Spectroscopic study of BΛ10, CΛ12, SiΛ28, YΛ89, LaΛ139, and PbΛ208 by 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, and R. P. Redwine
Phys. Rev. C 53, 1210 – Published 1 March 1996
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Abstract

Hypernuclear mass spectra of Λ10B, Λ12C, Λ28Si, Λ89Y, Λ139La, and Λ208Pb were measured by the (π+,K+) reaction with an energy resolution of 2 MeV (FWHM). The experiment was carried out with a 1.06 GeV/c π+ beam from the KEK 12-GeV PS and with the superconducting kaon spectrometer (SKS). For light hypernuclei, core-excited states were resolved for the first time. For heavy hypernuclei, peak structure reflecting Λ shell structure was observed. © 1996 The American Physical Society.

  • Received 6 July 1995

DOI:https://doi.org/10.1103/PhysRevC.53.1210

©1996 American Physical Society

Authors & Affiliations

T. Hasegawa, O. Hashimoto, S. Homma, T. Miyachi, T. Nagae, M. Sekimoto, and T. Shibata

  • Institute for Nuclear Study, University of Tokyo, Tanashi, Tokyo 188, Japan

H. Sakaguchi and T. Takahashi

  • Department of Physics, Kyoto University, Kitashirakawa, Sakyo-ku, Kyoto 606, Japan

K. Aoki and H. Noumi

  • National Laboratory for High Energy Physics (KEK), Oho, Tsukuba, Ibaraki 305, Japan

H. Bhang and M. Youn

  • Department of Physics, Seoul National University, Seoul 151-742, Korea

Y. Gavrilov

  • Institute for Nuclear Research, Academy of Science, 117312 Moscow, Russia

S. Ajimura, T. Kishimoto, and A. Ohkusu

  • Department of Physics, Osaka University, Toyonaka, Osaka 660, Japan

K. Maeda

  • Department of Physics, Tohoku University, Aoba-ku, Sendai, Miyagi 980-77, Japan

R. Sawafta

  • Physics Department, Brookhaven National Laboratory, Upton, New York 11973

R. P. Redwine

  • Laboratory for Nuclear Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139

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Vol. 53, Iss. 3 — March 1996

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