# Scalar boson

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A scalar boson is a boson whose spin equals zero. Boson means that it has an integer-valued spin; the scalar fixes this value to 0.

The name "scalar boson" arises from quantum field theory. It refers to the particular transformation properties under Lorentz transformation.

## Examples

• One very popular quantum field theory, which uses scalar bosonic fields and is introduced in many introductory books to quantum field theories1 for pedagogical reasons, is the so-called $\Phi^4$-theory. It usually serves as a toy model to introduce the basic concepts of the field.

## References

1. ^ Michael E. Peskin and Daniel V. Schroeder (1995). An Introduction to Quantum Field Theory. Westview Press. ISBN 0-201-50397-2.

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