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, Shuhei Hayakawa, Ryotaro 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, M. Ukai, T. O. Yamamoto, Y. Yamamoto, S. B. Yang, K. Yoshida

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34 Citations (Scopus)

Abstract

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
Volume729
DOIs
Publication statusPublished - 2014 Feb 5

Keywords

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

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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