Associate Professor of Physics · Xiamen University Malaysia
Hoh Siew Yan 何守仁
I am an experimental particle physicist. My work runs from Higgs boson measurements with CMS at CERN to the Muon g−2 storage ring at Fermilab and the muon EDM search at PSI. At XMUM I lead the high energy physics group and am developing muon radiography for Malaysia’s East Coast Rail Link.
- Position
- Department of Physics, Xiamen University Malaysia, Sepang. Since February 2026.
- Honours
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Breakthrough Prize in Fundamental Physics
2026 with the Muon g−2 collaboration and 2025 with the CMS collaboration. - Latest result
- The positive muon’s anomalous magnetic moment, measured to 127 parts per billion. Phys. Rev. Lett. 135, 101802.
Research
Publications & grants
I am a co-author of more than 417 peer-reviewed papers with the CMS Collaboration. The papers listed here are the ones where I played a key part in the analysis, the review or the writing. Full record on INSPIRE.
Selected publications
2015 – 2026
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2026
Construction and characterization of a muon trigger detector for the PSI muEDM experiment
Guan Ming Wong et al. Eur. Phys. J. C 86, 911 (2026).
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2025
Measurement of the positive muon anomalous magnetic moment to 127 ppb
Muon g−2 Collaboration (D. P. Aguillard et al.). Phys. Rev. Lett. 135, 101802 (2025).
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A compact frozen-spin trap for the search for the electric dipole moment of the muon
A. Adelmann, A. R. Bainbridge, I. Bailey et al. Eur. Phys. J. C 85, 622 (2025).
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Towards non-invasive sediment monitoring using muography: a pilot run at the Shanghai Outer Ring Tunnel
Kim Siang Khaw et al. J. Appl. Phys. 138, 114902 (2025).
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Bayesian optimization of beam injection and storage in the PSI muEDM experiment
Siew Yan Hoh et al. Preprint arXiv:2503.01607 [physics.acc-ph] (2025).
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Development of fast front-end electronics for the muon trigger detector in the PSI muEDM experiment
Tianqi Hu et al. Preprint arXiv:2502.11186 [physics.ins-det] (2025).
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2024
Gamma-ray back emission from nanowire array irradiated by ultra-intense relativistic laser pulse
F. T. T. Houng et al. AIP Advances 14, 115106 (2024).
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Ionisation in nanowire by ultra-short relativistic laser pulse
F. T. T. Houng, S. Y. Hoh and J. F. Ong. Fundamental Plasma Physics 10, 100045 (2024).
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Bulk-induced gravitational waves on braneworld wormhole
Anuar Alias, Imran Yusuff and Siew Yan Hoh. Mod. Phys. Lett. A 39, 2450130 (2024).
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2023
Measurements of the Higgs boson production cross section and couplings in the W boson pair decay channel in proton-proton collisions at √s = 13 TeV
CMS Collaboration. Eur. Phys. J. C 83, 667 (2023).
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2022
Measurement of the Higgs boson width and evidence of its off-shell contributions to ZZ production
CMS Collaboration. Nature Physics 18, 1329–1334 (2022).
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A portrait of the Higgs boson by the CMS experiment ten years after the discovery
CMS Collaboration. Nature 607, 60–68 (2022).
Earlier work, 2015 – 2020 · 7 papers
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2020
Dark matter benchmark models for early LHC Run-2 searches: report of the ATLAS/CMS Dark Matter Forum
D. Abercrombie et al. Phys. Dark Univ. 27, 100371 (2020). arXiv:1507.00966
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Beam test performance of prototype silicon detectors for the Outer Tracker for the Phase-2 Upgrade of CMS
W. Adam et al. JINST 15, P03014 (2020).
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Study of muon pair production from positron annihilation at threshold energy
N. Amapane et al. JINST 15, P01036 (2020). arXiv:1909.13716
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2019
Search for dark matter produced in association with a Higgs boson decaying to a pair of bottom quarks in proton-proton collisions at √s = 13 TeV
CMS Collaboration (A. M. Sirunyan et al.). Eur. Phys. J. C 79, 280 (2019). arXiv:1811.06562
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Using big data technologies for HEP analysis
M. Cremonesi et al. EPJ Web of Conferences 214, 06030 (2019). arXiv:1901.07143
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2016
Dark matter searches at the Large Hadron Collider
S. Y. Hoh, J. Komaragiri and W. A. T. Wan Abdullah. AIP Conf. Proc. 1704, 020005 (2016). arXiv:1512.07376
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2015
Simplified models for dark matter searches at the LHC
J. Abdallah et al. Phys. Dark Univ. 9–10, 8–23 (2015). arXiv:1506.03116
Teaching
Teaching & mentorship
At XMUM I design and teach undergraduate courses in physics and general education, and I supervise student research in muon physics and econophysics.
Courses at XMUM
2026 – present
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PHY104
Ordinary Differential Equation
Undergraduate · Physics
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PHY106
Physics Laboratory II
Undergraduate · Physics
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PHY408
Data Intensive Science
Undergraduate · Physics
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G0385
From Physics to Finance: Quantitative Finance
Undergraduate · General education
Before XMUM, as Senior Lecturer at Universiti Kebangsaan Malaysia (2021 – 2023), I was principal coordinator for the physics subjects of the nuclear science programme: High Energy Physics, Advanced Nuclear Physics, Nuclear Physics, Atomic Physics, and Nuclear Instrumentation and Reactor Technology.
Mentorship
2016 – present
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XMUM · Ongoing
Muon radiography of the ECRL Genting Tunnel
Feasibility of long-term monitoring of cavity formation along Malaysia’s East Coast Rail Link, using cosmic-ray muons.
1 undergraduate student
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XMUM · Ongoing
Econophysics of equity markets
Exploratory research that applies physical laws to characterise the behaviour of equity markets.
1 undergraduate student
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TDLI, Shanghai · 2023 – 2025
Muon g−2 and muEDM
Calorimeter acceptance for Muon g−2, the muon entrance detector, and Bayesian optimisation of beam injection and storage. Two further projects on cosmic muons with high-school students.
3 master’s students, graduated · 2 high-school students
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UKM, Bangi · 2021 – 2023
Collider analysis and laser-plasma simulation
Final-year projects on CMS Open Data with the tag-and-probe method, machine learning for dark matter and Higgs boson detection, and 2D particle-in-cell simulation with EPOCH.
7 bachelor’s students and 1 master’s student, graduated
Earlier, while at Padova and Universiti Malaya, I mentored two master’s students on dark matter searches at the LHC, and two summer students at the Fermilab LPC.