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Volume 68, Issue 10
Displaying 1-35 of 35 articles from this issue
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Article type: Cover
2013 Volume 68 Issue 10 Pages Cover1-
Published: October 05, 2013
Released on J-STAGE: October 17, 2019
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Article type: Index
2013 Volume 68 Issue 10 Pages Toc1-
Published: October 05, 2013
Released on J-STAGE: October 17, 2019
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Article type: Index
2013 Volume 68 Issue 10 Pages Toc3-
Published: October 05, 2013
Released on J-STAGE: October 17, 2019
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Article type: Appendix
2013 Volume 68 Issue 10 Pages 649-650
Published: October 05, 2013
Released on J-STAGE: October 17, 2019
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Seiji MiyashitaArticle type: Article
2013 Volume 68 Issue 10 Pages 651-
Published: October 05, 2013
Released on J-STAGE: October 17, 2019
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Sadakazu HainoArticle type: Article
2013 Volume 68 Issue 10 Pages 652-653
Published: October 05, 2013
Released on J-STAGE: October 17, 2019
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Kouichi Hagino, Yoshihiro AritomoArticle type: Article
2013 Volume 68 Issue 10 Pages 654-661
Published: October 05, 2013
Released on J-STAGE: October 17, 2019
JOURNAL FREE ACCESSOn August 12, 2012, the anticipated event for the element 113 (with the atomic number 113 and the mass number 278) was detected in the fusion reaction between ^<70>Zn and ^<209>Bi by the experimental group led by Dr. Kosuke Morita at RIKEN. The potential energy between two colliding nuclei consists of a short range nuclear attraction and the long range Coulomb repulsion, and the potential barrier, which is referred to as the Coulomb barrier, appears due to the strong cancellation between the two interactions. For relatively light systems, such as ^<16>O + ^<209>Bi, fusion takes place once the Coulomb barrier is overcome. In contrast, for massive systems, such as ^<70>Zn + ^<209>Bi used in the experiment by Morita, et al., the quasi-fission process, in which the two nuclei reseparate after the Coulomb barrier is overcome, becomes increasingly dominant, and the fusion cross sections are hindered accordingly. Moreover, even if the fusion is succeeded, the compound nucleus quickly decays by the (ordinary) fission. In this article, we first discuss how it is rare to synthesize a new element by heavy-ion fusion reactions and discuss a significance of the experimental result of Dr. Morita, et al. We also discuss a comparison between the so called hot fusion and cold fusion reactions, a transition of fusion dynamics from light systems to heavy systems, and the role of nuclear structure such as nuclear deformation on fusion of massive systems.View full abstractDownload PDF (1303K) -
Thomas A. Rijken, Yasuo YamamotoArticle type: Article
2013 Volume 68 Issue 10 Pages 662-669
Published: October 05, 2013
Released on J-STAGE: October 17, 2019
JOURNAL FREE ACCESSHyper-nuclear physics activities, relevance, and scope in particle-, nuclear- and astro-physics are reviewed. The topic is the development of the nuclear and its generalization the baryonic force starting from the Yukawa-meory since 1934. It is stated that the development could be achieved by mutual relation between studies of baryon-baryon interactions and nuclear/hypernuclear structures.View full abstractDownload PDF (1049K) -
Yoshiki Tsunesada, Shoichi Ogio, Hiroyuki SagawaArticle type: Article
2013 Volume 68 Issue 10 Pages 670-674
Published: October 05, 2013
Released on J-STAGE: October 17, 2019
JOURNAL FREE ACCESSThe results from the Telescope Array experiment after the first five year observation are reviewed. We measured the energy spectrum of ultra-high energy cosmic rays (UHECRs) by two different types of detectors, the surface detector array (SD) and the fluorescence detectors (FDs). The energy spectrum by TA is fully consistent with the result from the HiRes experiment in the energy scale and the shape. We found a steepening in the energy spectrum at 5.4 x 10^<19> eV, which is also consistent with the claim firstly reported by HiRes, and later by Auger. The analysis of longitudinal development of air showers in the atmosphere shows that the UHECR mass composition is dominated by protons around the steepening. This is a supporting evidence of the Greisen-Zatsepin-Kuzmin cutoff, which may be formed as a result of UHECR energy losses via interaction with the cosmic microwave background photons in the inter-galactic space. However, we found no statistically significant anisotropy in the arrival directions of the current TA data, which is expected if UHECRs from nearby sources are preferably observed in the energy region beyond the steepening. The interpretation of the results and the future prospects are discussed.View full abstractDownload PDF (858K) -
Tsuneya AndoArticle type: Article
2013 Volume 68 Issue 10 Pages 675-678
Published: October 05, 2013
Released on J-STAGE: October 17, 2019
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Norisuke SakaiArticle type: Article
2013 Volume 68 Issue 10 Pages 679-680
Published: October 05, 2013
Released on J-STAGE: October 17, 2019
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2013 Volume 68 Issue 10 Pages 681-
Published: October 05, 2013
Released on J-STAGE: October 17, 2019
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2013 Volume 68 Issue 10 Pages 681-
Published: October 05, 2013
Released on J-STAGE: October 17, 2019
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2013 Volume 68 Issue 10 Pages 682-
Published: October 05, 2013
Released on J-STAGE: October 17, 2019
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2013 Volume 68 Issue 10 Pages 682-
Published: October 05, 2013
Released on J-STAGE: October 17, 2019
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Masaru MatsuokaArticle type: Article
2013 Volume 68 Issue 10 Pages 683-685
Published: October 05, 2013
Released on J-STAGE: October 17, 2019
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Daisuke KonagayaArticle type: Article
2013 Volume 68 Issue 10 Pages 685-687
Published: October 05, 2013
Released on J-STAGE: October 17, 2019
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[in Japanese]Article type: Article
2013 Volume 68 Issue 10 Pages 687-688
Published: October 05, 2013
Released on J-STAGE: October 17, 2019
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[in Japanese]Article type: Article
2013 Volume 68 Issue 10 Pages 688-
Published: October 05, 2013
Released on J-STAGE: October 17, 2019
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[in Japanese]Article type: Article
2013 Volume 68 Issue 10 Pages 689-
Published: October 05, 2013
Released on J-STAGE: October 17, 2019
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[in Japanese]Article type: Article
2013 Volume 68 Issue 10 Pages 689-690
Published: October 05, 2013
Released on J-STAGE: October 17, 2019
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[in Japanese]Article type: Article
2013 Volume 68 Issue 10 Pages 690-691
Published: October 05, 2013
Released on J-STAGE: October 17, 2019
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[in Japanese]Article type: Article
2013 Volume 68 Issue 10 Pages 691-692
Published: October 05, 2013
Released on J-STAGE: October 17, 2019
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[in Japanese]Article type: Article
2013 Volume 68 Issue 10 Pages 692-693
Published: October 05, 2013
Released on J-STAGE: October 17, 2019
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[in Japanese]Article type: Article
2013 Volume 68 Issue 10 Pages 693-
Published: October 05, 2013
Released on J-STAGE: October 17, 2019
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[in Japanese]Article type: Article
2013 Volume 68 Issue 10 Pages 693-
Published: October 05, 2013
Released on J-STAGE: October 17, 2019
JOURNAL FREE ACCESSDownload PDF (230K) -
[in Japanese]Article type: Article
2013 Volume 68 Issue 10 Pages 693-
Published: October 05, 2013
Released on J-STAGE: October 17, 2019
JOURNAL FREE ACCESSDownload PDF (230K) -
Article type: Appendix
2013 Volume 68 Issue 10 Pages 694-698
Published: October 05, 2013
Released on J-STAGE: October 17, 2019
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Article type: Appendix
2013 Volume 68 Issue 10 Pages 698-699
Published: October 05, 2013
Released on J-STAGE: October 17, 2019
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[in Japanese]2013 Volume 68 Issue 10 Pages 699-
Published: October 05, 2013
Released on J-STAGE: October 17, 2019
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Article type: Appendix
2013 Volume 68 Issue 10 Pages 701-704
Published: October 05, 2013
Released on J-STAGE: October 17, 2019
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Article type: Appendix
2013 Volume 68 Issue 10 Pages 705-708
Published: October 05, 2013
Released on J-STAGE: October 17, 2019
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Article type: Appendix
2013 Volume 68 Issue 10 Pages 708-
Published: October 05, 2013
Released on J-STAGE: October 17, 2019
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Article type: Appendix
2013 Volume 68 Issue 10 Pages 709-
Published: October 05, 2013
Released on J-STAGE: October 17, 2019
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Article type: Appendix
2013 Volume 68 Issue 10 Pages 710-
Published: October 05, 2013
Released on J-STAGE: October 17, 2019
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