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Дата изменения: Wed Aug 9 20:40:47 2000
Дата индексирования: Mon Oct 1 22:19:17 2012
Кодировка:
CompHEP user guide
Subsections
Elements of the user interface
Graphical interface
1. On-line Help.
2. Menu.
3. Message.
4. String Editor.
5. Table Editor.
6. Diagram Viewer.
7. Plot Viewer.
Interface for a text-screen mode
1. Menu.
2. Tables.
3. Viewer.
Menu system for symbolic calculation
Choice of the model and work with it
Menu 1.
Menu 2.
Menu 3.
Input of the process
Squaring of diagrams and symbolic calculation
Menu 5.
Menu 6.
Output of results and launching of the numerical calculation
Menu 7.
Menu 8.
Non-interactive session
Numerical calculation by CompHEP
Sketch of the menu system
Numeration of Monte Carlo sessions
QCD scale
Breit-Wigner propagator
Phase space functions
Cuts
Kinematics
Regularization
VEGAS menu
Batch calculations
Integration by means of the Simpson method
Process of two particle decay
CompHEP event generator
Concept of the event generator
The
genEvents
command
CompHEP files and commands
Files and commands in the working directory
Scheme of calls in the CompHEP session
LOCK files
User programs in CompHEP
Concept of user program implementation
Fortran
case
C
case
CompHEP output files
L
A
T
E
X output
Symbolic answer in
Reduce
and
Mathematica
formats
General structure
Example: Summation of diagrams and symbolic integration by means of the
Reduce
package
Reduce
program
Fortran
output files
C
output files
Parameter section
Process section
The squared matrix element
Widths implementation parameters
Implementation of models of particle interactions
Definition of a model in CompHEP
Independent parameters of the model
Constraints between the parameters
Description of particles
Ghost fields in CompHEP
Faddeev-Popov ghost and anti-ghost.
Goldstone ghost.
Tensor ghost.
Interaction vertices
Examples
Implementation of QCD Lagrangian
3-gluon vertex.
Quark-gluon interaction.
Interaction of ghosts with gluon.
4-gluon interaction.
Neutrino as a Majorana fermion
Leptoquarks