144 research outputs found
beta-DECAY HALF-LIVES AROUND Ni-78 AND Sn-132 IN A SELF-CONSISTENT APPROACH
No full textbeta-decay half-lives around Ni-78 and Sn-132 are studied with proton-neutron Quasiparticle Random Phase Approximation on the basis of Skyrme-Hartree-Fock (SHF) method. We take into account tensor force correlation in calculating the ground and excited states and find it improves the half-life of Sn-132. However, the Q value is still underestimated. We also discuss that half-lives do not strongly depend on type of particle-particle interaction in isospin T = 0 channel.http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000280050200070&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701Physics, NuclearPhysics, Particles & FieldsPhysics, MathematicalSCI(E)CPCI-S(ISTP)
Calculation of Beta Decay Half-Lives and Delayed Neutron Branching Ratio of Fission Fragments with Skyrme-QRPA
No full textNuclear β-decay and delayed neutron (DN) emission is important for the r-process nucleosynthesis after the freeze-out, and stable and safe operation of nuclear reactors. Even though radioactive beam facilities have enabled us to measure β-decay and branching ratio of neutron-rich nuclei apart from the stability line in the nuclear chart, there are still a lot of nuclei which one cannot investigate experimentally. In particular, information on DN is rather scarce than that of T1/2. To predict T1/2 and the branching ratios of DN for next JENDL decay data, we have developed a method which comprises the quasiparticle-random-phase-approximation (QRPA) and the Hauser-Feshbach statistical model (HFSM). In this work, we calculate fission fragments with T1/2 ≤ 50 sec. We obtain the rms deviation from experimental half-life of 3:71. Although the result is still worse than GT2 which has been adopted in JENDL decay data, DN spectra are newly calculated. We also discuss further subjects to be done in future for improving the present approach and making next generation of JENDL decay data
Toward next JENDL Fission Yield Data and Decay Data
No full textJENDL group has developed evaluated fission yield and decay data. They are now planned to be upgraded in order to embody new experimental data and theoretical developments obtained after the last release. In this paper, we briefly describe a plan and present activity toward next JENDL fission yield and decay data
An Introduction of Takashi Nagai's Kagayaku Minato [A Bright Port] from the Original Manuscript (Part 2)
No full textFollowing the previous paper, this article gives a partial introduction and a comment to Dr. Paul Takashi Nagai's unpublished work titled Kagayaku Minato. Though this work lacks its former part, it still has the original meanings and values, showing the living and social conditions of the people of the Urakami Catholic Church in those days. The author also points out some parallels in the contents to Nagai's other works.departmental bulletin pape
PENERAPAN KAWAII BUNKA PADA FIGUR VTUBER MINATO AQUA DALAM BUDAYA POPULER JEPANG
No full textJepang merupakan negara yang sukses dalam mengembangkan ilmu pengetahuan
dan teknologinya. Hal tersebut yang kemudian mendorong lahirnya budaya baru
dari kemajuan teknologi itu sendiri. Jepang juga merupakan negara yang memiliki
berbagai macam budaya salah satunya adalah budaya modernya. Budaya modern
Jepang secara umum dikenal sebagai “Japanese Pop Culture” yang kemudian
melahirkan budaya kawaii atau kawaii bunka. Kawaii bunka merupakan budaya
estetika Jepang yang lahir seiring berkembangnya budaya populer di Jepang.
Kawaii bunka dapat ditemukan pada produk budaya populer seperti anime, manga,
pop music, fashion dan karakter di Jepang.
Dalam budaya populer Jepang masyarakat global dapat merasakan berbagai
fenomena terbaru. Salah satunya fenomena Virtual YouTuber atau VTuber.
Kemudian pada makalah ini penerapan kawaii bunka pada fenomena VTuber akan
dibahas. Pada makalah ini dengan menggunakan metode deskriptif, penulis
mendeskripsikan kebenaran bahwa fenomena VTuber merupakan bagian dari
kawaii bunka. Kemudian penulis melakukan studi kasus terhadap salah satu VTuber
terpopuler dari Jepang yaitu Minato Aqua. Hal tersebut ditujukan untuk
menjabarkan contoh penerapan unsur kawaii bunka pada figur VTuber.
Ditemukan bahwa VTuber merupakan bagian dari kawaii bunka. Hal ini
dikarenakan VTuber sendiri diciptakan mengusung ide dan konsep dari fenomena
sebelumnya yang juga merupakan bagian dari kawaii bunka. VTuber juga
diciptakan dengan estetika yang berkaitan dengan kawaii bunka. Unsur kawaii
bunka pada sosok figur VTuber Minato Aqua dapat ditemukan dalam aspek fisik
meliputi penampilan dan aspek non fisik meliputi suara, ekspresi wajah, dan
kepribadian.
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Japan is a country that has a variety of cultures, one of
which is its modern culture known as "Japanese Pop Culture" which then gave birth to kawaii culture or kawaii bunka. Kawaii bunka is a Japanese aesthetic culture that was born with the development of popular culture in Japan. Kawaii bunka can be found in popular culture products such as anime, manga, pop music, fashion and characters in Japan. In Japanese popular culture, the global community can experience the latest phenomena. One of them is the VTuber phenomenon. In this study, the application of kawaii bunkato the VTuber phenomenon will be discussed. Using a descriptive method, the author describes the truth that the VTuber phenomenon is part of kawaii bunka. Then the author conducted a case study of one of the most popular VTuber from Japan, Minato Aqua. It is
intended to describe examples of the application of kawaii bunkaelements in VTuber figures. This study was conducted as a form of contribution to the development of cultural science, especially Japanese popular culture. It was found that VTuber is a part of kawaii bunka. The kawaii bunka element in the figure of VTuber Minato Aqua can be found in physical aspects including appearance and non-physical aspects including voice, facial expressions, and personality
Transitions To Door-way States And Nuclear Responses Against 2-body External Fields
No full textNuclear microscopic structural models that treat two-body effective interactions self-consistently becomes available, one of which is second-random-phase-approximation (SRPA). SRPA can be used to study evolutions from 1 particle-1 hole (1p1h) to 2 particle-2 hole (2p2h) states from different points of view from reaction models. We studied nuclear excitations created by 1-body and 2-body external fields and discussed transitions between the 1p1h and 2p2h states obtained by the SRPA approach
Estimation of Production Yield of<sup>99</sup>Mo for Medical Use using Neutrons from<sup>nat</sup>C(<i>d</i>,<i>n</i>) at<i>E</i><sub>d</sub>=40 MeV
No full textSpin–isospin properties of
No full textFor odd–odd nuclei, a three-body model assuming two valence particles and an inert core can provide insight into pairing correlations in the ground state and spin–isospin excitations. However, since residual core–nucleon interactions can have a significant impact, the inclusion of core excitations in the model is essential for a detailed understanding of both the ground state and spin–isospin properties. To qualitatively understand the effect of core excitation on the ground state and spin–isospin excitations of odd–odd nuclei, we solve the three-body core–nucleon–nucleon problem including core vibrational states described by the random-phase approximation. We pay a particular attention to the magnetic dipole and Gamow–Teller transitions between and states of nuclei and discuss it in terms of the SU(4) multiplet. We also discuss the effect of coupling to the core vibration on low energy spectra of even–odd nuclei, the spatial distribution, core contributions to the ground state, and possible uncertainties in the present framework
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