Top-tier Nuclear Astrophysics Working Group Workshop

Dec 22, 2025, 9:00 AM → Dec 23, 2025, 6:00 PM 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

Mon, December 22

9:20 AM → 9:30 AM Opening

9:30 AM → 10:30 AM Beam Production

9:30 AM Current status and prospects of RI beam production at BigRIPS

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

9:50 AM Exploring the origin of heavy-elements through nuclear spectroscopy at KISS

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

10:10 AM Nuclear astrophysics projects at CRIB

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

10:30 AM → 10:40 AM Break

10:40 AM → 11:00 AM Beam Production

10:40 AM TOPTIER Project - RAON Beam Commissioning and Operation

Speakers: Taeksu Shin, Taeksu Shin

11:00 AM → 11:30 AM Detector Development

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

Speaker: Junyoung Moon

11:05 AM Detector Update (Decay)

Speaker: Vi Ho Phong

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

Speaker: Byul Moon

11:15 AM Detector Update (STARK)

Speaker: Dahee Kim

Detector update (STARK).pptx

11:20 AM Development of active target TPC at CENS

Speaker: Soomi Cha

SMCha_flash.pdf

11:30 AM → 1:00 PM Lunch

1:00 PM → 2:20 PM Nuclear Reaction

1:00 PM Impact of 70Kr masses on rp-process

Speakers: Akira Dohi, Akira Dohi (RIKEN)

1:20 PM Direct measurement of (a,p) cross sections for the ap-process

Speaker: Soomi Cha

SMCha-TTNucastro2025_upload.pdf

1:40 PM 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)

2:00 PM Fast sensitivity studies for X-ray bursts using deep learning

Speakers: Sohyun Kim, Sohyun Kim (Sungkyunkwan University)

2025.Top-tier.upload.pdf

2:20 PM → 2:30 PM Group Photo & Break

2:30 PM → 4:10 PM Nuclear Reaction

2:30 PM Towards understanding the neutron star EOS: Heavy ion collision experiment by using RI beam

Speaker: TadaAki Isobe

2:50 PM Non-gamma Surrogate method using OEDO

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

3:10 PM 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)

3:30 PM Development of isomer beams at RAON for nuclear astrophysics

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

3:50 PM 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

4:10 PM → 4:30 PM Break

4:30 PM → 5:30 PM Discussion & Closing

Tue, December 23

9:30 AM → 10:10 AM Theory

9:30 AM Sensitivity Study of the Light Mass Nuclear Reactions in the r-process

Speaker: Kyungil Kim

9:50 AM Systematic Investigations of Scandium, Titanium, and Vanadium in Galactic Chemical Evolution

Speaker: Soon Chul Choi

10:10 AM → 10:20 AM Break

10:20 AM → 11:40 AM Mass and Decay spectroscopy

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

Speaker: Chanhee Kim

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

Speaker: Honey Arora

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

Speaker: Hironobu Ishiyama

11:40 AM → 1:00 PM Lunch

1:00 PM → 2:20 PM Mass and Decay spectroscopy

1:00 PM C2URIE: New Decay Spectroscopy Studies at RIKEN

Speaker: Yung Hee Kim

1:20 PM Current Status and Future Plans

Speaker: Shunji Nishimura

1:40 PM HiPPIE project at ISOL: high precision and high purity ion transport beam line for nuclear-decay study

Speaker: Junyoung Moon

2:00 PM Decay measurements of neutron-rich nuclei across N = 126 at RIBF

Speaker: Yeung Tik Tsun (Marco)

2:20 PM → 4:00 PM Discussion & Closing