boson

[chitrangda]

In particle physics, a meson is a strongly interacting boson—that is, a hadron with integral spin.please explain...what is boson..

 

also explain Fermi–Dirac statistics

[5614]

Anything with an integral spin is a boson.

 

Anything with a half-integer spin is a fermion.

 

Fermi-Dirac stats apply to all fermions, and talks about the distribution of fermions. The first thing which comes in to my mind is how electrons (which are fermions) follow the Pauli exclusion principle, which says that every electron in a system (e.g. orbitting a nucleus) must be in a different quantum state.

 

Here's the relevant Wiki page.

 

If you have more questions if you could make them more specific than "explain Fermi–Dirac statistics" it would be easier for us.