Zobrazeno 1 - 10
of 370
pro vyhledávání: '"Otsuka Takaharu"'
Neutron-rich Nd and Sm isotopes are known to exhibit shape phase transition as a function of neutron number. Among them, $^{150}$Nd and $^{150}$Sm are important not only because they are transitional nuclei, but also the parent and daughter nuclei of
Externí odkaz:
http://arxiv.org/abs/2304.11780
Autor:
Leoni Silvia, Fornal Bogdan, Marginean Nicolae, Sferrazza Michele, Tsunod Yusuke, Otsuka Takaharu
Publikováno v:
EPJ Web of Conferences, Vol 223, p 01032 (2019)
In a two–neutron transfer experiment, performed in Bucharest in July 2016 at sub–Coulomb barrier energy,a photon decay hindered – solely – by a nuclear shape change was identified in the 66Ni nucleus. Such a rare process, at spin zero, was cl
Externí odkaz:
https://doaj.org/article/6710e72234cb404398b3f37e65d78b38
Publikováno v:
EPJ Web of Conferences, Vol 165, p 01048 (2017)
Electron-capture and β-decay rates in stellar environments are evaluated with the use of new shell-model Hamiltonians for sd-shell and pf-shell nuclei as well as for nuclei belonging to the island of inversion. Important role of the nuclear weak rat
Externí odkaz:
https://doaj.org/article/0d82a66d3ea94bfd810d38e9b83efa9d
Autor:
Otsuka, Takaharu
Some emerging concepts of nuclear structure are overviewed. (1) Background: the many-body quantum structure of atomic nucleus, a complex system comprising protons and neutrons (called nucleons collectively), has been studied largely based on the idea
Externí odkaz:
http://arxiv.org/abs/2201.05443
The ground-state properties of neutron-rich exotic Na and Mg isotopes with even numbers of neutrons, N, are studied up to driplines. The shell-model calculations with an ab initio effective nucleon-nucleon interaction reported in [Tsunoda, Otsuka, Ta
Externí odkaz:
http://arxiv.org/abs/2201.03190
Autor:
Shimizu Noritaka, Utsuno Yutaka, Futamura Yasunori, Sakurai Tetsuya, Mizusaki Takahiro, Otsuka Takaharu
Publikováno v:
EPJ Web of Conferences, Vol 122, p 02003 (2016)
An estimation method of the nuclear level density stochastically based on nuclear shell-model calculations is introduced. In order to count the number of the eigen-values of the shell-model Hamiltonian matrix, we perform the contour integral of the m
Externí odkaz:
https://doaj.org/article/c6dc1f2506a9481b9c48b57bf9d5a701
Autor:
Yuan, Cenxi, Liu, Menglan, Shimizu, Noritaka, Podolyak, Zs., Suzuki, Toshio, Otsuka, Takaharu, Liu, Zhong
We aim to study the properties of nuclei in the south region of $^{208}$Pb systematically, including the binding and excitation energies and electromagnetic properties, in order to predict unknown properties of these nuclei, such as isomerism, utiliz
Externí odkaz:
http://arxiv.org/abs/2111.04537
Autor:
Utsuno Yusuke, Otsuka Takaharu, Shimizu Noritaka, Honma Michio, Mizusaki Takahiro, Tsunoda Yusuke, Abe Takashi
Publikováno v:
EPJ Web of Conferences, Vol 66, p 02106 (2014)
We report on our recent advancement in the shell model and its applications to exotic nuclei, focusing on the shell evolution and large-scale calculations with the Monte Carlo shell model (MCSM). First, we test the validity of the monopole-based univ
Externí odkaz:
https://doaj.org/article/6abdafd914c841dbbd94a57fd1efb138
Autor:
Otsuka Takaharu
Publikováno v:
EPJ Web of Conferences, Vol 66, p 10008 (2014)
I give an overview on the Fukushima Nuclear Power Plant Accident and a report on voluntary activities of Japanese nuclear physicists in this terrible event, including their major outcome.
Externí odkaz:
https://doaj.org/article/7c5a76e9f17d42138b7b82435d9da512
Publikováno v:
EPJ Web of Conferences, Vol 66, p 02105 (2014)
We study Cr and Ni isotopes by using Monte Carlo shell model (MCSM) calculations in a pfg9d5 model space. In the MCSM, a wave function is represented as a linear combination of angular-momentum- and parity-projected deformed Slater determinants(MCSM
Externí odkaz:
https://doaj.org/article/c91396e713604c6cadb282bce3d4d70d