Search for KL0'e and KL0'ee decays

T. Inagaki; M. Kobayashi; T. Sato; T. Shinkawa; F. Suekane; K. Takamatsu; Y. Yoshimura; K. Ishikawa; T. Kishida; T. K. Komatsubara; M. Kuze; F. Sai; J. Toyoura; S. S. Yamamoto; Y. Hemmi

doi:10.1103/PhysRevD.40.1712

Search for KL0'e and KL0'ee decays

T. Inagaki, M. Kobayashi, T. Sato, T. Shinkawa, F. Suekane, K. Takamatsu, Y. Yoshimura, K. Ishikawa, T. Kishida, T. K. Komatsubara, M. Kuze, F. Sai, J. Toyoura, S. S. Yamamoto, Y. Hemmi

Research output: Contribution to journal › Article › peer-review

29 Citations (Scopus)

Abstract

We report on the present status of a search for the rare decays KL0'e and KL0'ee at the KEK 12-GeV Proton Synchrotron. We found no KL0'e or KL0'ee events and found 54 KL0' events. The upper limits of the KL0'e and KL0'ee branching ratios are B(KL0'e)<4.3×10-10 and B(KL0'ee)<5.6×10-10 at 90% confidence level. The 54 KL0' events correspond to an absolute branching ratio of (8.41.1)×10-9.

Original language	English
Pages (from-to)	1712-1715
Number of pages	4
Journal	Physical Review D
Volume	40
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevD.40.1712
Publication status	Published - 1989 Jan 1
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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Search for KL0'e and KL0'ee decays. / Inagaki, T.; Kobayashi, M.; Sato, T.; Shinkawa, T.; Suekane, F.; Takamatsu, K.; Yoshimura, Y.; Ishikawa, K.; Kishida, T.; Komatsubara, T. K.; Kuze, M.; Sai, F.; Toyoura, J.; Yamamoto, S. S.; Hemmi, Y.

In: Physical Review D, Vol. 40, No. 5, 01.01.1989, p. 1712-1715.

Research output: Contribution to journal › Article › peer-review

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abstract = "We report on the present status of a search for the rare decays KL0'e and KL0'ee at the KEK 12-GeV Proton Synchrotron. We found no KL0'e or KL0'ee events and found 54 KL0' events. The upper limits of the KL0'e and KL0'ee branching ratios are B(KL0'e)<4.3×10-10 and B(KL0'ee)<5.6×10-10 at 90% confidence level. The 54 KL0' events correspond to an absolute branching ratio of (8.41.1)×10-9.",

author = "T. Inagaki and M. Kobayashi and T. Sato and T. Shinkawa and F. Suekane and K. Takamatsu and Y. Yoshimura and K. Ishikawa and T. Kishida and Komatsubara, {T. K.} and M. Kuze and F. Sai and J. Toyoura and Yamamoto, {S. S.} and Y. Hemmi",

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AU - Inagaki, T.

AU - Kobayashi, M.

AU - Sato, T.

AU - Shinkawa, T.

AU - Suekane, F.

AU - Takamatsu, K.

AU - Yoshimura, Y.

AU - Ishikawa, K.

AU - Kishida, T.

AU - Komatsubara, T. K.

AU - Kuze, M.

AU - Sai, F.

AU - Toyoura, J.

AU - Yamamoto, S. S.

AU - Hemmi, Y.

PY - 1989/1/1

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AB - We report on the present status of a search for the rare decays KL0'e and KL0'ee at the KEK 12-GeV Proton Synchrotron. We found no KL0'e or KL0'ee events and found 54 KL0' events. The upper limits of the KL0'e and KL0'ee branching ratios are B(KL0'e)<4.3×10-10 and B(KL0'ee)<5.6×10-10 at 90% confidence level. The 54 KL0' events correspond to an absolute branching ratio of (8.41.1)×10-9.

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