This is a list of Frequently Asked Questions about Recola
- … do I get different numbers with other tools?
There are many reasons for finding disagreement with other tools. The most common mistake is a different set of input parameters. With Recola2 you can print all internal and derived parameters by setting
from pyrecola import * set_print_level_parameters_rcl(2)
which allows for a direct comparison of all used parameters.
For a technical/precision comparison we recommend switching off the Complex-Mass scheme (CMS) and setting all widths to zero. Furthermore, Recola has a different convention for finite parts of loop-amplitudes. Comparing to OpenLoops or Madgraph requires to set
from pyrecola import * from math import pi set_delta_ir_rcl(0,pi**2/6)
How do I…¶
- … visualize contributions to processes?
- Recola supports for drawing branches with
set_draw_level_branches_rcl(), which, after invoking
generate_processes_rcl(), will generate TeX files in the current working directory. The TeX files can be compiled and transformed to postscript with the programs
dvipsand require the Axodraw package.