Package madgraph :: Package various :: Module process_checks :: Class MatrixElementEvaluator

Class MatrixElementEvaluator

object --+
         |
        MatrixElementEvaluator

Known Subclasses:

LoopMatrixElementEvaluator

Class taking care of matrix element evaluation, storing relevant quantities for speedup.

Instance Methods

[hide private]

__init__(self, model, param_card=None, auth_skipping=False, reuse=True, cmd=FakeInterface())
Initialize object with stored_quantities, helas_writer, model, etc.

source code

evaluate_matrix_element(self, matrix_element, p=None, full_model=None, gauge_check=False, auth_skipping=None, output='m2', options=None)
Calculate the matrix element and evaluate it for a phase space point output is either m2, amp, jamp source code

get_momenta(self, process, options=None)
Get a point in phase space for the external states in the given process, with the CM energy given.

source code

Inherited from object: __delattr__, __format__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __repr__, __setattr__, __sizeof__, __str__, __subclasshook__

Properties

[hide private]

Inherited from object: __class__

Method Details

[hide private]

init(self, model, param_card=None, auth_skipping=False, reuse=True, cmd=FakeInterface())
(Constructor)

source code

Initialize object with stored_quantities, helas_writer,
model, etc.
auth_skipping = True means that any identical matrix element will be
                evaluated only once
reuse = True means that the matrix element corresponding to a
        given process can be reused (turn off if you are using
        different models for the same process)

Overrides: object.__init__

get_momenta(self, process, options=None)

source code

Get a point in phase space for the external states in the given process, with the CM energy given. The incoming particles are assumed to be oriented along the z axis, with particle 1 along the positive z axis.

Class MatrixElementEvaluator

__init__(self, model, param_card=None, auth_skipping=False, reuse=True, cmd=FakeInterface()) (Constructor)

get_momenta(self, process, options=None)

init(self, model, param_card=None, auth_skipping=False, reuse=True, cmd=FakeInterface())
(Constructor)