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Hamaguchi Lab
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A theory lab exploring physics beyond the Standard Model of particle physics.
AboutAbout the lab
Toward physics beyond the Standard Model.
The Hamaguchi Lab studies what kind of physics lies beyond the energy scale of the Standard Model of particle physics.
Its goal is to find a more fundamental unified theory of nature.
The lab covers a wide range of topics, from particle model building to inflation, baryogenesis, and dark matter.
The lab also pays close attention to results from the latest particle physics experiments and cosmological observations, and aims to feed them back into its theoretical research.
Key terms
- Standard Model
- The theory that explains the behavior of elementary particles and the forces acting between them, forming the foundation of current particle physics
- Grand unified theory
- A theory that attempts to explain the electromagnetic force, the weak force, and the strong force, three of the forces of nature, in a single unified framework
- Baryogenesis
- The mechanism by which the imbalance arose in which the present universe is left with almost only matter and almost no antimatter
ResearchResearch themes
The lab is interested in what kind of physics exists beyond the energy scale of the Standard Model of particle physics. In a single phrase, its research subject is "physics beyond the Standard Model."
*Illustrative imageParticle Model Building
This research builds models of elementary particles beyond the Standard Model, ranging from grand unified theories to the TeV scale. The lab works on particle phenomenology, including supersymmetric theories and grand unified theories.
*Illustrative imageInflation
Inflation is the idea that the newborn universe was stretched rapidly. From the standpoint of early universe cosmology, the lab studies how inflation relates to physics beyond the Standard Model.
*Illustrative imageBaryogenesis
The present universe is filled with matter, and almost no antimatter can be found. The lab theoretically investigates how this matter-antimatter asymmetry came about.
*Illustrative imageDark Matter
Starting from models, the lab considers what kind of particle dark matter, whose identity remains unknown, might be, and studies what its signals would look like. The themes also extend to the boundary with astrophysics.
MembersFaculty
The members of the Particle Theory Lab consist of faculty, researchers, secretaries, doctoral and master's students, and visiting research fellows.As of 2026
- ProfessorKoichi HamaguchiPublications ↗
VoicesStudent voices
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RelatedLabs similar to Hamaguchi Lab
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Moroi LabFaculty of Science, Department of PhysicsPhysics beyond the Standard Model, especially supersymmetric…
Itow LabFaculty of Science, Department of PhysicsNeutrinos, dark matter, and cosmic particle physics (T2K, et…The information on this page is compiled by the LabLog team from the lab's public information and interviews. For corrections or removal requests, please contact LabLog, not the lab.
Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Cosmic web” Volker Springel / Max Planck Institute For Astrophysics / CC BY-SA 4.0 (cropped)
- Particle Model Building: “CMS Higgs-event” Lucas Taylor / CERN / CC BY-SA 3.0 (cropped)
- Inflation: “Cosmic Microwave Background (CMB)” ESA and the Planck Collaboration / CC BY 4.0 (cropped)
- Baryogenesis: “AEgIS antihydrogen production trap” Brice, Maximilien; Ordan, Julien Marius / CC BY 4.0 (cropped)
- Dark Matter: “Dark matter halo” Wikipedia利用者 Cosmo0 / Public domain (cropped)
- Related lab (Saito Lab): “J-PARC Surface Muon Beamline” Kestrel / CC BY-SA 4.0 (cropped)
- Related lab (Liang Lab): “NuclideMap stitched 2” NuclideMap.PNG: The viewer derivative work: Neokortex (talk) / Public domain (cropped)
- Related lab (Moroi Lab): “Bullet Cluster with DECam (noirlab2603a)” CTIO/NOIRLab/DOE/NSF/AURA Image Processing: T.A. Rector (University of Alaska Anchorage/NSF NOIRLab) & M. Zamani (NSF NOIRLab) / CC BY 4.0 (cropped)
- Related lab (Itow Lab): “Neutrino detector - National Museum of Nature and Science, Tokyo - DSC07827” Daderot / CC0 (cropped)
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