Package madgraph :: Package core :: Module base_objects :: Class Vertex

Class Vertex

object --+        
         |        
      dict --+    
             |    
 PhysicsObject --+
                 |
                Vertex

Vertex: list of legs (ordered), id (Interaction)

Nested Classes

[hide private]

Inherited from PhysicsObject: PhysicsObjectError

Instance Methods

[hide private]

default_setup(self)
Default values for all properties

source code

filter(self, name, value)
Filter for valid vertex property values.

source code

get_sorted_keys(self)
Return particle property names as a nicely sorted list.

source code

get_s_channel_id(self, model, ninitial)
Returns the id for the last leg as an outgoing s-channel.

source code

Inherited from PhysicsObject: __getitem__, __init__, __repr__, __str__, get, is_valid_prop, set

Inherited from dict: __cmp__, __contains__, __delitem__, __eq__, __ge__, __getattribute__, __gt__, __iter__, __le__, __len__, __lt__, __ne__, __new__, __setitem__, __sizeof__, clear, copy, fromkeys, has_key, items, iteritems, iterkeys, itervalues, keys, pop, popitem, setdefault, update, values

Inherited from object: __delattr__, __format__, __reduce__, __reduce_ex__, __setattr__, __subclasshook__

Class Variables

[hide private]

sorted_keys = ['id', 'legs']

Inherited from dict: __hash__

Properties

[hide private]

Inherited from object: __class__

Method Details

[hide private]

default_setup(self)

source code

Default values for all properties

Overrides: PhysicsObject.default_setup

filter(self, name, value)

source code

Filter for valid vertex property values.

Overrides: PhysicsObject.filter

get_sorted_keys(self)

source code

Return particle property names as a nicely sorted list.

Overrides: PhysicsObject.get_sorted_keys

get_s_channel_id(self, model, ninitial)

source code

Returns the id for the last leg as an outgoing s-channel. Returns 0 if leg is t-channel, or if identity vertex. Used to check for required and forbidden s-channel particles.