ATLAS

egammaPID determination

ElIsEMMask is an Athena algorithm that will print the IsEM masks for the Athena release it is run with.

Usage

Set up Athena with your desired version and change to your TestArea, e.g.:

source cmthome/setup.sh -tag=14.5.0
cd $TestArea

The program package is in the SVN: https://svnsrv.desy.de/k5viewvc/atlas/Top/clange/Athena/ElIsEMMask/. Check it out to your TestArea:

svn co https://svnsrv.desy.de/desy/atlas/Top/clange/Athena/ElIsEMMask/trunk ElIsEMMask

If you use Athena release 14, do instead:

svn co https://svnsrv.desy.de/desy/atlas/Top/clange/Athena/ElIsEMMask/tags/ElIsEMMask-14-05-00 ElIsEMMask

Go to the cmt directory of the package and compile:

cd ElIsEMMask/cmt
cmt config
source setup.sh
cmt make

Run the program (no output files will be produced):

athena ../share/ElIsEMMask_jobOptions.py

All information will be printed within the program's INFO output.

Results for different Athena releases

In release 15 additional isolation variables have been introduced with the Iso appendix. To distinguish those more easily, the non-isolated variables a la Medium are now additionally available as MediumNonIso (but they are the same, i.e. Medium = MediumNonIso).

release

Loose

Medium

MediumIso

Tight

TightIso

>= 15.2.0

0x5d

0x1ebf5d

0x201ebf5d

0x37fbf5d

0x237fbf5d

14.5.0.6

0xf3

0x1e7ff3

---

0x37f7ff3

---

For details on the cuts refer to http://alxr.usatlas.bnl.gov/lxr/source/atlas/Reconstruction/egamma/egammaEvent/egammaEvent/egammaPIDdefs.h

Further details

// new definitions of cuts as in rel>=15.2.0
// @brief Loose electron selection
const unsigned int ElectronLoose = 
CALOMIDDLE_ELECTRON | HADLEAKETA_ELECTRON;
// @brief Medium electron selection
const unsigned int ElectronMedium = 
CALO_ELECTRON | TRACKINGNOBLAYER_ELECTRON | TRACKMATCHDETA_ELECTRON;
// @brief Medium electron selection with isolation requirement
const unsigned int ElectronMediumIso = 
CALO_ELECTRON | TRACKINGNOBLAYER_ELECTRON | TRACKMATCHDETA_ELECTRON | ISOLATION_ELECTRON;
// @brief obsolete - kept not crash clients
const unsigned int ElectronMediumNoIso = ElectronMedium;
// @brief Tight electron selection
const unsigned int ElectronTight = 
CALO_ELECTRON | TRACKING_ELECTRON | TRACKMATCH_ELECTRON | TRT_ELECTRON ;
// @brief obsolete - kept not to crash clients
const unsigned int ElectronTightTRTNoIso = ElectronTight;
// @brief obsolete - kept not to crash clients
const unsigned int ElectronTightNoIsolation = ElectronTight;
// @brief Tight electron selection with isolation requirement
const unsigned int ElectronTightIso = 
CALO_ELECTRON | TRACKING_ELECTRON | TRACKMATCH_ELECTRON | TRT_ELECTRON | ISOLATION_ELECTRON;

more detailed:

// @brief all cuts in calorimeter (except isolation)
const unsigned int CALO_ELECTRON = HADLEAKETA_ELECTRON | CALOSTRIPS_ELECTRON | CALOMIDDLE_ELECTRON ;

and now the highest detail

// @brief cuts of hadronic leakage
const unsigned int HADLEAKETA_ELECTRON = 
0x1 << ClusterEtaRange_Electron        | 
0x1 << ClusterHadronicLeakage_Electron;

// @brief cuts in strips (with ClusterStripsDEmaxs1)
const unsigned int CALOSTRIPS_ELECTRON =
0x1 << ClusterStripsEratio_Electron     |
0x1 << ClusterStripsDeltaEmax2_Electron |
0x1 << ClusterStripsDeltaE_Electron     |
0x1 << ClusterStripsWtot_Electron       |
0x1 << ClusterStripsFracm_Electron      |
0x1 << ClusterStripsWeta1c_Electron     |
0x1 << ClusterStripsDEmaxs1_Electron    ;

//@brief cuts in middle sampling
const unsigned int CALOMIDDLE_ELECTRON =    
0x1 << ClusterMiddleEnergy_Electron     |
0x1 << ClusterMiddleEratio37_Electron   |
0x1 << ClusterMiddleWidth_Electron     ;

// @brief Track quality cuts except b-layer for electrons
const unsigned int TRACKINGNOBLAYER_ELECTRON =     
0x1 << TrackPixel_Electron   |
0x1 << TrackSi_Electron      |
0x1 << TrackA0_Electron;

// @brief Track cluster matching in eta for electrons
const unsigned int TRACKMATCHDETA_ELECTRON =
0x1 << TrackMatchEta_Electron;

In the anti-electron note they require 2 or 3 of the following cuts to fail:

These cuts are ID cuts and NOT kinematic cuts that might bias the distributions!

detailed masks for rel. 15.5.1

ElectronLoose

0x5d

ElectronMedium

0x1ebf5d

ElectronTight

0x37fbf5d

HADLEAKETA_ELECTRON

0x5

ClusterEtaRange_Electron

0x1

ClusterHadronicLeakage_Electron

0x4

CALOSTRIPS_ELECTRON

0xbf00

ClusterStripsEratio_Electron

0x100

ClusterStripsDeltaEmax2_Electron

0x200

ClusterStripsDeltaE_Electron

0x400

ClusterStripsWtot_Electron

0x800

ClusterStripsFracm_Electron

0x1000

ClusterStripsWeta1c_Electron

0x2000

ClusterStripsDEmaxs1_Electron

0x8000

CALOMIDDLE_ELECTRON

0x58

ClusterMiddleEnergy_Electron

0x8

ClusterMiddleEratio37_Electron

0x10

ClusterMiddleWidth_Electron

0x40

TRACKINGNOBLAYER_ELECTRON

0xe0000

TrackPixel_Electron

0x20000

TrackSi_Electron

0x40000

TrackA0_Electron

0x80000

TRACKMATCHDETA_ELECTRON

0x100000

TrackMatchEta_Electron

0x100000

TrackBlayer_Electron

0x10000

detailed masks for rel. 15.6.9.8

ElectronLoose

0x5d

93

ElectronMedium

0x1ebf5d

2015069

ElectronMedium + b-layer

0x1fbf5d

2080605

ElectronTight

0x1b7fbf5f

461356895

HADLEAKETA_ELECTRON

0x5

ClusterEtaRange_Electron

0x1

ClusterHadronicLeakage_Electron

0x4

CALOSTRIPS_ELECTRON

0xbf00

ClusterStripsEratio_Electron

0x100

ClusterStripsDeltaEmax2_Electron

0x200

ClusterStripsDeltaE_Electron

0x400

ClusterStripsWtot_Electron

0x800

ClusterStripsFracm_Electron

0x1000

ClusterStripsWeta1c_Electron

0x2000

ClusterStripsDEmaxs1_Electron

0x8000

CALOMIDDLE_ELECTRON

0x58

ClusterMiddleEnergy_Electron

0x8

ClusterMiddleEratio37_Electron

0x10

ClusterMiddleWidth_Electron

0x40

TRACKINGNOBLAYER_ELECTRON

0xe0000

TrackPixel_Electron

0x20000

TrackSi_Electron

0x40000

TrackA0_Electron

0x80000

TRACKMATCHDETA_ELECTRON

0x100000

TrackMatchEta_Electron

0x100000

TRACKING_ELECTRON

0xf0000

TrackBlayer_Electron

0x10000

TRACKMATCH_ELECTRON

0x700000

TrackMatchEta_Electron

0x100000

TrackMatchPhi_Electron

0x200000

TrackMatchEoverP_Electron

0x400000

TRACKMATCHTIGHT_ELECTRON

0x18000000

TrackMatchEtaTight_Electron

0x10000000

TrackA0Tight_Electron

0x8000000

CONVMATCH_ELECTRON

0x2

ConversionMatch_Electron

0x2

TRT_ELECTRON

0x3000000

TrackTRThits_Electron

0x1000000

TrackTRTratio_Electron

0x2000000

detailed masks for rel. 15.6.12.9.1

ElectronLoose

93

5d

ElectronMedium

2015069

1ebf5d

ElectronMediumIso

538885981

201ebf5d

ElectronTight

461356895

1b7fbf5f

ElectronTightIso

998227807

3b7fbf5f

CALOMIDDLE_ELECTRON

88

58

HADLEAKETA_ELECTRON

5

5

CALO_ELECTRON

48989

bf5d

TRACKINGNOBLAYER_ELECTRON

917504

e0000

TRACKMATCHDETA_ELECTRON

1048576

100000

CALOSTRIPS_ELECTRON

48896

bf00

CALO_ELECTRON | TRACKINGNOBLAYER_ELECTRON

966493

ebf5d

TRACKING_ELECTRON

983040

f0000

TRACKMATCH_ELECTRON

7340032

700000

TRACKMATCHTIGHT_ELECTRON

402653184

18000000

CONVMATCH_ELECTRON

2

2

TRT_ELECTRON

50331648

3000000

ClusterEtaRange_Electron

1

1

ConversionMatch_Electron

2

2

ClusterHadronicLeakage_Electron

4

4

ClusterMiddleEnergy_Electron

8

8

ClusterMiddleEratio37_Electron

16

10

ClusterMiddleEratio33_Electron

32

20

ClusterMiddleWidth_Electron

64

40

ClusterHadronicLeakage_Electron | ClusterEtaRange_Electron

5

5

ClusterStripsEratio_Electron

256

100

ClusterStripsDeltaEmax2_Electron

512

200

ClusterStripsDeltaE_Electron

1024

400

ClusterStripsWtot_Electron

2048

800

ClusterStripsFracm_Electron

4096

1000

ClusterStripsWeta1c_Electron

8192

2000

ClusterStripsDEmaxs1_Electron

32768

8000

TrackBlayer_Electron

65536

10000

TrackPixel_Electron

131072

20000

TrackSi_Electron

262144

40000

TrackA0_Electron

524288

80000

TrackMatchEta_Electron

1048576

100000

TrackMatchPhi_Electron

2097152

200000

TrackMatchEoverP_Electron

4194304

400000

TrackTRThits_Electron

16777216

1000000

TrackTRTratio_Electron

33554432

2000000

TrackTRTratio90_Electron

67108864

4000000

TrackA0Tight_Electron

134217728

8000000

TrackMatchEtaTight_Electron

268435456

10000000

Isolation_Electron

536870912

20000000

ClusterIsolation_Electron

1073741824

40000000

TrackIsolation_Electron

-2147483648

80000000

ATLAS: ClemensLange/egammaPID (last edited 2010-12-07 14:42:17 by ClemensLange)