期刊
PHYSICS LETTERS B
卷 647, 期 1, 页码 18-22出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2007.01.047
关键词
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A search for Q-balls has been carried out in Super-Kamiokande II with 541.7 days of live time. A neutral Q-ball passing through the detector can interact with nuclei to produce pions, generating a signal of successive contained pion events along a track. No candidate for successive contained event groups has been found in Super-Karmokande II, so we obtain upper limits on the flux of such Q-balls. (c) 2007 Elsevier B.V. All rights reserved.
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