- #1
luxiaolei
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Hi,all, what is decay length in particle physics? I could not find on web, so frustrating. Thanks a lot for any helps!
The decay length is a measure of how far a particle travels before it decays into smaller particles. It is commonly used in particle physics to study the properties and interactions of particles.
The decay length is calculated by dividing the momentum of the decaying particle by its decay rate. This gives an estimate of the distance the particle will travel before it decays.
The decay length of a particle is affected by its mass and its decay rate. A heavier particle will have a shorter decay length, while a particle with a shorter decay rate will have a longer decay length.
The decay length is important in particle physics because it provides information about the lifetime and interactions of particles. It can also help in identifying new particles or studying fundamental forces.
In experiments, the decay length of a particle is measured by observing the decay products and the distance they travel from the point of decay. Sophisticated detectors and measurement techniques are used to accurately determine the decay length of particles.