PyAlgorithmExample Namespace Reference

Classes
class	Args
class	Holder
class	Parthists
class	Parthists_Ele
class	Parthists_Muo
class	Parthists_Taujet
class	Parthists_Z
class	Partlisthists
class	PyAlgorithmExample
	The example algorithm. More...
class	PyCompositeParticle
class	Z

Functions
def	mybook (name, n, lo, hi)
def	min_dr (p, l)
def	neutrinos_from_colinear_approximation (a, b, metx, mety)
def	Partlisthists_Ele (name)
def	Partlisthists_Muo (name)
def	Partlisthists_Taujet (name)
def	Partlisthists_Z (name, m_max=250 *GeV)
def	fulldata (p)

Variables
int	EoverP = 0
float	MZ = 91.19*GeV

Function Documentation

fulldata()

def PyAlgorithmExample.fulldata

(

p

)

Definition at line 332 of file PyAlgorithmExample.py.

def fulldata (p):
    dt = p.dataType()
    return dt != ParticleDataType.Fast and dt != ParticleDataType.True
 
 

min_dr()

def PyAlgorithmExample.min_dr	(		p,
			l
	)

Definition at line 57 of file PyAlgorithmExample.py.

def min_dr (p, l):
    hlv = p.hlv()
    dr = 999
    ppmin = None
    for pp in l:
        this_dr = hlv.deltaR (pp.hlv())
        if this_dr < dr:
            dr = this_dr
            ppmin = pp
    return (dr, ppmin)
 
 
#
# Basic histograms for a particle: pt, eta, phi.
#

mybook()

def PyAlgorithmExample.mybook	(		name,
			n,
			lo,
			hi
	)

Definition at line 41 of file PyAlgorithmExample.py.

def mybook (name, n, lo, hi):
    # This will make a AIDA histogram.
    # I don't use this because i want to use all root methods
    # on the histograms, and i also want to be able to use root_pickle
    # with them.
    #return book ("/stat/" + name, name, n, lo, hi)
 
    # This will make a native root histogram.
    gROOT.cd() # otherwise, we can get hists created in input files...
    return TH1F (name, name, n, lo, hi)
 
 
#
# Find the particle in list L closest in DR to the particle P.
# return a list (DR, PMIN), where PMIN is that closest particle.
#

neutrinos_from_colinear_approximation()

def PyAlgorithmExample.neutrinos_from_colinear_approximation	(		a,
			b,
			metx,
			mety
	)

Definition at line 136 of file PyAlgorithmExample.py.

def neutrinos_from_colinear_approximation (a, b, metx, mety):
  # numerator
  numerator = a.px()*b.py() - a.py()*b.px()
 
  # fraction
  x_a = numerator/(b.py()*(a.px()+metx)-b.px()*(a.py()+mety))
  x_b = numerator/(a.px()*(b.py()+mety)-a.py()*(b.px()+metx))
 
  def make_nu (p, scale):
      hlv = p.hlv()
      hlv *= scale
      hlv.setE(hlv.vect().mag())
      # Below should really be Neutrino instead of TruthParticle.
      # But as of 10.2.0, anyway, Neutrino doesn't get dictionary
      # information generated.
      nu = g.TruthParticle()
      nu.set4Mom (hlv)
      return nu
 
  return  (make_nu (a, 1./x_a - 1),
           make_nu (b, 1./x_b - 1))
 
 
 
#
# Like CompositeParticle, but a) behaves like a python sequence, and
# b) remembers the original python objects.  (If we put an object
# into CompositeParticle and then get it out again, it will be
# a different python object.)
#

Partlisthists_Ele()

def PyAlgorithmExample.Partlisthists_Ele

(

name

)

Definition at line 234 of file PyAlgorithmExample.py.

def Partlisthists_Ele (name):
    return Partlisthists (name, Parthists_Ele (name))
 
 
 
#
# Define histograms for muons.
# This is based on the generic Parthists set of histograms,
# and adds additional ones specifically for muons.
#

Partlisthists_Muo()

def PyAlgorithmExample.Partlisthists_Muo

(

name

)

Definition at line 254 of file PyAlgorithmExample.py.

def Partlisthists_Muo (name):
    return Partlisthists (name, Parthists_Muo (name))
 
 
 
#
# Define histograms for tau jets.
# This is based on the generic Parthists set of histograms,
# and adds additional ones specifically for tau jets.
#

Partlisthists_Taujet()

def PyAlgorithmExample.Partlisthists_Taujet

(

name

)

Definition at line 300 of file PyAlgorithmExample.py.

def Partlisthists_Taujet (name):
    return Partlisthists (name, Parthists_Taujet (name))
 
 
 
#
# Define histograms for Z-like particles.
# This is based on the generic Parthists set of histograms,
# and adds additional ones specifically for Z's and H's.
#

Partlisthists_Z()

def PyAlgorithmExample.Partlisthists_Z	(		name,
			m_max = 250*GeV
	)

Definition at line 322 of file PyAlgorithmExample.py.

def Partlisthists_Z (name, m_max = 250*GeV):
    return Partlisthists (name, Parthists_Z (name, m_max))
 
 
 
 
#
# Helper to test the data type of P.
# Returns true if it's from full simulation.
#

Variable Documentation

EoverP

int PyAlgorithmExample.EoverP = 0

Definition at line 122 of file PyAlgorithmExample.py.

MZ

float PyAlgorithmExample.MZ = 91.19*GeV

Definition at line 129 of file PyAlgorithmExample.py.