Package madgraph :: Package core :: Module helas_objects :: Class IdentifyMETagMadSpin
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Class IdentifyMETagMadSpin

source code

                   object --+        
                            |        
diagram_generation.DiagramTag --+    
                                |    
                    IdentifyMETag --+
                                    |
                                   IdentifyMETagMadSpin

Should ensure that the splitting is the same with and without decay So we want to combine processes with different possibly onshell s-channel propagators. This was done by the vertex.

Nested Classes [hide private]

Inherited from diagram_generation.DiagramTag: DiagramTagError

Instance Methods [hide private]

Inherited from diagram_generation.DiagramTag: __eq__, __gt__, __init__, __lt__, __ne__, __repr__, __str__, diagram_from_tag, get_external_numbers

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

Class Methods [hide private]

Inherited from IdentifyMETag: create_tag

Inherited from diagram_generation.DiagramTag: legPDGs_from_vertex_id, leg_from_legs, vertex_from_link, vertices_from_link

Static Methods [hide private]
 
vertex_id_from_vertex(vertex, last_vertex, model, ninitial)
Returns the info needed to identify matrix elements: interaction color, lorentz, coupling, and wavefunction spin, self_antipart, mass, width, color, decay and is_part.
source code

Inherited from IdentifyMETag: flip_vertex, link_from_leg, prepare_comp_dict

Inherited from diagram_generation.DiagramTag: id_from_vertex_id, leg_from_link, loop_info_from_vertex_id, reorder_permutation

Class Variables [hide private]

Inherited from IdentifyMETag: dec_number

Properties [hide private]

Inherited from object: __class__

Method Details [hide private]

vertex_id_from_vertex(vertex, last_vertex, model, ninitial)
Static Method

source code 

Returns the info needed to identify matrix elements: interaction color, lorentz, coupling, and wavefunction spin, self_antipart, mass, width, color, decay and is_part. BUT NOT PDG code for possible onshell s-channel prop.

Overrides: diagram_generation.DiagramTag.vertex_id_from_vertex