Final lecture by Prof. Yabana 矢花教授最終講義

2025年2月6日 | 新着情報

The final lecture by Prof. Yabana will be given on March 13, 2025. The lecture will be given in Japanese.

Date: Thursday, March 13, 2025, 15:00 pm
Place: Workshop Room (1F), Center for Computational Sciences
No registration necessary

15:00 Opening address
   Prof. Taisuke Boku (Director, CCS)
   Prof. Akira Ozawa (Head of Department of Physics)
Final Lecture
   Prof. Kazuhiro Yabana, “From nuclear physics, Nano, and laser science”

17:00 Party (After the final lecture)
Fee: about 500-1000 JPY, cash only
* If you intend to attend the party, please register yourself in advance at this form.
* Contact: final.lecture@nucl.ph.tsukuba.ac.jp

日時: 2025年3月13日(木) 15:00
・場所: 計算科学研究センター・ワークショップ室
・参加申し込み不要

15:00 挨拶・祝辞
　朴 泰祐 教授（計算科学研究センター長）
　小沢 顕 教授（数理物質系物理学域長・物理学学位プログラムリーダー）
最終講義
　矢花一浩 教授 「原子核理論からナノ、そしてレーザー科学へ」
17:00 懇親会（最終講義終了後）
参加費：500ー1000円程度（予定）、当日現金支払
＊準備のため、懇親会に参加予の方は、こちらから事前登録して頂きますようお願いいたします。
＊ご不明な点などありましたら、下記世話人担当までご連絡下さい。
中務孝 (final.lecture@nucl.ph.tsukuba.ac.jp)

Prof. Shimizu: 2024 Best faculty member 清水さんベストファカルティメンバーに

2025年1月20日 | 新着情報

Prof. Shimizu has been selected as a 2024 Best Faculty Member. Congratulations!

清水さんが2024年度のベスト・ファカルティ・メンバーに選ばれました。おめでとうございます。

福井徳朗氏集中講義、Lecture by Tokuro Fukui 2025.2.26-28

2024年12月12日 | 新着情報

A series of lectures will be delivered by Dr Fukui (Kyuhsu Univ.) as follows:
“Hands-on learning of the basics of nuclear force”
Lecturer: Fukui, Tokuro (Kyushu Univ.)
Time/Dates: Feb. 26 (Wed) 10:30-17:30, Feb. 27 (Thu) 10:30-17:30, Feb. 28 (Fri) 10:30-17:30
Place: Meeting Room A, Center for Computational Sciences, University of Tsukuba
This lecture is given in Japanese.

題目： ハンズオンで学ぶ核力の基礎
講師： 福井徳朗 氏 （九州大学基幹教育院・助教）
2月26日（水） 10：30 ～ 17：30
2月27日（木） 10：30 ～ 17：30
2月28日（金） 10：30 ～ 17：30
場 所： 計算科学研究センター会議室A
概要：核力はフェムトスケールの量子系である原子核の存在形態やダイナミクスを微視的に理解する鍵である。本講義では、核力の基礎を数値計算を通じてハンズオン形式で学ぶ。数値計算にはPythonを使用するが、Pythonの予備知識を必要としない内容とするつもりである。また、核力が核子多体系の性質をどのように支配しているのかという点についても言及する(こちらはハンズオンではない)。

ハンズオン実習に参加するためノートPC等を持参することが望ましい。

佐藤さん第１９回凝縮系科学賞授賞 Sato san got the 19th Condensed-Matter Science Prize

2024年11月28日 | 新着情報

佐藤さんが第１９回凝縮系科学賞(理論部門)を受賞しました。

Dr. Sato has received the 19th Condensed-Matter Science Prize.

 

ハイライト論文に選定 A paper selected as Editors’ Suggestion

2024年11月15日 | 新着情報

A paper by N. Hinohara and collaborators has been published in Physical Review C of American Physical Society, and selected as an Editors’ Suggestion. The paper analyzes the charge radii by decomposing the contributions into orbital occupations and radial wave functions.

荷電半径を軌道ごとの寄与と動径波動関数に分解して分析した論文（著者：日野原・その他）が、アメリカ物理学会のPhysical Review Cから出版され、Editors’ Suggestionに選ばれました。

 

 

Seminar (セミナー)2024.11.22 Nakada, Hitoshi (Chiba University)

2024年10月29日 | 新着情報

The following seminar will be given by Dr Nakada, Hitoshi in Chiba University on Friday, November 22nd, 2024.

Lecturer: Hitoshi Nakada (Chiba University)
Place: Workshop Room, Center for Computational Sciences
Date/Time:: November 22, Friday, 15:40 pm –
Title:: Deformability of neutron-deficient Sn nuclei and related topics studied with semi-realistic interaction
Abstract:: As experimental data in unstable nuclei have been accumulated, it has been recognized that magic numbers are more fragile than believed previously. Whereas the Sn nuclei have been considered typical spherical nuclei, the E2 transitions in neutron-deficient Sn nuclei are hard to describe within the conventional picture. The deformability of the neutron-deficient Sn nuclei will be argued, based on self-consistent calculations with a semi-realistic interaction, The relevance of the pseudo-spin symmetry and the roles of the tensor force in it will also be argued.

Rising Researchers Seminar 2024.11.12 Kumar, Anil (University of Tsukuba)

2024年10月25日 | 新着情報

Dr Anil Kumar will give the following talk at Rising Researchers Seminar online on November 12, 2024. Contact INT, University of Washington (intmail@uw.edu) for the zoom link.

Title: Large-scale shell model study of β- -decay properties of N = 126, 125 nuclei along the r-process path

Abstract: The rapid neutron capture process (r-process) is the most important mechanism for the synthesis of about half of the elements heavier than iron. It occurs in an environment with relatively high temperatures and high neutron densities. The abundances of the elements created by the r-process strongly depend on several nuclear inputs like masses, neutron capture rates, β-decay rates, and β-delayed neutron emission probabilities at the waiting point nuclei. Among them, the β-decay process plays a crucial role in the r-process. We have investigated various nuclear β-decay properties of N = 126,125 isotones with proton numbers Z = 52 − 79 within the framework of the nuclear shell model. This comprehensive analysis considered both Gamow-Teller (GT) and first-forbidden (FF) transitions to evaluate β-decay rates. We have found that including FF transitions in addition to GT transitions is essential, as they significantly impact the total β-decay half-lives near Z = 82. Additionally, we systematically analyzed the GT strength distributions as a function of proton number. We have observed that the GT strengths at low excitation energies are rather strong on the proton deficient side due to the increasing number of proton holes in the proton 0h_{11/2} orbit, which accelerates GT decay. This investigation aims to provide detailed information on β-decay properties around A ≈ 195 to understand the distribution of the third r-process abundance peak.

Ruike san received Student Presentation Award of the JPS: 類家さんが日本物理学会学生優秀発表賞受賞を受賞

2024年10月24日 | 新着情報

Ms. Ruike has received the Student Presentation Award of the Physical Society of Japan (79th Annual meeting in 2024).

類家さんが2024年9月に開催された日本物理学会第79回年次大会での発表で日本物理学会学生優秀発表賞を受賞しました。

 

From the Atomic Nucleus to the Cosmos (Anil Kumar)

2024年10月23日 | 新着情報

An introduction article of Anil Kumar is published in JICFus website.

Anil Kumarさんの紹介記事が計算基礎科学連携拠点(JICFus)のページに掲載されました。

From the Atomic Nucleus to the CosmosPost-doctoral researcher from India is using the supercomputer Fugaku to help decode the universe

 

 

 

 

 

Seminar (セミナー)2024.10.24 Pierre Arthuis (IJC lab)

2024年10月18日 | 新着情報

The following two seminars will be held on October 24, 2024, at Meeting Room B in Center for Computational Sciences, University of Tsukuba, starting from 16:00 pm.

Speaker: Michal Repisky
Affiliation: Laboratoire des Deux Infinis Irène Joliot-Curie, CNRS, France
Title: Neutron-rich nuclei and neutron skins from chiral low-resolution interactions
Abstract: The quest for an ab initio description of atomic nuclei has benefited recently from a lot of progress in the development of chiral interactions, allowing for predictions to span the nuclear chart up to 208Pb. Still, an accurate description of all nuclear structure properties on the basis of one single interaction remains out of reach to this day. In this talk, we will introduce two low-resolution chiral interactions recently developed for the description of bulk properties of nuclei [1], from ground-state energies to density distributions. In particular, we will discuss how they shade a new light on the neutron skin, that connects finite nuclei to neutron stars and the description of infinite matter.

[1] P. Arthuis, K. Hebeler and A. Schwenk, arXiv:2401.06675 (2024)