Search for a neutral boson in a two-body decay of K+→π+X0

T. Yamazaki, T. Ishikawa, T. Taniguchi, T. Yamanaka, T. Tanimori, R. Enomoto, A. Ishibashi, S. Sato, Y. Akiba, M. Iwasaki, T. Fujii, R. S. Hayano, S. Schnetzer

Research output: Contribution to journalArticlepeer-review

41 Scopus citations


The momentum spectrum of the π+ in stopping K+ decays was measured by use of a high-resolution magnetic spectrometer to search for a discrete peak due to a neutral boson X0 in a two-body decay K+→π+X0. An upper bound of the branching ratio R (K+→π+X0) is presented for the mass range of X0 from 10 to 300 MeV/c2.

Original languageEnglish (US)
Pages (from-to)1089-1091
Number of pages3
JournalPhysical review letters
Issue number13
StatePublished - 1984
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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