SEARCH FOR HEAVY STABLE PARTICLES

被引：75
作者：
SMITH, PF
BENNETT, JRJ
机构：
[1] Rutherford Laboratory, Chilton, Oxon
来源：
NUCLEAR PHYSICS B | 1979年 / 149卷 / 03期
关键词：
D O I：
10.1016/0550-3213(79)90006-3
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：
A search is made for cosmic ray produced heavy stable particles of unit positive charge in terrestrial water. By electrolysis of 6000 litres of heavy water, small samples are produced with a heavy isotope enrichment factor 3 · 1011 relative to natural water. Comparison of enriched and unenriched samples in a sensitive mass spectrometer showed no evidence for new particles in the mass range 6 to 350 proton masses, giving upper concentration limits in natural water between 2 · 10-22 and 10-21 over most of the mass range. An experiment to improve this limit by a factor of 106 is in progress. © 1979.
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页码：525 / 533
页数：9
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