Top-tier Nuclear Astrophysics Working Group Workshop

22 Dec 2025, 09:00 → 23 Dec 2025, 18:00 Asia/Seoul

The first workshop of the Top-tier nuclear atrophysics working group will be held by zoom, Dec. 22-23, 2025

Group01.PNG

Group02.PNG

Monday, 22 December

09:20 → 09:30 Opening

09:30 → 10:30 Beam Production

09:30 Current status and prospects of RI beam production at BigRIPS

Speakers: Shin'ichiro Michimasa (Center for Nuclear Study, The University of Tokyo), Shinichiro Michimasa

09:50 Exploring the origin of heavy-elements through nuclear spectroscopy at KISS

Speakers: Yoshikazu HIRAYAMA (WNSC, IPNS, KEK), Yoshikazu Hirayama

10:10 Nuclear astrophysics projects at CRIB

Speakers: Hidetoshi Yamaguchi, Hidetoshi Yamaguchi (Center for Nuclear Study, the University of Tokyo)

10:30 → 10:40 Break

10:40 → 11:00 Beam Production

10:40 TOPTIER Project - RAON Beam Commissioning and Operation

Speakers: Taeksu Shin, Taeksu Shin

11:00 → 11:30 Detector Development

11:00 Detector Update (MR-TOF 1&2 etc.)

Speaker: Junyoung Moon

11:05 Detector Update (Decay)

Speaker: Vi Ho Phong

11:10 IDATEN (Current status of gamma-ray detectors and related electronics in CENS)

Speaker: Byul Moon

11:15 Detector Update (STARK)

Speaker: Dahee Kim

Detector update (STARK).pptx

11:20 Development of active target TPC at CENS

Speaker: Soomi Cha

SMCha_flash.pdf

11:30 → 13:00 Lunch

13:00 → 14:20 Nuclear Reaction

13:00 Impact of 70Kr masses on rp-process

Speakers: Akira Dohi, Akira Dohi (RIKEN)

13:20 Direct measurement of (a,p) cross sections for the ap-process

Speaker: Soomi Cha

SMCha-TTNucastro2025_upload.pdf

13:40 The study of the 34Ar beam production for the direct measurement of 34Ar(a,p)37K

Speakers: Aram Kim, Aram Kim, Aram Kim (Korea University)

14:00 Fast sensitivity studies for X-ray bursts using deep learning

Speakers: Sohyun Kim, Sohyun Kim (Sungkyunkwan University)

2025.Top-tier.upload.pdf

14:20 → 14:30 Group Photo & Break

14:30 → 16:10 Nuclear Reaction

14:30 Towards understanding the neutron star EOS: Heavy ion collision experiment by using RI beam

Speaker: TadaAki Isobe

14:50 Non-gamma Surrogate method using OEDO

Speakers: Nobu Imai, Nobu Imai (Center for Nuclear Study, Univ. of Tokyo)

15:10 Study of r-process neutron capture via (d,p) surrogate reactions of neutron-rich Sn isotopes

Speakers: Sunghan Bae, Sunghan Bae (IRIS, IBS), Dr Sunghan Bae (Center for Nuclear Study, the University of Tokyo)

15:30 Development of isomer beams at RAON for nuclear astrophysics

Speakers: Hiroshi Watanabe, Hiroshi Watanabe (Center for Exotic Nuclear Studies)

15:50 Constraints on the nucleosynthesis of light r-process elements from newly measured beta-delayed neutron emitters in the mid-shell region between 78Ni and 132Sn

Speaker: Vi Ho Phong

16:10 → 16:30 Break

16:30 → 17:30 Discussion & Closing

Tuesday, 23 December

09:30 → 10:10 Theory

09:30 Sensitivity Study of the Light Mass Nuclear Reactions in the r-process

Speaker: Kyungil Kim

09:50 Systematic Investigations of Scandium, Titanium, and Vanadium in Galactic Chemical Evolution

Speaker: Soon Chul Choi

10:10 → 10:20 Break

10:20 → 11:40 Mass and Decay spectroscopy

10:20 Extrapolation of nuclear masses using physics-based neural network

Speaker: Chanhee Kim

10:40 TOF-Mass Measurements in Nuclear Astrophysics: Chasing Fast Ions

Speaker: Honey Arora

11:00 Precise mass measurements with CRISMASSF11/SLOWRI for Nuclear Astrophysics

Speaker: Hironobu Ishiyama

11:40 → 13:00 Lunch

13:00 → 14:20 Mass and Decay spectroscopy

13:00 C2URIE: New Decay Spectroscopy Studies at RIKEN

Speaker: Yung Hee Kim

13:20 Current Status and Future Plans

Speaker: Shunji Nishimura

13:40 HiPPIE project at ISOL: high precision and high purity ion transport beam line for nuclear-decay study

Speaker: Junyoung Moon

14:00 Decay measurements of neutron-rich nuclei across N = 126 at RIBF

Speaker: Yeung Tik Tsun (Marco)

14:20 → 16:00 Discussion & Closing