New measurement of the asymmetry parameter for the +p decay

M. Kobayashi, J. Haba, T. Homma, H. Kawai, K. Miyake, T. S. Nakamura, N. Sasao, Y. Sugimoto

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)


The asymmetry parameter ± for the +p decay has been measured with counter techniques. From a sample of about 190 +p decays, the asymmetry parameter is found to be ±=-0.86±0.13±0.04, where the quoted errors are statistical and systematic, respectively. The present result confirms with better accuracy the large and negative value for ± measured by two previous bubble-chamber experiments. The branching ratio is also found to be (1.30±0.15) ×10-3, which is consistent with previous measurements.

Original languageEnglish
Pages (from-to)868-871
Number of pages4
JournalPhysical Review Letters
Issue number8
Publication statusPublished - 1987
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


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