The contribution of the three-body process in the nonmesonic weak decay of the 12ΛC hypernucleus

H. Bhang, S. Ajimura, K. Aoki, A. Banu, T. Fukuda, O. Hashimoto, J. I. Hwang, S. Kameoka, B. H. Kang, E. Kim, J. H. Kim, T. Maruta, Y. Miura, Y. Miyake, T. Nagae, M. Nakamura, S. N. Nakamura, H. Noumi, S. Okada, Y. OkayasuH. Outa, H. Park, P. K. Saha, Y. Sato, M. Sekimoto, T. Takahashi, H. Tamura, K. Tanida, A. Toyoda, K. Tshoo, K. Tsukada, T. Watanabe, H. J. Yim

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1 Citation (Scopus)

Abstract

The serious inconsistency problem between the values of experimental and theoretical Γnp ratio of the nonmesonic weak decay of Λ hypernuclei has been resolved recently. We have shown that the reason behind the problem was the quenching of the nucleon yields which in turn was due to the contribution of the three-body process. We have measured that the branching ratio of the three-body process in nonmesonic weak decay, 0.29±0.13, is so large that the absolute values of Γn and Γp must be determined taking account of the contribution of the 3-body process. In this paper, the recent studies toward the finding of the 3-body process via the exclusive coincidence experiments are presented.

Original languageEnglish
Article number05013
JournalEPJ Web of Conferences
Volume3
DOIs
Publication statusPublished - 2010 Apr 12
Event19th International IUPAP Conference on Few-Body Problems in Physics, Few-Body 2009 - Bonn, Germany
Duration: 2009 Aug 312009 Sep 5

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Bhang, H., Ajimura, S., Aoki, K., Banu, A., Fukuda, T., Hashimoto, O., Hwang, J. I., Kameoka, S., Kang, B. H., Kim, E., Kim, J. H., Maruta, T., Miura, Y., Miyake, Y., Nagae, T., Nakamura, M., Nakamura, S. N., Noumi, H., Okada, S., ... Yim, H. J. (2010). The contribution of the three-body process in the nonmesonic weak decay of the 12ΛC hypernucleus. EPJ Web of Conferences, 3, [05013]. https://doi.org/10.1051/epjconf/20100305013