Polarization of5ΛHe produced by the (π+, K+) reaction

S. Ajimura; M. Ishikawa; K. Ikeda; T. Kishimoto; A. Okusu; N. Shinkai; Y. Tanaka; H. Ejiri; T. Nakano; T. Nagae; H. Noumi; K. Manabe; M. Sekimoto; T. Shibata; O. Hashimoto; K. Maeda; T. Takahashi; T. Hasegawa; H. Bhang; H. Park; Y. Kim; M. Youn; T. Motoba; K. Itonaga

doi:10.1103/PhysRevLett.80.3471

Polarization of⁵_ΛHe produced by the (π⁺, K⁺) reaction

S. Ajimura, M. Ishikawa, K. Ikeda, T. Kishimoto, A. Okusu, N. Shinkai, Y. Tanaka, H. Ejiri, T. Nakano, T. Nagae, H. Noumi, K. Manabe, M. Sekimoto, T. Shibata, O. Hashimoto, K. Maeda, T. Takahashi, T. Hasegawa, H. Bhang, H. ParkY. Kim, M. Youn, T. Motoba, K. Itonaga

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

20 Citations (Scopus)

Abstract

We have measured the polarization of⁵_ΛHe produced by the (π⁺, K⁺) reaction for the first time by observing the asymmetric emission of its weak decay pions. The large asymmetry parameter of the mesonic decay, which is unique to⁵_ΛHe, made the measurement possible. The measurement is consistent with the theoretical prediction by which the mechanism of the hypernuclear polarization was clarified. This technique will open a new field to the spectroscopic study of hypernuclei.

Original language	English
Pages (from-to)	3471-3474
Number of pages	4
Journal	Physical review letters
Volume	80
Issue number	16
DOIs	https://doi.org/10.1103/PhysRevLett.80.3471
Publication status	Published - 1998
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1103/PhysRevLett.80.3471

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Ajimura, S., Ishikawa, M., Ikeda, K., Kishimoto, T., Okusu, A., Shinkai, N., Tanaka, Y., Ejiri, H., Nakano, T., Nagae, T., Noumi, H., Manabe, K., Sekimoto, M., Shibata, T., Hashimoto, O., Maeda, K., Takahashi, T., Hasegawa, T., Bhang, H., ... Itonaga, K. (1998). Polarization of⁵_ΛHe produced by the (π⁺, K⁺) reaction. Physical review letters, 80(16), 3471-3474. https://doi.org/10.1103/PhysRevLett.80.3471

Ajimura, S, Ishikawa, M, Ikeda, K, Kishimoto, T, Okusu, A, Shinkai, N, Tanaka, Y, Ejiri, H, Nakano, T, Nagae, T, Noumi, H, Manabe, K, Sekimoto, M, Shibata, T, Hashimoto, O, Maeda, K, Takahashi, T, Hasegawa, T, Bhang, H, Park, H, Kim, Y, Youn, M, Motoba, T & Itonaga, K 1998, 'Polarization of⁵_ΛHe produced by the (π⁺, K⁺) reaction', Physical review letters, vol. 80, no. 16, pp. 3471-3474. https://doi.org/10.1103/PhysRevLett.80.3471

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abstract = "We have measured the polarization of5ΛHe produced by the (π+, K+) reaction for the first time by observing the asymmetric emission of its weak decay pions. The large asymmetry parameter of the mesonic decay, which is unique to5ΛHe, made the measurement possible. The measurement is consistent with the theoretical prediction by which the mechanism of the hypernuclear polarization was clarified. This technique will open a new field to the spectroscopic study of hypernuclei.",

author = "S. Ajimura and M. Ishikawa and K. Ikeda and T. Kishimoto and A. Okusu and N. Shinkai and Y. Tanaka and H. Ejiri and T. Nakano and T. Nagae and H. Noumi and K. Manabe and M. Sekimoto and T. Shibata and O. Hashimoto and K. Maeda and T. Takahashi and T. Hasegawa and H. Bhang and H. Park and Y. Kim and M. Youn and T. Motoba and K. Itonaga",

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doi = "10.1103/PhysRevLett.80.3471",

language = "English",

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T1 - Polarization of5ΛHe produced by the (π+, K+) reaction

AU - Ajimura, S.

AU - Ishikawa, M.

AU - Ikeda, K.

AU - Kishimoto, T.

AU - Okusu, A.

AU - Shinkai, N.

AU - Tanaka, Y.

AU - Ejiri, H.

AU - Nakano, T.

AU - Nagae, T.

AU - Noumi, H.

AU - Manabe, K.

AU - Sekimoto, M.

AU - Shibata, T.

AU - Hashimoto, O.

AU - Maeda, K.

AU - Takahashi, T.

AU - Hasegawa, T.

AU - Bhang, H.

AU - Park, H.

AU - Kim, Y.

AU - Youn, M.

AU - Motoba, T.

AU - Itonaga, K.

PY - 1998

Y1 - 1998

N2 - We have measured the polarization of5ΛHe produced by the (π+, K+) reaction for the first time by observing the asymmetric emission of its weak decay pions. The large asymmetry parameter of the mesonic decay, which is unique to5ΛHe, made the measurement possible. The measurement is consistent with the theoretical prediction by which the mechanism of the hypernuclear polarization was clarified. This technique will open a new field to the spectroscopic study of hypernuclei.

AB - We have measured the polarization of5ΛHe produced by the (π+, K+) reaction for the first time by observing the asymmetric emission of its weak decay pions. The large asymmetry parameter of the mesonic decay, which is unique to5ΛHe, made the measurement possible. The measurement is consistent with the theoretical prediction by which the mechanism of the hypernuclear polarization was clarified. This technique will open a new field to the spectroscopic study of hypernuclei.

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DO - 10.1103/PhysRevLett.80.3471

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JO - Physical Review Letters

JF - Physical Review Letters

IS - 16

ER -

Polarization of⁵_ΛHe produced by the (π⁺, K⁺) reaction

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