학술논문
Tagging of η mesons using the pd → 3 Heη reaction near threshold.
Document Type
Article
Author
Source
Subject
*MESONS
*NUCLEAR reactions
*SPECTRUM analysis instruments
*PROPERTIES of matter
*ELECTRONS
*HADRONS
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*
*
*
*
Language
ISSN
0020-4412
Abstract
A zero-degree spectrometer for tagging η mesons on the CELSIUS/WASA facility is described, and its characteristics are presented. Tagging of η mesons is performed by detecting ³He ions produced by reaction pd → ³Heη close to the production threshold. The low background level (<2%) is in good agreement with the data obtained earlier on the SATURNE accelerator. [ABSTRACT FROM AUTHOR]