Bosons themselves are fundamental particles and do not undergo the process of compactification. Compactification is a concept primarily associated with extra dimensions in theories like string theory. In string theory, which is a theoretical framework attempting to describe fundamental particles and forces in terms of tiny vibrating strings, the theory requires extra dimensions beyond the familiar three spatial dimensions. These extra dimensions, if they exist, would need to be compactified or "curled up" in a way that they become too small to be directly observed.
In the context of string theory, bosons (as well as fermions) arise from the vibrational modes of the fundamental strings. These vibrational modes can be influenced by the geometry of the extra dimensions. The specific way in which the extra dimensions are compactified can affect the properties of the particles and their interactions. The shape and size of the compactified extra dimensions can give rise to different particle masses, charges, and other observable quantities.
Therefore, while bosons themselves are not compactified, the nature of the extra dimensions in string theory and the way they are compactified can have implications for the behavior of bosonic particles within that framework.