PileUp

Description

Contains all relevant information to apply PU staub sauger, profile reweighting, and JER (re)smearing

TWiki

#include <Objects.h>

Public Member Functions
float	GetTrPU (const char='0') const
float	GetIntPU (const char='0') const
float	GetIntPU (TRandom3 &, const char='0') const
void	clear ()
	PileUp ()

Public Attributes
float	rho
int	nVtx
float	trpu
int	intpu
float	pthatMax

Static Public Attributes
static float	MBxsec = 69200
static float	MBxsecRelUnc = 0.046

Constructor & Destructor Documentation

PileUp()

PileUp

(

)

: rho(0), nVtx(0), trpu(0), intpu(0), pthatMax(0) { }

Member Function Documentation

clear()

void clear

(

)

resets all members to the same values as in the constructor

{
    rho = 0;
    nVtx = 0;
    trpu = 0;
    intpu = 0;
    pthatMax = 0;
}

GetIntPU() [1/2]

float GetIntPU

(

const char

v = '0'

)

const

in-time pile-up variations

{
    switch (v) {
        case '+': return intpu * (1+MBxsecRelUnc);
        case '-': return intpu * (1-MBxsecRelUnc);
        case '0':
        default:  return intpu;
    }
}

GetIntPU() [2/2]

float GetIntPU	(	TRandom3 &	r3,
		const char	v = '0'
	)		const

estimate in-time pileup on the fly from the true pileup (useful in MC to generate a profile)

{
    float trpu = GetTrPU(v);
    return r3.Poisson(trpu);
}

GetTrPU()

float GetTrPU

(

const char

v = '0'

)

const

true pile-up variations

{
    switch (v) {
        case '+': return trpu * (1+MBxsecRelUnc);
        case '-': return trpu * (1-MBxsecRelUnc);
        case '0': 
        default:  return trpu;
    }
}

Member Data Documentation

intpu

int intpu

in-time pile-up (i.e. from the same bunch crossing)

MBxsec

float MBxsec = 69200

static

minimum-bias cross section

MBxsecRelUnc

float MBxsecRelUnc = 0.046

static

relative uncertainty on minimum-bias cross section

nVtx

int nVtx

number of vertices in the event

pthatMax

float pthatMax

hard-scale of the hardest pile-up event (to deal with anomalous events)

rho

float rho

soft activity (see formula 7.15 in Patrick's thesis)

trpu

float trpu

true pile-up

---

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

• /builds/Proto/Darwin/interface/Objects.h
• /builds/Proto/Darwin/src/Objects.cc