Electron reconstruction and identification at sqrt(s) = 7 TeV - INSPIRE

DataBETA

Electron reconstruction and identification at sqrt(s) = 7 TeV

CMS

Collaboration

2010

19 pages

Published: 2010

Report number:

CMS-PAS-EGM-10-004,
CMS-PAS-EGM-10-004

Experiments:

CERN-LHC-CMS,
CERN-LHC-CMS

View in:

CERN Document Server

reference search382 citations

Citations per year

Abstract: (CDS)

We present results on the commissioning of CMS electron reconstruction and identification using the first LHC collisions at

\surd

s = 7 TeV recorded by the CMS detector, corresponding to an integrated luminosity of

\sim

200 nb

{}^{-1}

. The electron and photon Level 1 and High Level Trigger efficiencies have been measured from data. The main observables for CMS electron reconstruction, identification, isolation and conversion rejection have been measured and compared to Monte Carlo simulation. The performance of the electron reconstruction and identification has been studied on data. Different selections proposed to be used in physics studies with electrons are studied and compared to the Monte Carlo expectations.

Note:

Preliminary results •
CMS Physics Analysis Summary - preliminary results

Data

References(15)

Figures(9)

[1]

Electromagnetic physics objects commissioning with first LHC data

CMS Collaboration

Collaboration

[2]

The CMS Experiment at the CERN LHC

CMS

Collaboration

•

S. Chatrchyan
(
- Yerevan Phys. Inst.
)

et al.

- JINST 3 (2008) S08004
•
DOI:
- 10.1088/1748-0221/3/08/S08004

[3]

Electron reconstruction in CMS

S. Baffioni
(
- Ecole Polytechnique
)
,
C. Charlot
(
- Ecole Polytechnique
)
,
F. Ferri
(
- Ecole Polytechnique
)
,
D. Futyan
(
- UCLA
)
,
P. Meridiani
(
- U. Rome La Sapienza (main)
)

et al.

- Eur.Phys.J.C 49 (2007) 1099-1116
•
DOI:
- 10.1140/epjc/s10052-006-0175-5

[4]

Electromagnetic calorimeter commissioning and performance with 7 TeV data

CMS Collaboration

Collaboration

[5]

Commissioning of the Particle-flow Event Reconstruction with the first LHC collisions recorded in the CMS detector

CMS Collaboration

Collaboration

[6]

High-energy physics event generation with PYTHIA 6.1

et al.

- Comput.Phys.Commun. 135 (2001) 238-259
•
e-Print:
- hep-ph/0010017
•
DOI:
- 10.1016/S0010-4655(00)00236-8

[7]

New generation of parton distributions with uncertainties from global QCD analysis

J. Pumplin
(
- Michigan State U.
)
,
D.R. Stump
(
- Michigan State U.
)
,
J. Huston
(
- Michigan State U.
)
,
H.L. Lai
(
- Michigan State U.
)
,
Pavel M. Nadolsky
(
- Michigan State U.
)

et al.

- JHEP 07 (2002) 012
•
e-Print:
- hep-ph/0201195
•
DOI:
- 10.1088/1126-6708/2002/07/012

[8]

GEANT4 - A Simulation Toolkit

GEANT4

Collaboration

•

S. Agostinelli
(
- Genoa U.
)

et al.

- Nucl.Instrum.Meth.A 506 (2003) 250-303
•
DOI:
- 10.1016/S0168-9002(03)01368-8

[9]

CMS Physics : Technical Design Report Volume 1: Detector Performance and Software

CMS

Collaboration

•

G. L. Bayatian
(
- Yerevan Phys. Inst.
)

et al.

DOI:
- 10.2172/2510878

[9]

Cic Loose

[9]

Cic SuperTight

[10]

Reconstruction of electrons with the Gaussian sum filter in the CMS tracker at LHC

- eConf C0303241 (2003) TULT009,
- J.Phys.G 31 (2005) N9
•
e-Print:
- physics/0306087
•
DOI:
- 10.1088/0954-3899/31/9/N01

[11]

Measuring Electron Efficiencies at CMS with Early Data

CMS

Collaboration

[12]

SPlot: A Statistical tool to unfold data distributions

Muriel Pivk
(
- CERN
)
,
Francois R. Le Diberder
(
- Orsay, LAL
)

- Nucl.Instrum.Meth.A 555 (2005) 356-369
•
e-Print:
- physics/0402083
•
DOI:
- 10.1016/j.nima.2005.08.106

[12]

sPlots

W. Ml