Search for Λ6H hypernucleus by the 6Li(π-,K+) reaction at pπ-=1.2 GeV/c

H. Sugimura, M. Agnello, J. K. Ahn, S. Ajimura, Y. Akazawa, N. Amano, K. Aoki, H. C. Bhang, N. Chiga, M. Endo, P. Evtoukhovitch, A. Feliciello, H. Fujioka, T. Fukuda, S. Hasegawa, S. Hayakawa, R. Honda, K. Hosomi, S. H. Hwang, Y. IchikawaY. Igarashi, K. Imai, N. Ishibashi, R. Iwasaki, C. W. Joo, R. Kiuchi, J. K. Lee, J. Y. Lee, K. Matsuda, Y. Matsumoto, K. Matsuoka, K. Miwa, Y. Mizoi, M. Moritsu, T. Nagae, S. Nagamiya, M. Nakagawa, M. Naruki, H. Noumi, R. Ota, B. J. Roy, P. K. Saha, A. Sakaguchi, H. Sako, C. Samanta, V. Samoilov, Y. Sasaki, S. Sato, M. Sekimoto, Y. Shimizu, T. Shiozaki, K. Shirotori, T. Soyama, T. Takahashi, T. N. Takahashi, H. Tamura, K. Tanabe, T. Tanaka, K. Tanida, A. O. Tokiyasu, Z. Tsamalaidze, Mifuyu Ukai, T. O. Yamamoto, Y. Yamamoto, S. B. Yang, K. Yoshida

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30 Citations (Scopus)


We have carried out an experiment to search for a neutron-rich hypernucleus, Λ6H, by the 6Li(π-,K+) reaction at pπ-=1.2 GeV/c. The obtained missing-mass spectrum with an estimated energy resolution of 3.2 MeV (FWHM) showed no peak structure corresponding to the Λ6H hypernucleus neither below nor above the Λ4H+2n particle decay threshold. An upper limit of the production cross section for the bound Λ6H hypernucleus was estimated to be 1.2nb/sr at 90% confidence level.

Original languageEnglish
Pages (from-to)39-44
Number of pages6
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Publication statusPublished - 2014 Feb 5


  • Missing-mass spectroscopy
  • Neutron-rich Λ-hypernuclei

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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