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Elementary Particle Theory (E) Lab
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A particle theory lab that explores the origins of matter, forces, and spacetime through theory.
AboutAbout the lab
Exploring the foundations of nature with free thinking.
E Lab (the Elementary Particle Theory Lab) explores, from a theoretical standpoint, the most fundamental laws of nature, such as the origins of matter, forces, and time and space.
Founded in 1942 by Shoichi Sakata, the lab has sent many researchers out into the world, including Makoto Kobayashi and Toshihide Maskawa.
The lab's atmosphere is described as "free," and its staff, each an expert in a different field, respond to the varied research ambitions of young researchers.
The lab values free thinking and says the subject of research does not have to be elementary particles.
Key terms
- Standard Model
- The theory that forms the foundation of current particle physics, describing in one framework the particles that carry forces and the quarks and leptons that make up matter
- Supersymmetry
- A symmetry considered between two types of elementary particles with different properties, bosons and fermions
- Dark matter
- Matter that exists in the universe but whose nature is unknown. It may be an unknown elementary particle
ResearchResearch themes
The lab pursues, from a theoretical standpoint, the most fundamental laws of nature, including the origin of matter, the origin of the fundamental forces, and even the origin of time and space themselves. Building on the Standard Model of particle physics, it aims to construct unified theories that go beyond it.
*Illustrative imageSupersymmetry and grand unified theories
The lab builds particle models with supersymmetry and models of grand unified theories that unify the forces. It also studies connections to collider experiments, flavor physics, and cosmological problems such as dark matter and inflation, as well as the mechanisms by which supersymmetry is broken.
*Illustrative imageUncovering the nature of dark matter
Dark matter may be an unknown particle that was produced when the universe was hot and has remained to this day. Based on observational and experimental results, the lab examines theories beyond the Standard Model at the TeV scale from multiple angles, aiming to clarify what dark matter is.
*Illustrative imageSuperstring theory and black holes
Using superstring theory, which regards elementary particles as extended "strings," the lab studies topics such as dualities with gauge theories and higher-form symmetries. With methods such as holography, it also works on clarifying the quantum properties of black holes.
*Illustrative imageQuantum dynamics of gauge fields
The lab calculates the anomalous magnetic moment of the electron to the highest precision. It also calculates the contributions of the strong interaction (QCD) to lepton quantities and studies the non-perturbative dynamics of quantum gauge field theory.
MembersFaculty
The members of E Lab include faculty, researchers, secretaries, and doctoral and master's students.
- ProfessorMasaharu Tanabashi
- ProfessorJunji Hisano
- ProfessorMasaki Shigemori
- Associate ProfessorMasashi Hayakawa
- Associate ProfessorNobuhiro Maekawa
- Associate ProfessorTadakatsu Sakai
- Associate ProfessorKazuhiro Tobe
- Project Assistant ProfessorSyuhei Iguro
- Project Assistant ProfessorTakahiro Terada
- Project Assistant ProfessorMarco Antonio Melchan Medina
VoicesStudent voices
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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: “Fermilab - CDF detector rolling in for run 2” 作者不詳 / Public domain (cropped)
- Supersymmetry and grand unified theories: “CLIC detector” CERN / CC BY 4.0 (cropped)
- Uncovering the nature of dark matter: “Gravitational lensing in the galaxy cluster Abell 370 (captured by the Hubble Space Telescope)” NASA, ESA, the Hubble SM4 ERO Team and ST-ECF / CC BY 4.0 (cropped)
- Superstring theory and black holes: “Black hole's accretion disk blank” NASA’s Goddard Space Flight Center/Jeremy Schnittman, cmglee / CC BY-SA 4.0 (cropped)
- Quantum dynamics of gauge fields: “Feynman Diagram with circles” Starmakerthing / CC BY 4.0 (cropped)
- Related lab (General Relativity and Quantum Cosmology (QG) Lab): “Binary Black Hole” Jeremy Schnittman / CC BY 4.0 (cropped)
- Related lab (High Energy Particle Physics Lab (N)): “Accelerator Desy 2” Milkodromeda / CC BY-SA 4.0 (cropped)
- Related lab (Fundamental Particle Physics (F) Lab): “Fermilab g-2 (E989) ring” Reidar Hahn / CC BY-SA 4.0 (cropped)
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