Package madgraph :: Package core :: Module diagram_generation

Module diagram_generation

Classes for diagram generation. Amplitude performs the diagram generation, DecayChainAmplitude keeps track of processes with decay chains, and MultiProcess allows generation of processes with multiparticle definitions. DiagramTag allows to identify diagrams based on relevant properties.

Classes

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DiagramTag
Class to tag diagrams based on objects with some __lt__ measure, e.g.

DiagramTagChainLink
Chain link for a DiagramTag.

Amplitude
Amplitude: process + list of diagrams (ordered) Initialize with a process, then call generate_diagrams() to generate the diagrams for the amplitude

AmplitudeList
List of Amplitude objects

DecayChainAmplitude
A list of amplitudes + a list of decay chain amplitude lists; corresponding to a ProcessDefinition with a list of decay chains

DecayChainAmplitudeList
List of DecayChainAmplitude objects

MultiProcess
MultiProcess: list of process definitions list of processes (after cleaning) list of amplitudes (after generation)

Functions

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expand_list(mylist)
Takes a list of lists and elements and returns a list of flat lists.

source code

expand_list_list(mylist)
Recursive function.

source code

Variables

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logger = logging.getLogger('madgraph.diagram_generation')

__package__ = 'madgraph.core'

Function Details

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expand_list(mylist)

source code

Takes a list of lists and elements and returns a list of flat lists. Example: [[1,2], 3, [4,5]] -> [[1,3,4], [1,3,5], [2,3,4], [2,3,5]]

expand_list_list(mylist)

source code

Recursive function. Takes a list of lists and lists of lists and returns a list of flat lists. Example: [[1,2],[[4,5],[6,7]]] -> [[1,2,4,5], [1,2,6,7]]