Core-excited states of CΛ12 hypernuclei formed in the (π+, K+) reaction

T. Hasegawa; O. Hashimoto; S. Homma; T. Miyachi; T. Nagae; M. Sekimoto; T. Shibata; H. Sakaguchi; T. Takahashi; K. Aoki; H. Noumi; H. Bhang; M. Youn; Y. Gavrilov; S. Ajimura; T. Kishimoto; A. Ohkusu; K. Maeda; R. Sawafta; R. P. Redwine

doi:10.1103/PhysRevLett.74.224

Core-excited states of CΛ12 hypernuclei formed in the (π+, K+) reaction

T. Hasegawa, O. Hashimoto, S. Homma, T. Miyachi, T. Nagae, M. Sekimoto, T. Shibata, H. Sakaguchi, T. Takahashi, K. Aoki, H. Noumi, H. Bhang, M. Youn, Y. Gavrilov, S. Ajimura, T. Kishimoto, A. Ohkusu, K. Maeda, R. Sawafta, R. P. Redwine

SCI - Physics

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

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Abstract

A spectroscopic study of the CΛ12 hypernucleus by the (π+, K+) reaction has been performed using a new superconducting kaon spectrometer (INS-SKS) at the KEK 12 GeV Proton Synchrotron with an energy resolution of 2 MeV (FWHM). In addition to two prominent peaks which correspond to the s and p orbitals of a Λ hyperon, for the first time two smaller peaks were clearly observed at excitation energies of 2.6 and 6.9 MeV. These two peaks are interpreted as states where the C11 excited core and a Λ hyperon in the s orbit are weakly coupled. The excitation energies and the cross sections of these peaks provide information on the ΛN interaction.

Original language	English
Pages (from-to)	224-227
Number of pages	4
Journal	Physical review letters
Volume	74
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevLett.74.224
Publication status	Published - 1995

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1103/PhysRevLett.74.224

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Hasegawa, T., Hashimoto, O., Homma, S., Miyachi, T., Nagae, T., Sekimoto, M., Shibata, T., Sakaguchi, H., Takahashi, T., Aoki, K., Noumi, H., Bhang, H., Youn, M., Gavrilov, Y., Ajimura, S., Kishimoto, T., Ohkusu, A., Maeda, K., Sawafta, R., & Redwine, R. P. (1995). Core-excited states of CΛ12 hypernuclei formed in the (π+, K+) reaction. Physical review letters, 74(2), 224-227. https://doi.org/10.1103/PhysRevLett.74.224

Hasegawa, T, Hashimoto, O, Homma, S, Miyachi, T, Nagae, T, Sekimoto, M, Shibata, T, Sakaguchi, H, Takahashi, T, Aoki, K, Noumi, H, Bhang, H, Youn, M, Gavrilov, Y, Ajimura, S, Kishimoto, T, Ohkusu, A, Maeda, K, Sawafta, R & Redwine, RP 1995, 'Core-excited states of CΛ12 hypernuclei formed in the (π+, K+) reaction', Physical review letters, vol. 74, no. 2, pp. 224-227. https://doi.org/10.1103/PhysRevLett.74.224

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abstract = "A spectroscopic study of the CΛ12 hypernucleus by the (π+, K+) reaction has been performed using a new superconducting kaon spectrometer (INS-SKS) at the KEK 12 GeV Proton Synchrotron with an energy resolution of 2 MeV (FWHM). In addition to two prominent peaks which correspond to the s and p orbitals of a Λ hyperon, for the first time two smaller peaks were clearly observed at excitation energies of 2.6 and 6.9 MeV. These two peaks are interpreted as states where the C11 excited core and a Λ hyperon in the s orbit are weakly coupled. The excitation energies and the cross sections of these peaks provide information on the ΛN interaction.",

author = "T. Hasegawa and O. Hashimoto and S. Homma and T. Miyachi and T. Nagae and M. Sekimoto and T. Shibata and H. Sakaguchi and T. Takahashi and K. Aoki and H. Noumi and H. Bhang and M. Youn and Y. Gavrilov and S. Ajimura and T. Kishimoto and A. Ohkusu and K. Maeda and R. Sawafta and Redwine, {R. P.}",

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doi = "10.1103/PhysRevLett.74.224",

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volume = "74",

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T1 - Core-excited states of CΛ12 hypernuclei formed in the (π+, K+) reaction

AU - Hasegawa, T.

AU - Hashimoto, O.

AU - Homma, S.

AU - Miyachi, T.

AU - Nagae, T.

AU - Sekimoto, M.

AU - Shibata, T.

AU - Sakaguchi, H.

AU - Takahashi, T.

AU - Aoki, K.

AU - Noumi, H.

AU - Bhang, H.

AU - Youn, M.

AU - Gavrilov, Y.

AU - Ajimura, S.

AU - Kishimoto, T.

AU - Ohkusu, A.

AU - Maeda, K.

AU - Sawafta, R.

AU - Redwine, R. P.

PY - 1995

Y1 - 1995

N2 - A spectroscopic study of the CΛ12 hypernucleus by the (π+, K+) reaction has been performed using a new superconducting kaon spectrometer (INS-SKS) at the KEK 12 GeV Proton Synchrotron with an energy resolution of 2 MeV (FWHM). In addition to two prominent peaks which correspond to the s and p orbitals of a Λ hyperon, for the first time two smaller peaks were clearly observed at excitation energies of 2.6 and 6.9 MeV. These two peaks are interpreted as states where the C11 excited core and a Λ hyperon in the s orbit are weakly coupled. The excitation energies and the cross sections of these peaks provide information on the ΛN interaction.

AB - A spectroscopic study of the CΛ12 hypernucleus by the (π+, K+) reaction has been performed using a new superconducting kaon spectrometer (INS-SKS) at the KEK 12 GeV Proton Synchrotron with an energy resolution of 2 MeV (FWHM). In addition to two prominent peaks which correspond to the s and p orbitals of a Λ hyperon, for the first time two smaller peaks were clearly observed at excitation energies of 2.6 and 6.9 MeV. These two peaks are interpreted as states where the C11 excited core and a Λ hyperon in the s orbit are weakly coupled. The excitation energies and the cross sections of these peaks provide information on the ΛN interaction.

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JO - Physical Review Letters

JF - Physical Review Letters

IS - 2

ER -

Core-excited states of CΛ12 hypernuclei formed in the (π+, K+) reaction

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