python.samplers.PtEtaMPhiSampler Class Reference

Inheritance diagram for python.samplers.PtEtaMPhiSampler:

Collaboration diagram for python.samplers.PtEtaMPhiSampler:

Public Member Functions
def	__init__ (self, pt, eta, mass=0.0, phi=[0, TWOPI])
def	pt (self)
def	pt (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
	pt
	eta
	mass
	phi

Private Attributes
	_pt
	_eta
	_m
	_phi

Detailed Description

Definition at line 624 of file samplers.py.

Constructor & Destructor Documentation

__init__()

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

Definition at line 627 of file samplers.py.

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

eta() [1/2]

def python.samplers.PtEtaMPhiSampler.eta

(

self

)

Definition at line 642 of file samplers.py.

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

eta() [2/2]

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

Definition at line 646 of file samplers.py.

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

mass() [1/2]

def python.samplers.PtEtaMPhiSampler.mass

(

self

)

Definition at line 650 of file samplers.py.

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

mass() [2/2]

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

Definition at line 654 of file samplers.py.

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

phi() [1/2]

def python.samplers.PtEtaMPhiSampler.phi

(

self

)

Definition at line 658 of file samplers.py.

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

phi() [2/2]

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

Definition at line 662 of file samplers.py.

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

pt() [1/2]

def python.samplers.PtEtaMPhiSampler.pt

(

self

)

Definition at line 634 of file samplers.py.

    def pt(self):
        "Transverse momentum sampler"
        return self._pt

pt() [2/2]

def python.samplers.PtEtaMPhiSampler.pt	(		self,
			x
	)

Definition at line 638 of file samplers.py.

    def pt(self, x):
        self._pt = mksampler(x)
 

shoot()

def python.samplers.PtEtaMPhiSampler.shoot

(

self

)

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

Reimplemented from python.samplers.Sampler.

Definition at line 665 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))
        pt = self.pt()
        p = pt / math.sin(theta)
        phi = self.phi()
        px = pt * math.cos(phi)
        py = pt * math.sin(phi)
        pz = p * math.cos(theta)
        m = self.mass()
        e = math.sqrt( p**2 + m**2 )
        v4 = ROOT.TLorentzVector(px, py, pz, e)
        return v4
 
 

Member Data Documentation

_eta

python.samplers.PtEtaMPhiSampler._eta

private

Definition at line 647 of file samplers.py.

_m

python.samplers.PtEtaMPhiSampler._m

private

Definition at line 655 of file samplers.py.

_phi

python.samplers.PtEtaMPhiSampler._phi

private

Definition at line 663 of file samplers.py.

_pt

python.samplers.PtEtaMPhiSampler._pt

private

Definition at line 639 of file samplers.py.

eta

python.samplers.PtEtaMPhiSampler.eta

Definition at line 629 of file samplers.py.

mass

python.samplers.PtEtaMPhiSampler.mass

Definition at line 630 of file samplers.py.

phi

python.samplers.PtEtaMPhiSampler.phi

Definition at line 631 of file samplers.py.

pt

python.samplers.PtEtaMPhiSampler.pt

Definition at line 628 of file samplers.py.

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

• samplers.py