- #1
metroplex021
- 151
- 0
Hi there - does anyone know a good reference in which it is shown that we can derive QED from the Weinberg-Salam model? (Or if we can't, does anyone know why?) Thanks!
metroplex021 said:Hi there - does anyone know a good reference in which it is shown that we can derive QED from the Weinberg-Salam model? (Or if we can't, does anyone know why?) Thanks!
The Weinberg-Salam model is a theory in particle physics that explains the unification of the electromagnetic and weak nuclear forces. It was proposed in the 1960s by physicists Steven Weinberg and Abdus Salam, and it was later confirmed by experiments to be a valid and accurate description of the fundamental forces of nature.
The Weinberg-Salam model is considered to be a generalization of quantum electrodynamics (QED), which is a theory that explains the interactions between charged particles and electromagnetic fields. The Weinberg-Salam model incorporates the principles of QED and also includes the weak nuclear force, providing a more comprehensive understanding of the fundamental forces.
Yes, QED can be derived from the Weinberg-Salam model. In fact, the Weinberg-Salam model is often referred to as the "electroweak theory" because it unifies the electromagnetic and weak nuclear forces. This means that QED is a subset of the Weinberg-Salam model and can be mathematically derived from it.
Yes, there have been numerous experimental confirmations of the Weinberg-Salam model. One of the most significant was the discovery of the W and Z bosons in 1983, which were predicted by the model. Other experimental evidence includes the precise measurements of the weak mixing angle and the agreement between theoretical predictions and experimental results.
The Weinberg-Salam model is an important component of the standard model of particle physics, which is the most widely accepted theory for understanding the fundamental particles and forces in the universe. It helps to explain the behavior of particles at a fundamental level and has been confirmed by numerous experiments. The model also provides a basis for further research and developments in particle physics.