable file for numerical
calculations based on the C/Fortran output
use functions of Menu 6 or
launch the $COMPHEP/make__n_comphep program as it has been explained
in Section .