The purpose of this study is to develop a method for calculating multiloop diagrams in quantum field theory, specifically in the context of the Phys.Lett.B267:382-388,1991 paper. This method allows for more accurate and efficient calculations of physical quantities in particle physics.
A multiloop diagram is a graphical representation of the interactions between particles in quantum field theory. It consists of multiple loops, each representing a different interaction between particles.
The method described in the paper uses a new technique called the "subtraction method" which allows for the cancellation of divergences (infinities) in the calculations. This leads to more accurate results and a more efficient way of calculating multiloop diagrams compared to previous methods.
This method can be applied to various areas of particle physics, such as calculating cross sections, decay rates, and scattering amplitudes. It can also be used in the development of new theories and models in particle physics.
Like any scientific method, there are limitations to this approach. The subtraction method used in this paper may not be applicable to all types of multiloop diagrams, and further research is needed to apply it to a wider range of scenarios. Additionally, the calculations can become increasingly complex as the number of loops increases, making it difficult to apply this method to very high-order diagrams.