Introduction

With the discovery of the Higgs boson in 2012, all the particles in the standard model have been found. However, it is widely believed that this is not the end of the particle physics because the standard model is unsatisfactory. In addition, if we look into cosmology, there are many issues which cannot be understood with the current knowledge about particle physics.

I am working on particle physics and cosmology paying particular attention to the physics beyond the standard model (BSM), because such a study should help solving unsolved mysteries. Although, in these days, the border between the particle physics and cosmology is becoming less and less clear, I summarise my activities in these two directions below.

Activities in Particle Physics

One of the main focuses of my research is the study of BSM physics. For such a study, new ideas in quantum field theory are also important, and its study is also a subject of my research. To be more specific, the followings are examples of what I am recently interested in:
  • Models of physics beyond the standard model
  • Grand unification, neutrino mass, strong CP problem
  • A new experimental possibilities to find BSM physics
  • Stability of the electroweak vacuum
In particular, one of my main concern is to study supersymmetric extensions of the standard model. Of course, because there are many possibilities of new physics, I try to be open-minded.

Activities in Cosmology

I have been also working on particle cosmology. In the early epoch, the universe was high temperature (and high density), so that the knowledge about high energy physics is necessary to understand what happened in the early universe. I would like to have a detailed understanding about what happened in the early universe with using the knowledge of BSM physics. In particular, I am interested in:
  • Dark matter physics
  • Baryon asymmetry of the universe
  • Big-bang nucleosynthesis
  • Inflation

Information for Applicants

If you wish to apply graduate course (enrollment in September) with choosing me as a supervisor, please go to this web page and follow the instruction.

You can find the list of my papers here.

If you are considering to apply the graduate course program in our department, you can find an informal guide here (courtesy of Prof. T. Watari).