A measurement of the π0 decay of(Formula presented.)C and(Formula presented.)B hypernucleihypernuclei

A. Sakaguchi; W. Brückner; S. Paul; R. Schüssler; B. Povh; H. Döbbeling; H. Tamura; T. Yamazaki; M. Aoki; R. S. Hayano; T. Ishikawa; M. Iwasaki; T. Motoki; H. Outa; E. Takada; K. H. Tanaka

doi:10.1007/BF02734870

A measurement of the π⁰ decay of(Formula presented.)C and(Formula presented.)B hypernucleihypernuclei

A. Sakaguchi, W. Brückner, S. Paul, R. Schüssler, B. Povh, H. Döbbeling, H. Tamura, T. Yamazaki, M. Aoki, R. S. Hayano, T. Ishikawa, M. Iwasaki, T. Motoki, H. Outa, E. Takada, K. H. Tanaka

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

12 Citations (Scopus)

Abstract

We made a direct measurement of the π⁰ weak decay branching ratio of the(Formula presented.)C hypernucleus for the first time. The branching ratio is estimated to be Γ_π⁰/Γ=0.166±0.055 from the measurement. The branching ratio agrees fairly with a theoretical calculation with a realistic pion distorted wave function, but is inconsistent with a calculation with a free π⁰ wave function. An upper limit of the π⁰ decay branching ratio of the(Formula presented.)B hypernucleus was also estimated to be Γ_π⁰/Γ<0.291 (90% confidence level).

Original language	English
Pages (from-to)	511-519
Number of pages	9
Journal	Il Nuovo Cimento A Series 11
Volume	102
Issue number	2
DOIs	https://doi.org/10.1007/BF02734870
Publication status	Published - 1989 Aug
Externally published	Yes

Keywords

21.80 - Hypernuclei
25.80.Nv - Kaon-induced reactions and scattering

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Nuclear and High Energy Physics
Astronomy and Astrophysics

Access to Document

10.1007/BF02734870

Cite this

Sakaguchi, A., Brückner, W., Paul, S., Schüssler, R., Povh, B., Döbbeling, H., Tamura, H., Yamazaki, T., Aoki, M., Hayano, R. S., Ishikawa, T., Iwasaki, M., Motoki, T., Outa, H., Takada, E., & Tanaka, K. H. (1989). A measurement of the π⁰ decay of(Formula presented.)C and(Formula presented.)B hypernucleihypernuclei. Il Nuovo Cimento A Series 11, 102(2), 511-519. https://doi.org/10.1007/BF02734870

Sakaguchi, A, Brückner, W, Paul, S, Schüssler, R, Povh, B, Döbbeling, H, Tamura, H, Yamazaki, T, Aoki, M, Hayano, RS, Ishikawa, T, Iwasaki, M, Motoki, T, Outa, H, Takada, E & Tanaka, KH 1989, 'A measurement of the π⁰ decay of(Formula presented.)C and(Formula presented.)B hypernucleihypernuclei', Il Nuovo Cimento A Series 11, vol. 102, no. 2, pp. 511-519. https://doi.org/10.1007/BF02734870

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abstract = "We made a direct measurement of the π0 weak decay branching ratio of the(Formula presented.)C hypernucleus for the first time. The branching ratio is estimated to be Γπ0/Γ=0.166±0.055 from the measurement. The branching ratio agrees fairly with a theoretical calculation with a realistic pion distorted wave function, but is inconsistent with a calculation with a free π0 wave function. An upper limit of the π0 decay branching ratio of the(Formula presented.)B hypernucleus was also estimated to be Γπ0/Γ<0.291 (90% confidence level).",

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T1 - A measurement of the π0 decay of(Formula presented.)C and(Formula presented.)B hypernucleihypernuclei

AU - Sakaguchi, A.

AU - Brückner, W.

AU - Paul, S.

AU - Schüssler, R.

AU - Povh, B.

AU - Döbbeling, H.

AU - Tamura, H.

AU - Yamazaki, T.

AU - Aoki, M.

AU - Hayano, R. S.

AU - Ishikawa, T.

AU - Iwasaki, M.

AU - Motoki, T.

AU - Outa, H.

AU - Takada, E.

AU - Tanaka, K. H.

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N2 - We made a direct measurement of the π0 weak decay branching ratio of the(Formula presented.)C hypernucleus for the first time. The branching ratio is estimated to be Γπ0/Γ=0.166±0.055 from the measurement. The branching ratio agrees fairly with a theoretical calculation with a realistic pion distorted wave function, but is inconsistent with a calculation with a free π0 wave function. An upper limit of the π0 decay branching ratio of the(Formula presented.)B hypernucleus was also estimated to be Γπ0/Γ<0.291 (90% confidence level).

AB - We made a direct measurement of the π0 weak decay branching ratio of the(Formula presented.)C hypernucleus for the first time. The branching ratio is estimated to be Γπ0/Γ=0.166±0.055 from the measurement. The branching ratio agrees fairly with a theoretical calculation with a realistic pion distorted wave function, but is inconsistent with a calculation with a free π0 wave function. An upper limit of the π0 decay branching ratio of the(Formula presented.)B hypernucleus was also estimated to be Γπ0/Γ<0.291 (90% confidence level).

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