Observation of double-hypernuclei and Λ-Λ interaction

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...

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Bibliographic Details
Published in:Nuclear physics. A 2003-06, Vol.721, p.C951-C954
Main Authors: 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., Kaneko, M., Kawai, T., Kawasaki, M., Kim, C.O., Kim, J.Y., Kim, S.H., Kondo, Y., Kouketsu, T., Nagoshi, C., Nakazawa, K., Noumi, H., Ogawa, S., Okabe, H., Okuda, M., Oyama, K., Park, B.D., Park, H.M., Park, I.G., Parker, J., Ra, Y.S., Rhee, J.T., Rusek, A., Shibuya, H., Sim, K.S., Saha, P.K., Seki, D., Sekimoto, M., Song, J.S., Takahashi, T., Takeutchi, F., Tanaka, H., Tanida, K., Tojo, J., Torii, H., Torikai, S., Tovee, D.N., Ushida, N., Wint, T., Yamamoto, K., Yasuda, N., Yang, J.T., Yoon, C.J., Yoon, C.S., Yosoi, M., Yoshida, T., Zhu, L.
Format: Article
Language:English
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Summary: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.
ISSN:0375-9474
DOI:10.1016/S0375-9474(03)01249-1