Package madgraph :: Package core :: Module base_objects :: Class Particle

Class Particle

object --+        
         |        
      dict --+    
             |    
 PhysicsObject --+
                 |
                Particle

The particle object containing the whole set of information required to univocally characterize a given type of physical particle: name, spin, color, mass, width, charge,... The is_part flag tells if the considered particle object is a particle or an antiparticle. The self_antipart flag tells if the particle is its own antiparticle.

Nested Classes

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Inherited from PhysicsObject: PhysicsObjectError

Instance Methods

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default_setup(self)
Default values for all properties

source code

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

source code

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

source code

get_pdg_code(self)
Return the PDG code with a correct minus sign if the particle is its own antiparticle

source code

get_anti_pdg_code(self)
Return the PDG code of the antiparticle with a correct minus sign if the particle is its own antiparticle

source code

get_color(self)
Return the color code with a correct minus sign

source code

get_anti_color(self)
Return the color code of the antiparticle with a correct minus sign

source code

get_name(self)
Return the name if particle, antiname if antiparticle

source code

get_helicity_states(self)
Return a list of the helicity states for the onshell particle

source code

is_fermion(self)
Returns True if this is a fermion, False if boson

source code

is_boson(self)
Returns True if this is a boson, False if fermion

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

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sorted_keys = ['name', 'antiname', 'spin', 'color', 'charge', ...

Inherited from dict: __hash__

Properties

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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 particle 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

Class Variable Details

[hide private]

sorted_keys

Value:

['name',
 'antiname',
 'spin',
 'color',
 'charge',
 'mass',
 'width',
 'pdg_code',
...