Prospects of improving accuracy of the hadronic cross section measurements to the 10-3 level at the VEPP-2000 e+e- collider: experimental and theoretical problems

被引：4
|
作者：
Fedotovich, G. V. [1 ]
机构：
[1] Budker Inst Nucl Phys, Novosibirsk 630090, Russia
来源：
NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 2008年 / 181-82卷
基金：
俄罗斯基础研究基金会;
关键词：
D O I：
10.1016/j.nuclphysbps.2008.09.029
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
The main sources of systematic errors of the hadronic cross section measurements at the CMD-2 and SND detectors at VEPP-2M are discussed. To push down a total systematic error to the per mille accuracy in forthcoming experiments at VEPP-2000 some theoretical calculations and detector parameters should be significantly improved. These. are: trigger and detection efficiencies, determination of the fiducial volume and event selection procedure, radiative corrections and pion losses caused by nuclear interaction with detector material. New results expected in the nearest future are also mentioned.
引用
收藏
页码：146 / 150
页数：5
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