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Prog. Theor. Phys. Vol. 85 No. 5 (1991) pp. 951-956

[ Full Text PDF : FREE ACCESS (394K) ]

Letters

Evidence of Weak Decay of Heavy Double Hypernuclei

S. Aoki,1) S. Y. Bahk,2) K. S. Chung,3) S. H. Chung,3) H. Funahashi,4) C. H. Hahn,5) T. Hara,6) S. Hirata,4) K. Hoshino,1) M. Ieiri,7) T. Iijima,4) K. Imai,4) T. Ishigami,8) Y. Itow,4) M. Kazuno,8) K. Kikuchi,9) C. O. Kim,10) D. C. Kim,3) J. Y. Kim,11) M. Kobayashi,8) K. Kodama,12) Y. Maeda,13) A. Masaike,4) A. Masuoka,12) Y. Matsuda,6) C. Nagoshi,14) M. Nakamura,1) S. Nakanishi,1) T. Nakano,4) K. Nakazawa,15) K. Niwa,1) H. Oda,12) H. Okabe,16) S. Ono,8) R. Ozaki,15) I. G. Park,3) Y. Sato,9) H. Shibuya,8) H. M. Shimizu,4) J. S. Song,3) M. Sugimoto,13) H. Tajima,1) R. Takashima,17) F. Takeutchi,18) K. H. Tanaka,7) M. Teranaka,19) I. Tezuka,9) H. Togawa,4) N. Ushida,12) S. Watanabe,8) T. Watanabe,19) J. Yokota16) and C. S. Yoon3)

1)Department of Physics, Nagoya University, Nagoya 464-01
2)Wonkwang University, Iri 570-749
3)Gyeongsang National University, Jinju 660-300
4)Department of Physics, Kyoto University, Kyoto 606
5)Changwon National College, Changwon 641-240
6)College of Liberal Arts, Kobe University, Kobe 657
7)KEK, National Laboratory for High Energy Physics, Tsukuba 305
8)Department of Physics, Toho University, Funabashi 274
9)Faculty of Education, Utsunomiya University, Utsunomiya 350
10)Korea University, Seoul 136-701
11)Chonnan National University, Kwangju 500-757
12)Aichi University of Education, Kariya 448
13)Faculty of Education, Yokohama National University, Yokohama 240
14)Institute for Nuclear Study, University of Tokyo, Tanashi 188
15)Faculty of Education, Gifu University, Gifu 501-11
16)Science Education Institute of Osaka Prefecture, Osaka 558
17)Kyoto University of Education, Kyoto 612
18)Kyoto Sangyo University, Kyoto 603
19)Department of Physics, Osaka City University, Osaka 558

(Received February 1, 1991)

Abstract:

We have studied 80 events of candidates for Ξ--capture star at rest in nuclear emulsion, where Ξ- hyperons are produced in (K-, K+) reactions identified by a K+ spectrometer. The weak decay of heavy double hypernuclei is confirmed, studying the distribution of visible energy-release and the probability of emission of two fast protons, in comparison with those for signle hypernuclei.


URL : http://ptp.ipap.jp/link?PTP/85/951/
DOI : 10.1143/PTP.85.951

[ Full Text PDF : FREE ACCESS (394K) ] Citation:

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Citing Article(s) :

  1. Progress of Theoretical Physics Vol. 85 No. 6 (1991) pp. 1287-1298 :
    Direct Observation of Sequential Weak Decay of a Double Hypernucleus
    S. Aoki, S. Y. Bahk, K. S. Chung, S. H. Chung, H. Funahashi, C. H. Hahn, T. Hara, S. Hirata, K. Hoshino, M. Ieiri, T. Iijima, K. Imai, T. Ishigami, Y. Itow, M. Kazuno, K. Kikuchi, C. O. Kim, D. C. Kim, J. Y. Kim, M. Kobayashi, K. Kodama, Y. Maeda, A. Masaike, A. Masuoka, Y. Matsuda, C. Nagoshi, M. Nakamura, S. Nakanishi, T. Nakano, K. Nakazawa, K. Niwa, H. Oda, H. Okabe, S. Ono, R. Ozaki, I. G. Park, Y. Sato, H. Shibuya, H. M. Shimizu, J. S. Song, M. Sugimoto, H. Tajima, R. Takashima, F. Takeutchi, K. H. Tanaka, M. Teranaka, I. Tezuka, H. Togawa, N. Ushida, S. Watanabe, T. Watanabe, J. Yokota and C. S. Yoon
  2. Progress of Theoretical Physics Vol. 87 No. 4 (1992) pp. 957-967 :
    Formation and Fragmentation of Double-Λ Compound Nucleus
    Mitsuo Sano, Masamichi Wakai and Yasuo Yamamoto
  3. Progress of Theoretical Physics Vol. 88 No. 6 (1992) pp. 1163-1172 :
    Formation of Double-Λ Hypernucleus from Quasi-Free Ξ- Absorption
    Yasuo Yamamoto, Masamichi Wakai, Tomokazu Fukuda and Mitsuo Sano
  4. Progress of Theoretical Physics Vol. 89 No. 2 (1993) pp. 493-500 :
    Production of Two Single-Λ Hypernuclei by Ξ- Capture
    S. Aoki, S.Y. Bahk, K.S. Chung, S.H. Chung, H. Funahashi, C.H. Hahn, T. Hara, S. Hirata, K. Hoshino, M. Ieiri, T. Iijima, K. Imai, Y. Itow, T. Jin-ya, M. Kazuno, K. Kikuchi, C.O. Kim, D.C. Kim, J.Y. Kim, K. Kodama, Y. Maeda, A. Masaike, A. Masuoka, Y. Matsuda, C. Nagoshi, M. Nakamura, S. Nakanishi, T. Nakano, K. Nakazawa, K. Niwa, H. Oda, H. Okabe, S. Ono, R. Ozaki, I.G. Park, M.S. Park, Y. Sato, H. Shibuya, H.M. Shimizu, J.S. Song, M. Sugimoto, M. Tairadate, H. Tajima, R. Takashima, F. Takeutchi, K.H. Tanaka, M. Teranaka, I. Tezuka, H. Togawa, N. Ushida, T. Watanabe, N. Yasuda, J. Yokota and C.S. Yoon
  5. Progress of Theoretical Physics Supplement No.117 (1994) pp. 265-279 :
    Formation and Fragmentation of Double-Λ Compound Nucleus
    Yasuo Yamamoto, Mitsuo Sano and Masamichi Wakai
  6. Progress of Theoretical Physics Supplement No.117 (1994) pp. 281-306 :
    Formation and Transition of Strangeness = -2 Nuclear Systems
    Yasuo Yamamoto, Toshio Motoba, Tomokazu Fukuda, Miho Takahashi and Kiyomi Ikeda
  7. Progress of Theoretical Physics Supplement No.117 (1994) pp. 307-324 :
    Widths of Ξ Hypernuclear States
    D. J. Millener, C. B. Dover and A. Gal
  8. Progress of Theoretical Physics Supplement No.117 (1994) pp. 445-460 :
    Hypernuclei and Deep Hole States
    Taiichi Yamada and Kiyomi Ikeda
  9. Progress of Theoretical Physics Supplement No.117 (1994) pp. 515-528 :
    A Pathway for Research beyond the Pion Factories
    R. E. Chrien
  10. Progress of Theoretical Physics Supplement No. 185 (2010) pp. 335-343 :
    Experimental Study of Double-Λ Hypernuclei with Nuclear Emulsion
    Kazuma Nakazawa and Hitoshi Takahashi

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