python.samplers.EEtaMPhiSampler Class Reference

Inheritance diagram for python.samplers.EEtaMPhiSampler:

Collaboration diagram for python.samplers.EEtaMPhiSampler:

Public Member Functions
def	__init__ (self, energy, eta, mass=0.0, phi=[0, TWOPI])
def	energy (self)
def	energy (self, x)
def	eta (self)
def	eta (self, x)
def	mass (self)
def	mass (self, x)
def	phi (self)
def	phi (self, x)
def	shoot (self)
def	__call__ (self)

Public Attributes
	energy
	eta
	mass
	phi

Private Attributes
	_e
	_eta
	_m
	_phi

Detailed Description

Definition at line 435 of file samplers.py.

Constructor & Destructor Documentation

__init__()

def python.samplers.EEtaMPhiSampler.__init__	(		self,
			energy,
			eta,
			mass = 0.0,
			phi = [0, TWOPI]
	)

Definition at line 440 of file samplers.py.

    def __init__(self, energy, eta, mass=0.0, phi=[0, TWOPI]):
        self.energy = energy
        self.eta = eta
        self.mass = mass
        self.phi = phi
 

Member Function Documentation

__call__()

def python.samplers.Sampler.__call__ (   self )

inherited

This is the call method that will actually be used (so that normal
functions can also be passed in as samplers).

Definition at line 17 of file samplers.py.

    def __call__(self):
        """This is the call method that will actually be used (so that normal
        functions can also be passed in as samplers)."""
        return self.shoot()
 

energy() [1/2]

def python.samplers.EEtaMPhiSampler.energy

(

self

)

Definition at line 447 of file samplers.py.

    def energy(self):
        "Energy sampler"
        return self._e

energy() [2/2]

def python.samplers.EEtaMPhiSampler.energy	(		self,
			x
	)

Definition at line 451 of file samplers.py.

    def energy(self, x):
        self._e = mksampler(x)
 

eta() [1/2]

def python.samplers.EEtaMPhiSampler.eta

(

self

)

Definition at line 455 of file samplers.py.

    def eta(self):
        "Pseudorapidity sampler"
        return self._eta

eta() [2/2]

def python.samplers.EEtaMPhiSampler.eta	(		self,
			x
	)

Definition at line 459 of file samplers.py.

    def eta(self, x):
        self._eta = mksampler(x)
 

mass() [1/2]

def python.samplers.EEtaMPhiSampler.mass

(

self

)

Definition at line 463 of file samplers.py.

    def mass(self):
        "Mass sampler"
        return self._m

mass() [2/2]

def python.samplers.EEtaMPhiSampler.mass	(		self,
			x
	)

Definition at line 467 of file samplers.py.

    def mass(self, x):
        self._m = mksampler(x)
 

phi() [1/2]

def python.samplers.EEtaMPhiSampler.phi

(

self

)

Definition at line 471 of file samplers.py.

    def phi(self):
        "Azimuthal angle sampler"
        return self._phi

phi() [2/2]

def python.samplers.EEtaMPhiSampler.phi	(		self,
			x
	)

Definition at line 475 of file samplers.py.

    def phi(self, x):
        self._phi = mksampler(x)
 

shoot()

def python.samplers.EEtaMPhiSampler.shoot

(

self

)

eta = - ln(tan(theta/2)) / 2
=> theta = 2 atan( exp(-eta) )

Reimplemented from python.samplers.Sampler.

Definition at line 478 of file samplers.py.

    def shoot(self):
        """
        eta = - ln(tan(theta/2)) / 2
        => theta = 2 atan( exp(-eta) )
        """
        eta = self.eta()
        theta = 2 * math.atan(math.exp(-eta))
        e = self.energy()
        m = self.mass()
        p = math.sqrt( e**2 - m**2 )
        pz = p * math.cos(theta)
        pt = p * math.sin(theta)
        phi = self.phi()
        px = pt * math.cos(phi)
        py = pt * math.sin(phi)
        v4 = ROOT.TLorentzVector(px, py, pz, e)
        return v4
 
 

Member Data Documentation

_e

python.samplers.EEtaMPhiSampler._e

private

Definition at line 452 of file samplers.py.

_eta

python.samplers.EEtaMPhiSampler._eta

private

Definition at line 460 of file samplers.py.

_m

python.samplers.EEtaMPhiSampler._m

private

Definition at line 468 of file samplers.py.

_phi

python.samplers.EEtaMPhiSampler._phi

private

Definition at line 476 of file samplers.py.

energy

python.samplers.EEtaMPhiSampler.energy

Definition at line 441 of file samplers.py.

eta

python.samplers.EEtaMPhiSampler.eta

Definition at line 442 of file samplers.py.

mass

python.samplers.EEtaMPhiSampler.mass

Definition at line 443 of file samplers.py.

phi

python.samplers.EEtaMPhiSampler.phi

Definition at line 444 of file samplers.py.

---

The documentation for this class was generated from the following file:

• samplers.py