Kim Siang Khaw

We’re proud to have joined the 2025 Open Lab Day—“Touching the Invisible Dimensions of the Universe”—hosted by our institute in Zhangjiang. Our team (Jiangtao, Jun Kai, Xingyun, Yinghe, Yonghao) brought the mysteries of particle physics to life with two interactive exhibits: a Cloud Chamber and a Spark Chamber, captivating over 200 visitors!

The cloud chamber unveiled ethereal trails of cosmic rays and alpha particles, transforming invisible subatomic activity into a visual spectacle. Nearby, the spark chamber dazzled with crackling light bursts triggered by passing particles, sparking awe and curiosity across all ages. These installations bridged the event’s theme of “极大” (cosmic vastness) and “极小” (subatomic realms), echoing cutting-edge research like dark matter detection and neutrino studies showcased in lab tours.

From kids tracing particle paths to adults pondering cosmic riddles, the joy of discovery was universal. Special thanks to our team for translating complex science into wonder! For photos, highlights, and CCTV-2 coverage, explore the full recap here: https://mp.weixin.qq.com/s/2rI6xrp7U_onqsdfTiRx2w. Together, we’re igniting curiosity—one particle at a time! ✨

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Our group recently participated in the MIP2025 workshop at Hunan University in Changsha from May 17th to 19th. Kim Siang served as the session chair for the muon-bound-state session, while three of our group members (Yusuke, Guan Ming, and Siew Yan) presented at the plenary session for their work on the Shanghai Muon Source, the muEDM experiment, and the Shanghai METRO platform for education, research and outreach, respectively. For more information about the workshop, please visit https://indico.ihep.ac.cn/event/24109/. The next edition of the workshop, MIP2026, will be hosted by the Institute of Modern Physics (IMP) in Huizhou! We are all very excited about it!

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We are accepting students for the SJTU Summer Research Internship this summer! The program we offer is Fundamental and Applied Muon Physics: measurement of muon properties using tabletop experiments and 3D density imaging using muography detectors.

Eligibility Requirements:
– Students must have completed at least one year of an undergraduate program and be currently enrolled as an undergraduate;
– Hold at least a 3.0 GPA on a 4.0 scale or equivalent;
– Students from non-English speaking countries must provide an English language proficiency certificate.

The program will start on Jun 30th and last until Aug 10th, 2025. Please apply by May 30th for the application to be considered.

You will find more information about the internship (Project 154) in this brochure: https://global.sjtu.edu.cn/en/news/view/718.

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Kim Siang recently participated in the Workshop on the Development of a Particle and Nuclear Physics Platform Based on SHINE’s High-Energy, High-Current Polarized Electron Beam, held at Fudan University from April 12 to 13, 2025. He delivered a talk on the Muon Tomography system for the calorimeter muon rejection rate study and also discussed the SHINE Muon Source. More information about the workshop can be found at https://imp.fudan.edu.cn/10/de/c45420a725214/page.htm.

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Kim Siang and Guan Ming participated in the QUP 2025 workshop held at KEK, Japan. QUP stands for the International Center for Quantum-field Measurement Systems for Studies of the Universe and Particles. This edition of the workshop focuses on searching for unknown quantum fields and studying gravity through low-temperature detectors and quantum sensor technology. Guan Ming also gave a poster presentation on the development of the muon trigger detector for the muEDM experiment at PSI. More details about the workshop can be found at https://conference-indico.kek.jp/event/317/.

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Our group participated in the 1st Europe-China-Japan Workshop on Muon Physics held at the Minhang campus of the University from 24-25 March, 2025. Kim Siang presented a talk on the SHINE Muon Source to share the latest developments of the project. Then, together with collaborators at SHINE, a tour of the SSRF and SHINE was conducted. The workshop was very successful and sparked many interesting discussions regarding muon physics. More information about the workshop can be found here: https://indico-tdli.sjtu.edu.cn/event/3895/.

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Kim Siang was invited to present the current status of the Fermilab Muon g-2 and the PSI muEDM experiment at the 6th KMI International Symposium – “Quest for the Origin of Particles and the Universe” (KMI2025) from March 5 to 7, 2025. The workshop was held at the prestigious Kobayashi-Maskawa Institute of Nagoya University. More information about the workshop can be found here: https://indico.kmi.nagoya-u.ac.jp/event/10/.

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Kim Siang was a lecturer at the TDLI & INPAC Winter School in Particle Physics 2025. The school targeted undergraduate students with at least a year of university physics education who were interested in particle physics. He delivered a lecture on muon physics titled “From muon production, muon research to muon applications. ” More details about the winter school can be found here: https://indico-tdli.sjtu.edu.cn/event/2696/.

Dr. Siew Yan Hoh recently participated in the Particle Physics and Nuclear Physics Shanghai Symposium 2024, held at Fudan University from December 20 to 22. Representing the Muon Physics Group at Shanghai Jiao Tong University (SJTU), Hoh delivered an insightful presentation titled “Progress in SJTU Muon Physics Research”, highlighting the group’s significant contributions to advancing muon physics.

The presentation detailed the group’s involvement in major international collaborations, including the Muon g-2 experiment at Fermilab. Our group focuses on precision measurements of the muon’s magnetic dipole moment, contributing to anomalous precession measurements and beam dynamics corrections. New results, expected in 2025, are anticipated to improve precision by a factor or two. Dr. Hoh also discussed the group’s contributions to the Muon Electric Dipole Moment (muEDM) experiment at PSI, where recent test beam activities demonstrated a prototyped muon trigger detector with a signal efficiency exceeding 95%.

On the domestic front, the group has been prototyping a high-repetition-rate muon source using the SHINE facility’s electron beam. Preliminary results have shown a promising yield of approximately 10 million muons per second, supporting applications in muSR studies and muon tomography. Our group is also exploring innovative uses of cosmic-ray muography to tackle practical challenges, such as estimating tunnel overburden, further showcasing the real-world utility of muon physics.

The symposium provided an excellent platform for collaboration and knowledge exchange. Hoh’s presentation underscored the importance of fundamental research in solving complex challenges. It was a great opportunity to present our research program’s progress and to meet up with fellow physicists in the same region.

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Hoh Siew Yan recently participated in the National Conference 2024 (PERFIK 2024), held in Malaysia from November 3 to 8, 2024. Representing the group, Hoh delivered two insightful presentations that highlighted the team’s ongoing efforts in both fundamental research and educational outreach.

Under the Particle Physics category, Hoh’s presentation, titled “Precision Measurement of the Muon’s Electric and Magnetic Dipole Moments”, focused on two key experiments: the Muon g-2 Experiment at Fermilab and the Muon Electric Dipole Moment (muEDM) Experiment at PSI. The talk highlighted the ongoing success of the g-2 Experiment, which has achieved unprecedented precision in measuring the muon’s anomalous magnetic moment, and its implications for physics beyond the Standard Model. Hoh also discussed the muEDM Experiment, currently in its commissioning phase, emphasizing its potential to provide groundbreaking insights into charge-parity violation through a highly sensitive search for the muon’s electric dipole moment.

In the Physics Education category, Hoh presented “From Clouds to Sparks: Scintillating Cosmic Rays in the Classroom.” This engaging talk showcased the group’s efforts to bring the wonders of cosmic-ray physics into the classroom. By using interactive tools like cloud chambers, spark chambers, and scintillation detectors, Hoh demonstrated how complex concepts can be made accessible to students. The presentation underscored the importance of hands-on experiments in inspiring curiosity and fostering a deeper understanding of high-energy physics among learners.

The PERFIK Conference, an annual event organized by Institut Fizik Malaysia (IFM)—the sole representative body for physicists and those engaged in physics-related work in Malaysia—serves as a dynamic platform for advancing the field. IFM aims to promote activities that further physics research, foster collaboration in education, training, and practice, and elevate the professional status of physicists. Hoh’s presentations received considerable attention and sparked lively discussions, reflecting the strong interest in both the technical and educational aspects of the group’s work. More details about the conference can be found at https://perfik.ifm.org.my/.

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