group Experiment-specific electron efficiency and smearing functions

Experiment-specific electron efficiency and smearing functions #

Module: Detector smearing & efficiency functions

Functions ##

Functions Documentation ##

function ELECTRON_RECOEFF_ATLAS_RUN1 ##

inline double ELECTRON_RECOEFF_ATLAS_RUN1(
    const Particle & e
)

Todo: Include reco eff (but no e/y discrimination) in forward region

ATLASRun 1 electron reconstruction efficiency

function ELECTRON_RECOEFF_ATLAS_RUN2 ##

inline double ELECTRON_RECOEFF_ATLAS_RUN2(
    const Particle & e
)

ATLASRun 2 electron reco efficiency

Based on https://arxiv.org/pdf/1902.04655.pdf Fig 2

function ELECTRON_EFF_ATLAS_RUN2_LOOSE ##

inline double ELECTRON_EFF_ATLAS_RUN2_LOOSE(
    const Particle & e
)

ATLASRun 2 ’loose’ electron reco+identification efficiency.

Todo: What about faking by jets or non-electrons?

Values read from Fig 3 of ATL-PHYS-PUB-2015-041

function ELECTRON_EFF_ATLAS_RUN1_MEDIUM ##

inline double ELECTRON_EFF_ATLAS_RUN1_MEDIUM(
    const Particle & e
)

ATLASRun 1 ‘medium’ electron reco+identification efficiency.

function ELECTRON_EFF_ATLAS_RUN2_MEDIUM ##

inline double ELECTRON_EFF_ATLAS_RUN2_MEDIUM(
    const Particle & e
)

ATLASRun 2 ‘medium’ electron reco+identification efficiency.

~1% increase over Run 1 informed by Fig 1 in https://cds.cern.ch/record/2157687/files/ATLAS-CONF-2016-024.pdf

function ELECTRON_EFF_ATLAS_RUN1_TIGHT ##

inline double ELECTRON_EFF_ATLAS_RUN1_TIGHT(
    const Particle & e
)

ATLASRun 1 ’tight’ electron reco+identification efficiency.

function ELECTRON_EFF_ATLAS_RUN2_TIGHT ##

inline double ELECTRON_EFF_ATLAS_RUN2_TIGHT(
    const Particle & e
)

ATLASRun 2 ’tight’ electron reco+identification efficiency.

~1% increase over Run 1 informed by Fig 1 in https://cds.cern.ch/record/2157687/files/ATLAS-CONF-2016-024.pdf

function ELECTRON_SMEAR_ATLAS_RUN1 ##

inline Particle ELECTRON_SMEAR_ATLAS_RUN1(
    const Particle & e
)

ATLASRun 1 electron reco smearing.

function ELECTRON_SMEAR_ATLAS_RUN2 ##

inline Particle ELECTRON_SMEAR_ATLAS_RUN2(
    const Particle & e
)

Todo: Currently just a copy of the Run 1 version: fix!

ATLASRun 2 electron reco smearing

function ELECTRON_EFF_CMS_RUN1 ##

inline double ELECTRON_EFF_CMS_RUN1(
    const Particle & e
)

CMS Run 1 electron reconstruction efficiency.

Todo: Add charge flip efficiency?

function ELECTRON_EFF_CMS_RUN2 ##

inline double ELECTRON_EFF_CMS_RUN2(
    const Particle & e
)

Todo: Currently just a copy of Run 1: fix!

CMS Run 2 electron reco efficiency

function ELECTRON_SMEAR_CMS_RUN1 ##

inline Particle ELECTRON_SMEAR_CMS_RUN1(
    const Particle & e
)

CMS electron energy smearing, preserving direction.

Calculate resolution for pT > 0.1 GeV, E resolution = |eta| < 0.5 -> sqrt(0.06^2 + pt^2 * 1.3e-3^2) |eta| < 1.5 -> sqrt(0.10^2 + pt^2 * 1.7e-3^2) |eta| < 2.5 -> sqrt(0.25^2 + pt^2 * 3.1e-3^2)

function ELECTRON_SMEAR_CMS_RUN2 ##

inline Particle ELECTRON_SMEAR_CMS_RUN2(
    const Particle & e
)

Todo: Currently just a copy of the Run 1 version: fix!

CMS Run 2 electron reco smearing

Updated on 2022-08-07 at 20:17:18 +0100