Conveners
Session
- Chair: Daisuke Suzuki
Session
- Chair: Hidetoshi Yamaguchi
Session
- Chair: Sunghoon (Tony) Ahn
Session
- Chair: Tatsuya Furuno
Session
- Chair: Soomi Cha
Session
- Chair: Fumitaka Endo
Session
- Chair: Daniel Bazin
Session
- Chair: Jie Chen
Session
- Chair: Naoyuki Itagaki
Session
- Chair: Yasuro Funaki
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Daniel Bazin (Michigan State University)08/06/2026, 10:10
This contribution will review some of the results obtained with the AT-TPC, as well as recent ongoing developments in the analysis methodology. Furthermore, future prospects for improving the scientific reach of this active target detector will be discussed.
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Betty Tsang08/06/2026, 10:40
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Yasuro Funaki (Kanto Gakuin University)08/06/2026, 11:10
Funaki's talk
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Tatsuya Furuno (University of Fukui)08/06/2026, 13:00
In FY2025, the world’s largest active target, the AT-TPC developed at FRIB, was installed at the radioactive-ion beam line (EN course) of the Research Center for Nuclear Physics (RCNP), Osaka University. In this campaign, six experiments were carried out. Five of these experiments involved radioactive-ion beams, in which reactions of secondary beams at 20–30 MeV/u ($^{11}$Be, $^{12}$Be,...
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Curtis Hunt (TRIUMF)08/06/2026, 13:30
Heavy ion reactions can be used to provide constraints on the density dependence of the Equation of State (EoS) of dense nuclear matter, helping constrain the EoS of neutron stars. The SAMURAI Pion-Reconstructing and Ion-Tracker (SπRIT) TPC is a device for measuring the pion yields of heavy ion reactions using the SAMURAI magnet at RIKEN for providing these constraints. In 2024 an experiment...
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Teruyuki Saito (Niigata Univ.)08/06/2026, 14:00
Neutron capture plays a crucial role in nuclear reactors and nucleosynthesis.
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In neutron-rich nuclei near the drip line, the low level density suppresses compound
processes, and direct neutron capture (DC) is expected to contribute significantly to
r-process nucleosynthesis.
A quantitative description of DC requires detailed information on low-lying states
(spectroscopic factors) and... -
Zhichao ZHANG (Institute of Modern Physics, Chinese Academy of of Sciences)08/06/2026, 14:50
Over the past few years, a new active-target detector, MATE (Multi-purpose Active-target Time projection chamber for nuclear Experiments), has been developed at IMP-CAS. The primary goal is to investigate exotic phenomena, such as the shell evolution in unstable nuclei. In this presentation, I will introduce the current status and performance of MATE, together with several related experiments....
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Yudai Ichikawa (Tohoku University)08/06/2026, 15:20
We developed the GEM-based Time Projection Chamber, HypTPC, for the hadron experiment at J-PARC. The HypTPC has a unique design that allows for the installation of the experimental target inside the field volume, thereby achieving large acceptance. Consequently, we need to inject the beam into the TPC active area, and the HypTPC should have a high rate capability.
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To achieve this, we adopted... -
Miguel Lozano-González (IGFAE - USC)08/06/2026, 16:20
ACTAR TPC is part of a new generation of active-target detectors specifically designed to meet the requirements of nuclear-structure investigations with radioactive beams in inverse kinematics. Commissioned in 2018 [1], the system has since been used in several experiments [2,3]. This talk will present results from two recent experiments at the GANIL and TRIUMF facilities, aimed at studying...
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Haoyu GE (Peking University, China)08/06/2026, 16:50
The evolution of shell structure in unstable nuclei is a hot topic in modern nuclear physics. In neutron-rich nuclei, inversions in ordering of single-particle orbitals have been observed, which can lead to the disappearance of conventional magic numbers. Among the N=7 isotones, the relative ordering of the neutron s- and p-orbitals in $^{10}$Li has been the subject of long-standing debate....
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Kiseki Nakamura (Tohoku University)09/06/2026, 09:30
We are developing a high‑pressure xenon gas time projection chamber (TPC) to search for neutrinoless double beta decay (0νββ). Observing 0νββ would reveal a key unresolved property of neutrinos—whether they are Majorana particles. Because 0νββ is an extremely rare and monoenergetic process, the detector must simultaneously achieve a large target mass, excellent energy resolution, and ultra‑low...
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YIFAN LIN (The University of Osaka)09/06/2026, 10:00
The triple-alpha reaction is important not only for determining the abundance of $^{12}$C, but also for understanding the overall nucleosynthesis in the universe. Right after the Big Bang, elements heavier than helium were scarcely synthesized due to the absence of stable nuclei with mass numbers 5 and 8. The triple-alpha reaction overcomes this bottleneck and is considered one of the starting...
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Weiliang Pu (Southern University of Science and Technology)09/06/2026, 10:40
The evolution of shell structure in neutron-rich nuclei remains a central topic in nuclear physics, particularly the disappearance of traditional magic numbers and the persistence or emergence of sub-shell closures far from stability. In this presentation, we report recent progress on direct-reaction studies of light exotic nuclei ${}^{16}$C and ${}^{12}$Be using ATTPC and solenoidal...
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Soki SAKAJO (The University of Osaka)09/06/2026, 11:10
It is well known that many light nuclei exhibit prominent cluster structures, and the $\alpha$ particles play an important role as constituents of the cluster state. Among the cluster states, $\alpha$-condensed states are of great interest because they are analogous to a Bose-Einstein condensate in which all the $\alpha$ clusters are condensed into the single lowest-energy orbit. The...
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Kotaro Uzawa (Japan Atomic Energy Agency)09/06/2026, 13:00
Uzawa's talk
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Chaeyeon Park (IRIS/IBS)09/06/2026, 13:30
Active-target time projection chambers (TPCs) have become powerful tools for experimental studies of nuclear reactions. Direct measurements of astrophysically important (α,p) reactions at low center-of-mass energies remain experimentally challenging due to their low cross sections, requiring stable operation under relatively high beam intensities. To overcome these limitations and extend the...
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Alexey Severyukhin (JINR)09/06/2026, 13:50
One of the successful tools for nuclear structure studies is the quasiparticle random phase approximation (QRPA) with the self-consistent mean-field derived from the Skyrme energy density functional (EDF). The framework allows to relate the properties of the ground states and excited states through the EDF. There is the discrepancy between the QRPA predictions and the measurements for...
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Dr Ningtao Zhang (Institute of Modern Physics, CAS, China)09/06/2026, 14:30
A novel double-mesh micromegas TPC has been developed in the MATE collaboration. This two-stage amplification structure achieves high gain and low ion backflow at low low-pressure. As a tracking detector, it is successfully applied in the direct measurements of the 12C+12C fusion reaction at stellar energies with beam intensity of 80-90 puA. In this report, I will present the recent 12C+12C...
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Fumitaka Endo09/06/2026, 15:00
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Jérôme Giovinazzo09/06/2026, 15:30
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Hajime Togashi (Kyoto University)10/06/2026, 09:00
Togashi's talk
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Dr Tomohiro OISHI (RIBF, RIKEN)10/06/2026, 09:30
Spin correlation is a fundamental quantity to characterize the quantum entanglement.
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In the nuclear physics, quantum-entangled states may exist in various systems and reactions.
We theoretically show that a two-proton (2p) emitter with a diproton-correlated initial state can act as a source of spin-entangled proton pairs.
For the light 2p emitters, Be-6 and Ne-16 nuclei, a violation of the... -
Dr Soomi Cha (Center for Exotic Nuclear Studies, Institute for Basic Science)10/06/2026, 10:20
Active Target Time Projection Chambers (AT-TPCs) are advanced particle detectors that allow precise measurements of astrophysically important nuclear reactions. A new Active Target TPC for Multiple nuclear physics eXperiments (AToM-X) is being developed at the Center for Exotic Nuclear Studies (CENS). It consists of a highly segmented Time Projection Chamber (TPC) using a Micromegas, a field...
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Naoyuki Itagaki (Osaka Metropolitan University)10/06/2026, 10:50
In this presentation, I will focus on the clustering features of light nuclei and show some recent applications. One is 22Mg. The study of the 22Mg is highly important in nuclear physics because it sits at the crossroads of alpha-particle clustering, mirror symmetry breaking, and nuclear astrophysics. I will show the results of the 14O+alpha+alpha model calculation on this nucleus. Also,...
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Dr Nikolay Arsenyev (Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, Dubna, Russia)
A comprehensive analysis of the isoscalar giant monopole resonance (ISGMR) has long been a subject of extensive theoretical and experimental studies [1,2]. The ISGMR properties are presently an important problem not only from the nuclear structure point of view [2,3] but also because of the special role they play in many astrophysical processes such as prompt supernova explosions [4] and the...
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Leiming Hua (Fudan University)
Title: Study on Cluster Structures of 20Ne via Photonuclear Reactions
Authors: Leiming Hua1, Fei Lu2Affiliations:
1. Key Laboratory of Nuclear Physics and Ion-beam Application (MOE), Institute of Modern Physics, Fudan University, 200433, Shanghai, China
2. Shanghai Advanced Research Institute, Chinese Academy of Sciences, 201210, Shanghai, ChinaAbstract :
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²⁰Ne, a typical...