Spectroscopy of medium-heavy Λ hypernuclei via the (π+,K+) reaction

H. Hotchi; T. Nagae; H. Outa; H. Noumi; M. Sekimoto; T. Fukuda; H. Bhang; Y. D. Kim; J. H. Kim; H. Park; K. Tanida; O. Hashimoto; H. Tamura; T. Takahashi; Y. Sato; T. Endo; S. Satoh; J. Nishida; T. Miyoshi; T. Saitoh; T. Kishimoto; A. Sakaguchi; S. Ajimura; Y. Shimizu; T. Mori; S. Minami; M. Sumihama; R. Sawafta; L. Tang

Spectroscopy of medium-heavy Λ hypernuclei via the (π⁺,K⁺) reaction

H. Hotchi, T. Nagae, H. Outa, H. Noumi, M. Sekimoto, T. Fukuda, H. Bhang, Y. D. Kim, J. H. Kim, H. Park, K. Tanida, O. Hashimoto, H. Tamura, T. Takahashi, Y. Sato, T. Endo, S. Satoh, J. Nishida, T. Miyoshi, T. SaitohT. Kishimoto, A. Sakaguchi, S. Ajimura, Y. Shimizu, T. Mori, S. Minami, M. Sumihama, R. Sawafta, L. Tang

SCI - Physics

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

162 Citations (Scopus)

Abstract

Excitation energy spectra of ⁸⁹_ΛY, ⁵¹_ΛV, and ¹²_ΛC have been measured via the (π⁺, K⁺) reaction by using the SKS spectrometer at the K6 beam line in the KEK 12-GeV Proton Synchrotron. In the ⁸⁹_ΛY spectrum, obtained with an energy resolution of 1.65 MeV (FWHM) and in the highest statistics so far, we have succeeded in clearly observing a characteristic fine structure in heavy Λ hypernuclear systems and precisely obtaining a series of Λ single-particle energies in the very wide excitation energy range of more than 20 MeV, for the first time. Also in the ⁵¹_ΛV spectrum, a similar structure to that of ⁸⁹_ΛY was observed. In the ¹²_ΛC spectrum, new core-excited states were clearly resolved thanks to the best energy resolution of 1.45 MeV so far achieved by using the SKS spectrometer.

Original language	English
Article number	044302
Pages (from-to)	443021-4430215
Number of pages	3987195
Journal	Physical Review C - Nuclear Physics
Volume	64
Issue number	4
Publication status	Published - 2001 Oct

ASJC Scopus subject areas

Nuclear and High Energy Physics

Cite this

Hotchi, H., Nagae, T., Outa, H., Noumi, H., Sekimoto, M., Fukuda, T., Bhang, H., Kim, Y. D., Kim, J. H., Park, H., Tanida, K., Hashimoto, O., Tamura, H., Takahashi, T., Sato, Y., Endo, T., Satoh, S., Nishida, J., Miyoshi, T., ... Tang, L. (2001). Spectroscopy of medium-heavy Λ hypernuclei via the (π⁺,K⁺) reaction. Physical Review C - Nuclear Physics, 64(4), 443021-4430215. [044302].

Spectroscopy of medium-heavy Λ hypernuclei via the (π⁺,K⁺) reaction. / Hotchi, H.; Nagae, T.; Outa, H.; Noumi, H.; Sekimoto, M.; Fukuda, T.; Bhang, H.; Kim, Y. D.; Kim, J. H.; Park, H.; Tanida, K.; Hashimoto, O.; Tamura, H.; Takahashi, T.; Sato, Y.; Endo, T.; Satoh, S.; Nishida, J.; Miyoshi, T.; Saitoh, T.; Kishimoto, T.; Sakaguchi, A.; Ajimura, S.; Shimizu, Y.; Mori, T.; Minami, S.; Sumihama, M.; Sawafta, R.; Tang, L.

In: Physical Review C - Nuclear Physics, Vol. 64, No. 4, 044302, 10.2001, p. 443021-4430215.

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

Hotchi, H, Nagae, T, Outa, H, Noumi, H, Sekimoto, M, Fukuda, T, Bhang, H, Kim, YD, Kim, JH, Park, H, Tanida, K, Hashimoto, O, Tamura, H, Takahashi, T, Sato, Y, Endo, T, Satoh, S, Nishida, J, Miyoshi, T, Saitoh, T, Kishimoto, T, Sakaguchi, A, Ajimura, S, Shimizu, Y, Mori, T, Minami, S, Sumihama, M, Sawafta, R & Tang, L 2001, 'Spectroscopy of medium-heavy Λ hypernuclei via the (π⁺,K⁺) reaction', Physical Review C - Nuclear Physics, vol. 64, no. 4, 044302, pp. 443021-4430215.

Hotchi, H. ; Nagae, T. ; Outa, H. ; Noumi, H. ; Sekimoto, M. ; Fukuda, T. ; Bhang, H. ; Kim, Y. D. ; Kim, J. H. ; Park, H. ; Tanida, K. ; Hashimoto, O. ; Tamura, H. ; Takahashi, T. ; Sato, Y. ; Endo, T. ; Satoh, S. ; Nishida, J. ; Miyoshi, T. ; Saitoh, T. ; Kishimoto, T. ; Sakaguchi, A. ; Ajimura, S. ; Shimizu, Y. ; Mori, T. ; Minami, S. ; Sumihama, M. ; Sawafta, R. ; Tang, L. / Spectroscopy of medium-heavy Λ hypernuclei via the (π⁺,K⁺) reaction. In: Physical Review C - Nuclear Physics. 2001 ; Vol. 64, No. 4. pp. 443021-4430215.

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title = "Spectroscopy of medium-heavy Λ hypernuclei via the (π+,K+) reaction",

abstract = "Excitation energy spectra of 89ΛY, 51ΛV, and 12ΛC have been measured via the (π+, K+) reaction by using the SKS spectrometer at the K6 beam line in the KEK 12-GeV Proton Synchrotron. In the 89ΛY spectrum, obtained with an energy resolution of 1.65 MeV (FWHM) and in the highest statistics so far, we have succeeded in clearly observing a characteristic fine structure in heavy Λ hypernuclear systems and precisely obtaining a series of Λ single-particle energies in the very wide excitation energy range of more than 20 MeV, for the first time. Also in the 51ΛV spectrum, a similar structure to that of 89ΛY was observed. In the 12ΛC spectrum, new core-excited states were clearly resolved thanks to the best energy resolution of 1.45 MeV so far achieved by using the SKS spectrometer.",

author = "H. Hotchi and T. Nagae and H. Outa and H. Noumi and M. Sekimoto and T. Fukuda and H. Bhang and Kim, {Y. D.} and Kim, {J. H.} and H. Park and K. Tanida and O. Hashimoto and H. Tamura and T. Takahashi and Y. Sato and T. Endo and S. Satoh and J. Nishida and T. Miyoshi and T. Saitoh and T. Kishimoto and A. Sakaguchi and S. Ajimura and Y. Shimizu and T. Mori and S. Minami and M. Sumihama and R. Sawafta and L. Tang",

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T1 - Spectroscopy of medium-heavy Λ hypernuclei via the (π+,K+) reaction

AU - Hotchi, H.

AU - Nagae, T.

AU - Outa, H.

AU - Noumi, H.

AU - Sekimoto, M.

AU - Fukuda, T.

AU - Bhang, H.

AU - Kim, Y. D.

AU - Kim, J. H.

AU - Park, H.

AU - Tanida, K.

AU - Hashimoto, O.

AU - Tamura, H.

AU - Takahashi, T.

AU - Sato, Y.

AU - Endo, T.

AU - Satoh, S.

AU - Nishida, J.

AU - Miyoshi, T.

AU - Saitoh, T.

AU - Kishimoto, T.

AU - Sakaguchi, A.

AU - Ajimura, S.

AU - Shimizu, Y.

AU - Mori, T.

AU - Minami, S.

AU - Sumihama, M.

AU - Sawafta, R.

AU - Tang, L.

PY - 2001/10

Y1 - 2001/10

N2 - Excitation energy spectra of 89ΛY, 51ΛV, and 12ΛC have been measured via the (π+, K+) reaction by using the SKS spectrometer at the K6 beam line in the KEK 12-GeV Proton Synchrotron. In the 89ΛY spectrum, obtained with an energy resolution of 1.65 MeV (FWHM) and in the highest statistics so far, we have succeeded in clearly observing a characteristic fine structure in heavy Λ hypernuclear systems and precisely obtaining a series of Λ single-particle energies in the very wide excitation energy range of more than 20 MeV, for the first time. Also in the 51ΛV spectrum, a similar structure to that of 89ΛY was observed. In the 12ΛC spectrum, new core-excited states were clearly resolved thanks to the best energy resolution of 1.45 MeV so far achieved by using the SKS spectrometer.

AB - Excitation energy spectra of 89ΛY, 51ΛV, and 12ΛC have been measured via the (π+, K+) reaction by using the SKS spectrometer at the K6 beam line in the KEK 12-GeV Proton Synchrotron. In the 89ΛY spectrum, obtained with an energy resolution of 1.65 MeV (FWHM) and in the highest statistics so far, we have succeeded in clearly observing a characteristic fine structure in heavy Λ hypernuclear systems and precisely obtaining a series of Λ single-particle energies in the very wide excitation energy range of more than 20 MeV, for the first time. Also in the 51ΛV spectrum, a similar structure to that of 89ΛY was observed. In the 12ΛC spectrum, new core-excited states were clearly resolved thanks to the best energy resolution of 1.45 MeV so far achieved by using the SKS spectrometer.

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Spectroscopy of medium-heavy Λ hypernuclei via the (π⁺,K⁺) reaction

Abstract

ASJC Scopus subject areas

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