Butsuri

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

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Volume 70, Issue 12

Displaying 1-29 of 29 articles from this issue

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[title in Japanese]

Article type: Cover
2015 Volume 70 Issue 12 Pages Cover1-
Published: December 05, 2015
Released on J-STAGE: October 05, 2017

DOIhttps://doi.org/10.11316/butsuri.70.12_Cover1

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JPS in the Eyes of a Member of Its Treasury Board

Tetsuo Matsui

Article type: Preface
2015 Volume 70 Issue 12 Pages 897-
Published: December 05, 2015
Released on J-STAGE: October 05, 2017

DOIhttps://doi.org/10.11316/butsuri.70.12_897

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[title in Japanese]

Article type: Index
2015 Volume 70 Issue 12 Pages 898-899
Published: December 05, 2015
Released on J-STAGE: October 05, 2017

DOIhttps://doi.org/10.11316/butsuri.70.12_898

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[title in Japanese]

Article type: Index
2015 Volume 70 Issue 12 Pages 899-
Published: December 05, 2015
Released on J-STAGE: October 05, 2017

DOIhttps://doi.org/10.11316/butsuri.70.12_899

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New Form of Hadron : Exotic Multi-Quark State(Trend)

Makoto Takizawa

Article type: Article
2015 Volume 70 Issue 12 Pages 900-901
Published: December 05, 2015
Released on J-STAGE: October 05, 2017

DOIhttps://doi.org/10.11316/butsuri.70.12_900

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Telescope : Developments of Universe Awareness(<Special Series>To International Year of Light 2015)

Norio Kaifu

Article type: Article
2015 Volume 70 Issue 12 Pages 902-911
Published: December 05, 2015
Released on J-STAGE: October 05, 2017

DOIhttps://doi.org/10.11316/butsuri.70.12_902

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History of telescope is reviewed under the light of evolution of universe awareness by humankind. Starting from enlargement of images to "see and find" wonders of universe since Galileo Galilei, optical telescopes evolved to gigantic modern instruments to "measure and analyze" phenomena in the universe by using a variety of sophisticated attachments. Radio telescope had dramatically extended the observing area from stars to all kinds of matters in universe, and IR, X and γ-ray telescopes provided awareness of dynamically evolving universe. Perspectives on the future of telescopes are also discussed.

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New Facets of Nuclear Forces ―Three-Nucleon Forces and Precise Measurements― (Reviews)

Kimiko Sekiguchi

Article type: Reviews
2015 Volume 70 Issue 12 Pages 912-920
Published: December 05, 2015
Released on J-STAGE: October 05, 2017

DOIhttps://doi.org/10.11316/butsuri.70.12_912

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One of the main interests in nuclear physics is understanding the forces acting among nuclear constituents. In the past decade substantial progress was made in descriptions of various phenomena of nuclei, by explicitly taking into account nucleon-nucleon (NN) forces. The results of comparison to the experimental data for binding energies of nuclei, equation of state of nuclear matter and three-nucleon scattering, strongly indicate the importance of 3NFs acting in systems with more than two nucleons. Nucleon-deuteron (Nd) scattering, for which a rigorous formulation in terms of Faddeev equations exists and exact solutions of these equations for any dynamical input can be obtained, offers a good opportunity to study the dynamical aspects of 3NFs, such as momentum, spin, and/or iso-spin dependences. Since the first indication of 3NF effects in Nd elastic scattering around 100 MeV/nucleon precise measurements of proton-deuteron/neutron-deuteron elastic scattering have been extensively performed at 65-400 MeV/nucleon. Direct comparison between the data and the Faddeev calculations draws the following conclusions, (1) the 3NF is definitely needed in Nd elastic scattering, (2) the spin dependent parts of the 3NF are deficient, (3) the short-range components of the 3NF are probably required for high momentum transfer region.

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Quarks to Neutron Stars using Lattice QCD Simulations (Research)

Takashi Inoue

Article type: Researches
2015 Volume 70 Issue 12 Pages 921-925
Published: December 05, 2015
Released on J-STAGE: October 05, 2017

DOIhttps://doi.org/10.11316/butsuri.70.12_921

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We try to study neutron stars starting from quarks and gluons governed by QCD. For this purpose, first, we extract two-nucleon potentials in lattice QCD numerical simulations, at large quark masses for the moment, with the recent developed HAL QCD method. Then, we apply it to the Brueckner-Hartree-Fock theory and obtain an equation of state of nucleonic matters. By solving the Tolman-Oppenheimer-Volkoff equation with the EoS, we can finally obtain mass and radius of neutron stars. This approach is quite promising because one can include hyperons based on QCD without any fundamental difficulty.

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Organo-Lead Halide Perovskite Solar Cells (Research)

Yoshihiko Kanemitsu, Yasuhiro Yamada

Article type: Researches
2015 Volume 70 Issue 12 Pages 926-931
Published: December 05, 2015
Released on J-STAGE: October 05, 2017

DOIhttps://doi.org/10.11316/butsuri.70.12_926

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Lead-halide perovskite semiconductors CH_3NH_3PbX_3 (X=Cl, Br, and I) have currently come into the limelight because of their promising features for solar cell applications. The maximum efficiency of perovskite-based solar cells has already reached above 20%. Studies on three-dimensional halide perovskite CH_3NH_3PbX_3 started from the early 1970s, however, their optical and electrical properties have not been clarified compared with the associated two- and one-dimensional perovskites. We studied the optical properties and photocarrier recombination dynamics in CH_3NH_3PbI_3 using time-resolved laser spectroscopy and revealed that electron-hole radiative recombination dominates the photocarrier dynamics at room temperature. Our findings demonstrate that the photoexcited electrons and holes behave as free carriers in CH_3NH_3PbI_3, because of its small exciton binding energy. This feature is closely related to the high energy-conversion efficiencies of perovskite solar cells. We discuss future perspectives on perovskite semiconductor physics and perovskite solar cells.

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[title in Japanese]

[in Japanese]

Article type: Article
2015 Volume 70 Issue 12 Pages 932-935
Published: December 05, 2015
Released on J-STAGE: October 05, 2017

DOIhttps://doi.org/10.11316/butsuri.70.12_932

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[title in Japanese]

[in Japanese]

Article type: Article
2015 Volume 70 Issue 12 Pages 936-940
Published: December 05, 2015
Released on J-STAGE: October 05, 2017

DOIhttps://doi.org/10.11316/butsuri.70.12_936

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[title in Japanese]

[in Japanese]

Article type: Article
2015 Volume 70 Issue 12 Pages 941-
Published: December 05, 2015
Released on J-STAGE: October 05, 2017

DOIhttps://doi.org/10.11316/butsuri.70.12_941

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[title in Japanese]

[in Japanese]

Article type: Article
2015 Volume 70 Issue 12 Pages 942-943
Published: December 05, 2015
Released on J-STAGE: October 05, 2017

DOIhttps://doi.org/10.11316/butsuri.70.12_942

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[title in Japanese]

[in Japanese]

Article type: Physics Community News
2015 Volume 70 Issue 12 Pages 944-945
Published: December 05, 2015
Released on J-STAGE: October 05, 2017

DOIhttps://doi.org/10.11316/butsuri.70.12_944

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[title in Japanese]

[in Japanese]

Article type: Book Reviews
2015 Volume 70 Issue 12 Pages 946-
Published: December 05, 2015
Released on J-STAGE: October 05, 2017

DOIhttps://doi.org/10.11316/butsuri.70.12_946_1

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[title in Japanese]

[in Japanese]

Article type: Book Reviews
2015 Volume 70 Issue 12 Pages 946-947
Published: December 05, 2015
Released on J-STAGE: October 05, 2017

DOIhttps://doi.org/10.11316/butsuri.70.12_946_2

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[title in Japanese]

[in Japanese]

Article type: Book Reviews
2015 Volume 70 Issue 12 Pages 947-948
Published: December 05, 2015
Released on J-STAGE: October 05, 2017

DOIhttps://doi.org/10.11316/butsuri.70.12_947

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[title in Japanese]

2015 Volume 70 Issue 12 Pages 949-952
Published: December 05, 2015
Released on J-STAGE: October 05, 2017

DOIhttps://doi.org/10.11316/butsuri.70.12_949

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[title in Japanese]

2015 Volume 70 Issue 12 Pages 953-
Published: December 05, 2015
Released on J-STAGE: October 05, 2017

DOIhttps://doi.org/10.11316/butsuri.70.12_953_1

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[title in Japanese]

[in Japanese]

Article type: Appendix
2015 Volume 70 Issue 12 Pages 953-954
Published: December 05, 2015
Released on J-STAGE: October 05, 2017

DOIhttps://doi.org/10.11316/butsuri.70.12_953_2

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[title in Japanese]

2015 Volume 70 Issue 12 Pages 955-960
Published: December 05, 2015
Released on J-STAGE: October 05, 2017

DOIhttps://doi.org/10.11316/butsuri.70.12_955

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[title in Japanese]

2015 Volume 70 Issue 12 Pages 961-964
Published: December 05, 2015
Released on J-STAGE: October 05, 2017

DOIhttps://doi.org/10.11316/butsuri.70.12_961

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[title in Japanese]

2015 Volume 70 Issue 12 Pages 965-966
Published: December 05, 2015
Released on J-STAGE: October 05, 2017

DOIhttps://doi.org/10.11316/butsuri.70.12_965

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[title in Japanese]

Article type: Appendix
2015 Volume 70 Issue 12 Pages 966-
Published: December 05, 2015
Released on J-STAGE: October 05, 2017

DOIhttps://doi.org/10.11316/butsuri.70.12_966

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[title in Japanese]

Article type: Index
2015 Volume 70 Issue 12 Pages i-vi
Published: December 05, 2015
Released on J-STAGE: October 05, 2017

DOIhttps://doi.org/10.11316/butsuri.70.12_i

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[title in Japanese]

Article type: Index
2015 Volume 70 Issue 12 Pages vii-
Published: December 05, 2015
Released on J-STAGE: October 05, 2017

DOIhttps://doi.org/10.11316/butsuri.70.12_vii

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[title in Japanese]

Article type: Index
2015 Volume 70 Issue 12 Pages viii-xi
Published: December 05, 2015
Released on J-STAGE: October 05, 2017

DOIhttps://doi.org/10.11316/butsuri.70.12_viii

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[title in Japanese]

Article type: Index
2015 Volume 70 Issue 12 Pages xii-xiii
Published: December 05, 2015
Released on J-STAGE: October 05, 2017

DOIhttps://doi.org/10.11316/butsuri.70.12_xii

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[title in Japanese]

Article type: Index
2015 Volume 70 Issue 12 Pages xiv-
Published: December 05, 2015
Released on J-STAGE: October 05, 2017

DOIhttps://doi.org/10.11316/butsuri.70.12_xiv

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