Position resolution and particle identification with the ATLAS EM calorimeter

被引：22

作者：

Colas, J

Di Ciaccio, L

El Kacimi, M

Gaumer, O

Gouanère, M

Goujdami, D

Lafaye, R

Le Maner, C

Neukermans, L

Perrodo, P

Poggioli, L

Prieur, D

Przysieznlak, H

Sauvage, G

Wingerter-Seez, I

Zitoun, R

Lanni, F

Ma, H

Rajagopalan, S

Rescia, S

Takai, H

Belymam, A

Benchekroun, D

Hakimi, M

Hoummada, A

Barberio, E

Gao, YS

Lu, L

Stroynowski, R

Aleksa, M

Hansen, JB

Carli, T

Fassnacht, P

Gianotti, F

Hervas, L

Lampl, W

Belhorma, B

Collot, J

Gallin-Martel, ML

Hostachy, JY

Ledroit-Guillon, F

Martin, P

Ohlsson-Malek, F

Saboumazrag, S

Viret, S

Leltchouk, M

Parsons, JA

Seman, M

Barreiro, F

Del Peso, J

机构：

[1] CNRS, LAPP, IN2P3, F-74941 Annecy Le Vieux, France

[2] Brookhaven Natl Lab, Upton, NY 11973 USA

[3] Fac Sci Ain Chock, Casablanca, Morocco

[4] So Methodist Univ, Dallas, TX 75275 USA

[5] CERN, European Lab Particle Phys, CH-1211 Geneva, Switzerland

[6] Univ Grenoble 1, Lab Phys Subatom & Cosmol, F-38026 St Martin Dheres, France

[7] Columbia Univ, Nevis Labs, Irvington, NY 10533 USA

[8] Univ Autonoma Madrid, Dept Phys, Madrid, Spain

[9] Univ Mediterranee, IN2P3, CNRS, Ctr Phys Particules Marseille, F-13288 Marseille, France

[10] Univ Milan, Dipartimento Fis, I-20133 Milan, Italy

[11] Ist Nazl Fis Nucl, I-20133 Milan, Italy

[12] Budker Inst Nucl Phys, RU-630090 Novosibirsk, Russia

[13] Univ Paris 11, Lab Accelerateur Lineaire, IN2P3, CNRS, F-91898 Orsay, France

[14] Univ Mohammed Premier, Lab Phys Theor & Phys Particules, Oujda, Morocco

[15] Univ Paris 06, Lab Phys Nucl & Hautes Energies, F-75252 Paris, France

[16] Univ Paris 07, Lab Phys Nucl & Hautes Energies, F-75252 Paris, France

[17] Univ Mohammed 5, Fac Sci, Rabat, Morocco

[18] Ctr Natl Energie Sci & Tech Nucl, Rabat, Morocco

[19] CE Saclay, DAPNIA, Serv Phys Particules, CEA, F-91191 Gif Sur Yvette, France

[20] Royal Inst Technol, Stockholm, Sweden

[21] KFKI, Budapest, Hungary

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2005年 / 550卷 / 1-2期

关键词：

calorimeters; particle physics;

D O I：

10.1016/j.nima.2005.05.041

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

In the years between 2000 and 2002 several pre-series and series modules of the ATLAS EM barrel and end-cap calorimeter were exposed to electron, photon and pion beams. The performance of the calorimeter with respect to its finely segmented first sampling has been studied. The polar angle resolution has been found to be in the range 50-60 (mrad)/root E(GeV). The pi(0) rejection has been measured to be about 3.5 for 90% photon selection efficiency at PT = 50GeV/c. e-pi separation studies have indicated that a pion fake rate of (0.07-0.5)% can be achieved while maintaining 90% electron identification efficiency for energies up to 40 GeV. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：96 / 115

页数：20

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