Luminosity measurement in the L3 detector at LEP

被引：115

作者：

Brock, IC

Engler, A

Ferguson, T

Filthaut, F

Kraemer, RW

Merk, M

Rippich, C

Shi, X

Shukla, J

Sutton, RB

Tsipolitis, G

Vogel, H

You, J

Lecoq, P

Bobbink, GJ

Buskens, J

Cerjak, I

Groenstege, H

Koffeman, E

Linde, FL

Raven, G

Rewiersma, P

Schuijlenberg, HWA

deWaard, A

Commichau, V

Hangarter, K

Schmitz, P

机构：

[1] CARNEGIE MELLON UNIV,PITTSBURGH,PA 15213

[2] CERN,CH-1211 GENEVA 23,SWITZERLAND

[3] NIKHEF H,NL-1009 DB AMSTERDAM,NETHERLANDS

[4] RHEIN WESTFAL TH AACHEN,INST PHYS 3,D-52056 AACHEN,GERMANY

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1996年 / 381卷 / 2-3期

基金：

美国安德鲁·梅隆基金会;

关键词：

D O I：

10.1016/S0168-9002(96)00734-6

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

One of the limiting factors in the determination of the electroweak parameters from cross section measurements of e(+)e(-) annihilation close to the Z pole is the precision of the luminosity measurement, The luminosity monitor of the L3 detector at LEP and the analysis of its data are described. Using a combination of a EGO calorimeter and a 3-layer silicon tracker, the absolute luminosity has been measured with an experimental precision of 0.08% in 1993 and 0.05% in 1994. The measurement relies on a detailed understanding of small-angle elastic e(+)e(-) (Bhabha) scattering from the experimental and theoretical point of view, as well as an excellent knowledge of the detector geometry.

引用

页码：236 / 266

页数：31

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