The major problems of modern fundamental physics, such as the problem of the origin of the inflaton, dark matter and baryon numbers, all show the path to fundamental physics beyond standard cosmology. In this respect, the search for new particles opened up by the use of gravitational wave observations, in particular the bosonic degrees of freedom represented by scalar fields, is very attractive. The central task of this project is to discover new bosons using gravitational wave observations, which can be realised in the near future. For this purose, we propose a new method of searching for new particles using gravitational waves and establish a means of verification, making use of theoretical knowledge.