Observation of double-hypernuclei and Λ-Λ interaction

H. Takahashi, J. K. Ahn, H. Akikawa, S. Aoki, K. Arai, S. Y. Bahk, K. M. Baik, B. Bassalleck, J. H. Chung, M. S. Chung, D. H. Davis, T. Fukuda, K. Hoshino, A. Ichikawa, M. Ieiri, K. Imai, Y. H. Iwata, Y. S. Iwata, H. Kanda, M. KanekoT. Kawai, M. Kawasaki, C. O. Kim, J. Y. Kim, S. J. Kim, S. H. Kim, Y. Kondo, T. Kouketsu, K. N. Kyaw, Y. L. Lee, J. W.C. McNabb, M. Mitsuhara, Y. Nagase, C. Nagoshi, K. Nakazawa, H. Noumi, S. Ogawa, H. Okabe, M. Okuda, K. Oyama, B. D. Park, H. M. Park, I. G. Park, J. Parker, Y. S. Ra, J. T. Rhee, A. Rusek, H. Shibuya, K. S. Sim, P. K. Saha, D. Seki, M. Sekimoto, J. S. Song, T. Takahashi, F. Takeutchi, H. Tanaka, K. Tanida, J. Tojo, H. Torii, S. Torikai, D. N. Tovee, N. Ushida, T. Wint, K. Yamamoto, N. Yasuda, J. T. Yang, C. J. Yoon, C. S. Yoon, M. Yosoi, T. Yoshida, L. Zhu

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Abstract

A hybrid-emulsion experiment has been carried out at KEK-PS to study S = -2 nuclei. With the analysis of about 35% of total emulsion, we have successfully found three events of sequential weak decay of a double-hypernucleus. The results of these E373 events are summarized together with those of past experiments. The first experimental study of the branching ratios of weak decay modes of double-hypernuclei has been performed.

Original languageEnglish
Pages (from-to)C951-C954
JournalNuclear Physics A
Volume721
DOIs
Publication statusPublished - 2003 Jun 30
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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  • Cite this

    Takahashi, H., Ahn, J. K., Akikawa, H., Aoki, S., Arai, K., Bahk, S. Y., Baik, K. M., Bassalleck, B., Chung, J. H., Chung, M. S., Davis, D. H., Fukuda, T., Hoshino, K., Ichikawa, A., Ieiri, M., Imai, K., Iwata, Y. H., Iwata, Y. S., Kanda, H., ... Zhu, L. (2003). Observation of double-hypernuclei and Λ-Λ interaction. Nuclear Physics A, 721, C951-C954. https://doi.org/10.1016/S0375-9474(03)01249-1