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Package madgraph :: Package various :: Module lhe_parser :: Class FourMomentum
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Class FourMomentum

source code

object --+
         |
        FourMomentum

a convenient object for 4-momenta operation

Instance Methods [hide private]
 
__init__(self, obj=0, px=0, py=0, pz=0, E=0)
initialize the four momenta		 source code
 
mass_sqr(self)
return the mass square		 source code
 
pt2(self)
return the pt square		 source code
 
__add__(self, obj) source code
 
__iadd__(self, obj)
update the object with the sum		 source code
 
__pow__(self, power) source code
 
boost(self, mom)
mom 4-momenta is suppose to be given in the rest frame of this 4-momenta.		 source code

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

Properties [hide private]
  mass
return the mass
  pt
  pseudorapidity

Inherited from object: __class__

Method Details [hide private]

__init__(self, obj=0, px=0, py=0, pz=0, E=0)
(Constructor)

source code 

initialize the four momenta

Overrides: object.__init__

boost(self, mom)

source code 

mom 4-momenta is suppose to be given in the rest frame of this 4-momenta. the output is the 4-momenta in the frame of this 4-momenta function copied from HELAS routine.


Property Details [hide private]

mass

return the mass

Get Method:
unreachable.mass(self) - return the mass

pt

Get Method:
unreachable.pt(self)

pseudorapidity

Get Method:
unreachable.pseudorapidity(self)

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