Performance of the PrimEx electromagnetic calorimeter

被引：0
|
作者：
Kubantsev, M. [1 ]
Larin, I. [1 ,2 ]
Gasparian, A. [1 ,3 ]
机构：
[1] Inst Theoret & Expt Phys, Moscow, Russia
[2] Inst Theoret Experimental Phys, Moscow, Russia
[3] N Carolina Agr & Tech State Univ, Dept Phys, Greensboro, NC 27411 USA
来源：
CALORIMETRY IN HIGH ENERGY PHYSICS | 2006年 / 867卷
关键词：
calorimeter; photon; energy resolution;
D O I：
暂无
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
We report the design and performance of the hybrid electromagnetic calorimeter consisting of 1152 PbWO4 crystals and 576 lead glass blocks for the PrimEx experiment at the Jefferson Laboratory. The detector was built for high precision measurement of the neutral pion lifetime via the Primakoff effect. Calorimeter installation and commissioning was completed with the first physics run in fall of 2004. We present the energy and position resolution of the calorimeter. Obtained pi(0) mass resolution of 1.3MeV/c(2) and its production angle resolution of 0.34mrad demonstrate the ability of the experiment to extract the pi(0) lifetime on one percent level.
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页码：51 / +
页数：2
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