Radial tail resolution in the SELEX RICH

被引：1
|
作者：
Morelos, A [1 ]
Mata, J
Cooper, PS
Engelfried, J
Aguilera-Servin, JL
机构：
[1] Univ Autonoma San Luis Potosi, San Luis Potosi, Mexico
[2] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2005年 / 553卷 / 1-2期
关键词：
RICH detector;
D O I：
10.1016/j.nima.2005.08.037
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
We use a seven million event data sample of 600 GeV/c single-track pion events, where the pion track is reconstructed upstream and downstream of the SELEX RICH. We build the RICH ring radius histogram distribution and count the tail events that fall outside 5 sigma, giving a fraction of 4 x 10(-5) events outside the Gaussian tails. This control of events establishes the ability of using the RICH as a velocity spectrometer for high-precision searches of the K+ pi+upsilon upsilon decay like it is planned in the CKM experiment. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：237 / 241
页数：5
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