Center for Nuclear Study

The University of Tokyo



29 Jul, 2020

CNS Seminar 2020/07/29 Dr. N. Kitamura

Place: online

Date: Jul. 29 (Wed) 13:30 - 14:30 * The talk will be given in English. *

Speaker: Dr. Noritaka Kitamura (CNS)

Title : In-beam spectroscopy of 30Mg: structural evolution approaching the island of inversion

Abstract : In the island of inversion, ground states of neutron-rich nuclei around 32Mg exhibit strong admixtures of fp-shell intruder contributions. The nucleus 30Mg is located at the border of the island of inversion, and its nuclear structure serves as a cornerstone to track the structural evolution as one approaches the heart of the island, namely 32Mg. In the present work, the structure of 30Mg was studied by detailed in-beam gamma-ray spectroscopy, primarily focusing on firm spin-parity assignments for excited states. The experiment was performed at the National Superconducting Cyclotron Laboratory at Michigan State University. States in 30Mg were populated via nucleon removal reactions. Gamma rays were detected using the state-of-the-art gamma-ray tracking array GRETINA in coincidence with the residual 30Mg, allowing for the construction of an updated level scheme. The experimental results were confronted with large-scale shell-model calculations, providing further insight into the transition into the island of inversion. In this talk, the results and their interpretations will be presented. A new in-beam measurement of 32Mg will also be discussed briefly.

contact: Ken Yako


28 May, 2020

PR: A Paper from SHARAQ

A paper from SHARAQ facility, titled “How Different is the Core of 25F from 24Og.s.?” was published in Physical Review Letter. This paper is based on the dissertation work by Dr. Ryan Tang (Tang, Tsz Leung), a former student at CNS.
Link to the press release article at RIKEN


3 Feb, 2020


CNS + RIBF NP seminar by Prof. Muhsin Harakeh at RIBF Hall from 15:00.


29 Jan, 2020


Jan 29-30 External review of CNS at Hongo and Wako.



24 Dec, 2019


Dear colleagues,

The Center for Nuclear Study at the University of Tokyo is calling for applications for postdoctoral research fellows in the field of experimental and theoretical nuclear physics. Details can be found below. We would appreciate it, if you could distribute the advertisement to potential candidates. Sincerely,

Susumu Shimoura

Director of Center for Nuclear Study, University of Tokyo

Opening of Postdoctoral Researchers at Center for Nuclear Study, University of Tokyo

CNS has several devices in RIBF in RIKEN Nishina Center and pursues the experimental nuclear physics such as nuclear astrophysics and nuclear structure/reaction studies with radioactive isotope beams. We also have branches of fundamental physics with radioactive heavy elements, high-energy nuclear physics, nuclear theory and development of ion sources.

JOB TITLE: postdoctoral researcher, a few positions available

FIELD: Experimental and theoretical nuclear physics.

The successful candidates will work on experimental nuclear physics with radioactive isotopes mainly by using the devices of CNS (CRIB, SHARAQ, Ge array (GRAPE), OEDO, Active Target, etc), on fundamental physics with radioactive heavy elements, on high energy nuclear collisions at ALICE at LHC, or on nuclear structure theory.

ELIGIBILITY: They must hold a recent Ph.D degree in

experimental/theoretical nuclear physics, or a related field by April 1, 2020.


One-year fixed-term employment contract, renewable up to March 31, 2023, according to research budget, research activity, and research achievements. The start of the employment is April 1, 2020 (negotiable). Health and unemployment insurance plans are available.

SALARY: ~ 300,000 yen/month (gross). Additionally commuting expense will be covered.


(1) CV with UTokyo format (2) List of Publication/Talks/etc. (3) Research summary and future plan at CNS (4) Names and contact details of reference The above materials have to be uploaded to the file server with the PDF file. We will inform you on the URL of the file server and also the password. Please contact with email before you submit your application materials.

DEADLINE OF APPLICATION: January 22th (Wed.) 2020

After initial screening with the application form, interviews will be arranged in the end of January. Interviews will take place at Wako campus. They consist of a presentation of your research achievements and plans followed by an interview. For applicants from abroad, the interview will be conducted via Skype or TV conference system.


19 Dec, 2019


[Closed] Position of Project Associate Professor, and Project Researcher (or assistant professor)


16 Dec, 2019


Dec16-18: The 20th Program Advisory Committee (PAC) Meeting for Nuclear-Physics Experiments at RI Beam Factory


1 Dec, 2019


December issue of JPS Membership Journal has article on research on new magic nature of nucleon number 34. The experiment was carried out at SHARAQ facility at CNS.