Butsuri

Online ISSN : 2423-8872
Print ISSN : 0029-0181
ISSN-L : 0029-0181

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Volume 69, Issue 2

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[title in Japanese]

Article type: Cover
2014 Volume 69 Issue 2 Pages Cover1-
Published: February 05, 2014
Released on J-STAGE: August 22, 2019

DOIhttps://doi.org/10.11316/butsuri.69.2_Cover1

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Support of the Activities of JPS Branches

Toshio Hyodo

Article type: Article
2014 Volume 69 Issue 2 Pages 69-
Published: February 05, 2014
Released on J-STAGE: August 22, 2019

DOIhttps://doi.org/10.11316/butsuri.69.2_69

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[title in Japanese]

Article type: Index
2014 Volume 69 Issue 2 Pages Toc1-
Published: February 05, 2014
Released on J-STAGE: August 22, 2019

DOIhttps://doi.org/10.11316/butsuri.69.2_Toc1

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What is the AdS/CFT Correspondence?(Trend)

Tadashi Takayanagi

Article type: Article
2014 Volume 69 Issue 2 Pages 72-73
Published: February 05, 2014
Released on J-STAGE: August 22, 2019

DOIhttps://doi.org/10.11316/butsuri.69.2_72

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Baryon Resonances and Meson Production Reactions

Hiroyuki Kamano, Satoshi Nakamura, Akihiko Matsuyama, Toru Sato

Article type: Article
2014 Volume 69 Issue 2 Pages 74-82
Published: February 05, 2014
Released on J-STAGE: August 22, 2019

DOIhttps://doi.org/10.11316/butsuri.69.2_74

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Recent precise and systematic data of the photon and electron induced reactions opened an opportunity of new structure studies of the baryon excited states. Extraction of resonance parameters of the light-quark baryon resonances from a systematic analysis of the meson production reactions are reported. Importance of the reaction dynamics on the properties of the excited baryon states is emphasized and possible future developments of the resonance analysis are discussed.

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Observation of a Higgs Boson with a Mass of 126 GeV at the LHC

Junichi Tanaka

Article type: Article
2014 Volume 69 Issue 2 Pages 83-92
Published: February 05, 2014
Released on J-STAGE: August 22, 2019

DOIhttps://doi.org/10.11316/butsuri.69.2_83

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We, the ATLAS and CMS collaborations, announced the observation of a new particle at a mass of 126 GeV in the search for the Standard Model Higgs boson at the LHC on the 4^<th> July in 2012. After that, by checking couplings, spin and party of this new particle with the full dataset taken in 2012 we reported that the observed particle was a Higgs boson. The mass of the Higgs boson is measured to be m_H=125.5±0.2 (stat.) ^<+0.5>_<-0.6> (syst.) GeV and 125.7±0.3 (stat.) ±0.3 (syst.) GeV by ATLAS and CMS, respectively. The signal strength parameter μ is also given to be 1.33 ^<+0.21>_<-0.18> (for m_H=125.5 GeV) and 0.80±0.14 (for m_H=125.7 GeV), respectively, which is consistent with the Standard Model Higgs boson hypothesis μ=1. Studies of spin and parity quantum numbers shows compatibilities with the Standard Model 0^+ for the Higgs boson, whereas all alternative hypotheses studied, namely some specific 0^-, 1^±, 2^+ models, are excluded at CL above 97.8%. Further data is necessary to investigate the properties of the observed Higgs boson in order to see whether the Standard Model is still valid or the physics beyond the Standard Model can be found in a TeV energy scale.

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Yaku-Cedar Tells Cosmic Outbursts in Ancient Times : Anomalies of Cosmic Ray Intensity in AD 774-775 and AD 993-994(Research)

Fusa Miyake, Kimiaki Masuda

Article type: Article
2014 Volume 69 Issue 2 Pages 93-97
Published: February 05, 2014
Released on J-STAGE: August 22, 2019

DOIhttps://doi.org/10.11316/butsuri.69.2_93

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Measurements of cosmogenic nuclides, which are radioisotopes produced by cosmic rays in the atmosphere, provide important information regarding extraterrestrial high-energy events. We present ^<14>C measurements in annual rings of Japanese cedar trees with 1- and 2-year resolutions, and a finding of two sudden increases of ^<14>C content by significant amount from AD 774 to 775 and AD 993 to 994. The short-term increases of radioactive nuclide production were also found in tree rings of Europe and Antarctic ice core. This strongly indicates that the anomalies were not due to local terrestrial events, but triggered by cosmic outbursts that affected the whole planet. Several conjectures have been made upon the origin of the events, e.g. nearby supernovae (〜200pc), Galactic short gamma-ray bursts, and violent solar mass ejections like SPEs (solar proton events) or super flares. We investigated energetics and the frequencies of occurrence of the phenomena, and demonstrate that SPE is likely to be the origin of the two ^<14>C increase events. Astrophysical significances and impact to modern human society are also discussed.

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Anomalous Diffusion of Cell Membrane : Toward an Understanding of the Physical Properties(Research)

Takuma Akimoto

Article type: Article
2014 Volume 69 Issue 2 Pages 98-101
Published: February 05, 2014
Released on J-STAGE: August 22, 2019

DOIhttps://doi.org/10.11316/butsuri.69.2_98

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Anomalous diffusion, where the mean square displacement (MSD) does not grow linearly with time, has been observed in a wide range of phenomena. Here, we introduce three different physical mechanisms for subdiffusion and a method to clarify the physical nature in subdiffusion. Applying the method to a lipid bilayer in molecular dynamics simulation, we find that a lipid bilayer shows transient subdiffusion originated from viscoelasticity, and time-averaged MSD shows a non-Gaussian fluctuation due to a power-law trapping of a lipid molecule.

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[title in Japanese]

[in Japanese], [in Japanese]

Article type: Article
2014 Volume 69 Issue 2 Pages 102-105
Published: February 05, 2014
Released on J-STAGE: August 22, 2019

DOIhttps://doi.org/10.11316/butsuri.69.2_102

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[title in Japanese]

[in Japanese], [in Japanese]

Article type: Article
2014 Volume 69 Issue 2 Pages 106-107
Published: February 05, 2014
Released on J-STAGE: August 22, 2019

DOIhttps://doi.org/10.11316/butsuri.69.2_106

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[title in Japanese]

[in Japanese]

2014 Volume 69 Issue 2 Pages 108-115
Published: 2014
Released on J-STAGE: August 22, 2019

DOIhttps://doi.org/10.11316/butsuri.69.2_108

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[title in Japanese]

[in Japanese]

Article type: Article
2014 Volume 69 Issue 2 Pages 116-
Published: February 05, 2014
Released on J-STAGE: August 22, 2019

DOIhttps://doi.org/10.11316/butsuri.69.2_116

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[title in Japanese]

[in Japanese]

Article type: Article
2014 Volume 69 Issue 2 Pages 117-
Published: February 05, 2014
Released on J-STAGE: August 22, 2019

DOIhttps://doi.org/10.11316/butsuri.69.2_117

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[title in Japanese]

[in Japanese]

Article type: Article
2014 Volume 69 Issue 2 Pages 118-
Published: February 05, 2014
Released on J-STAGE: August 22, 2019

DOIhttps://doi.org/10.11316/butsuri.69.2_118_1

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[title in Japanese]

[in Japanese]

Article type: Article
2014 Volume 69 Issue 2 Pages 118-119
Published: February 05, 2014
Released on J-STAGE: August 22, 2019

DOIhttps://doi.org/10.11316/butsuri.69.2_118_2

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[title in Japanese]

Article type: Appendix
2014 Volume 69 Issue 2 Pages 120-121
Published: February 05, 2014
Released on J-STAGE: August 22, 2019

DOIhttps://doi.org/10.11316/butsuri.69.2_120

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[title in Japanese]

Article type: Appendix
2014 Volume 69 Issue 2 Pages 121-
Published: February 05, 2014
Released on J-STAGE: August 22, 2019

DOIhttps://doi.org/10.11316/butsuri.69.2_121

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[title in Japanese]

[in Japanese]

2014 Volume 69 Issue 2 Pages 122-
Published: February 05, 2014
Released on J-STAGE: August 22, 2019

DOIhttps://doi.org/10.11316/butsuri.69.2_122_1

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[title in Japanese]

2014 Volume 69 Issue 2 Pages 123-
Published: February 05, 2014
Released on J-STAGE: August 22, 2019

DOIhttps://doi.org/10.11316/butsuri.69.2_123

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[in Japanese]

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[title in Japanese]

Article type: Appendix
2014 Volume 69 Issue 2 Pages 125-126
Published: February 05, 2014
Released on J-STAGE: August 22, 2019

DOIhttps://doi.org/10.11316/butsuri.69.2_125

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