jobOption.MyParticleSampler Class Reference

Inheritance diagram for jobOption.MyParticleSampler:

Collaboration diagram for jobOption.MyParticleSampler:

Public Member Functions
	__init__ (self)
	shoot (self)
	__init__ (self)
	shoot (self)

Public Attributes
	mom1 = PG.PtEtaMPhiSampler(pt=25000, eta=[-2,2])
	ip = PG.mksampler([-2,2])

Detailed Description

A special sampler to generate single particles flat in 1/pT and in
impact parameter to the beam, with flat z0.

Definition at line 10 of file jobOption.ParticleGun_correlated.py.

Constructor & Destructor Documentation

__init__() [1/2]

jobOption.MyParticleSampler.__init__

(

self

)

Definition at line 13 of file jobOption.ParticleGun_correlated.py.

    def __init__(self):
        self.mom1 = PG.PtEtaMPhiSampler(pt=25000, eta=[-2,2])
 

__init__() [2/2]

jobOption.MyParticleSampler.__init__

(

self

)

Definition at line 16 of file jobOption.ParticleGun_flatcurvature_flatip.py.

    def __init__(self):
        psamp = PG.PtEtaMPhiSampler(pt=PG.InvSampler(4000, 400000), eta=[0.1,0.3], phi=[0.3, 0.5])
        xsamp = PG.PosSampler(0, 0, [-150,150], 0)
        PG.ParticleSampler.__init__(self, pid={13,-13}, mom=psamp, pos=xsamp)
        self.ip = PG.mksampler([-2,2])
 

Member Function Documentation

shoot() [1/2]

jobOption.MyParticleSampler.shoot

(

self

)

Definition at line 16 of file jobOption.ParticleGun_correlated.py.

    def shoot(self):
        "Return a vector of sampled particles"
        p1 = PG.SampledParticle(11, self.mom1.shoot())
        eta1 = p1.mom.Eta()
        phi1 = p1.mom.Phi()
        # TODO: will phi be properly wrapped into range?
        mom2 = PG.PtEtaMPhiSampler(pt=25000,
                                   eta=[eta1-0.5, eta1+0.5],
                                   phi=[phi1-0.5, phi1+0.5])
        p2 = PG.SampledParticle(11, mom2.shoot())
        return [p1, p2]
 

shoot() [2/2]

jobOption.MyParticleSampler.shoot

(

self

)

Definition at line 22 of file jobOption.ParticleGun_flatcurvature_flatip.py.

    def shoot(self):
        "Return a vector of sampled particles"
        ps = PG.ParticleSampler.shoot(self)
        assert len(ps) == 1
        p = ps[0]
        from math import sqrt
        m = -p.mom.X() / p.mom.Y() #< gradient of azimuthal IP sampling line, perp to mom
        x = self.ip() / sqrt(1 + m**2) #< just decomposing sampled IP into x component...
        y = m*x #< ... and y-component
        p.pos.SetX(x)
        p.pos.SetY(m*x)
        return [p]
 

Member Data Documentation

ip

jobOption.MyParticleSampler.ip = PG.mksampler([-2,2])

Definition at line 20 of file jobOption.ParticleGun_flatcurvature_flatip.py.

mom1

jobOption.MyParticleSampler.mom1 = PG.PtEtaMPhiSampler(pt=25000, eta=[-2,2])

Definition at line 14 of file jobOption.ParticleGun_correlated.py.

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

• jobOption.ParticleGun_correlated.py
• jobOption.ParticleGun_flatcurvature_flatip.py