Particle Data Group

The Particle Data Group (PDG) is like a group of very smart people who study tiny, tiny things called particles. These particles are so small that we cannot see them with just our eyes.

The PDG collects and organizes all the important information about these particles, like how much they weigh, how long they live, how they move, and how they interact with each other. It's like a big book of all the important details about each particle that scientists know about.

Scientists use this information to create theories and test them. They also use this information to build machines that help them study these particles even more closely.

So, the Particle Data Group is like a library of really important information that helps scientists study and understand particles.