Non-mesonic weak decays of Λ5He and Λ 12C hypernuclei using the (π+, K+) reactions

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

研究成果: Conference contribution

抄録

We have measured for the first time yields of both neutron-proton and neutron-neutron pairs emitted from the non-mesonic weak decay of the Λ5He and Λ12C hypernuclei, produced via the (π+,K+) reaction. From the yields of both the back-to-back np-pair events and nn-pair events, we have directly determined the ratio of the neutron- and proton-induced decay widths, Γn(Λn → nn)Γp(Λp → np). Meanwhile, we have also determined the quenching of the observed numbers of single nucleons and coincident nucleon pairs compared with theoretical calculations. Our results suggest that contributions from the two-nucleon-induced three-body process ΛNN → NNN are significant.

本文言語English
ホスト出版物のタイトルNEW FACET OF THREE NUCLEON FORCE - 50 YEARS OF FUJITA MIYAZAWA THREE NUCLEON FORCE (FM50) - Proceedings of the International Symposium
ページ135-139
ページ数5
DOI
出版ステータスPublished - 2008
イベントInternational Symposium on New Facets of the Three Nucleon Force - 50 Years of the Fujita-Miyazawa Three Nucleon Force, FM50 - Tokyo, Japan
継続期間: 2007 10 292007 10 31

出版物シリーズ

名前AIP Conference Proceedings
1011
ISSN(印刷版)0094-243X
ISSN(電子版)1551-7616

Other

OtherInternational Symposium on New Facets of the Three Nucleon Force - 50 Years of the Fujita-Miyazawa Three Nucleon Force, FM50
CountryJapan
CityTokyo
Period07/10/2907/10/31

ASJC Scopus subject areas

  • Physics and Astronomy(all)

フィンガープリント 「Non-mesonic weak decays of Λ<sup>5</sup>He and Λ <sup>12</sup>C hypernuclei using the (π<sup>+</sup>, K<sup>+</sup>) reactions」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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