How can the Chi_b (3P) particle exist if matter and anti-matter annihilate?

feyomi

The recently discovered Chi_b (3P) is made up of a bottom quark and an anti bottom quark.
I thought, however, that should a matter particle meet with its anti counterpart, they would annihilate into pure energy.

Am I missing something?

Thanks.

feyomi	How can the Chi_b (3P) particle exist if matter and anti-matter annihilate? Tweet The recently discovered Chi_b (3P) is made up of a bottom quark and an anti bottom quark. I thought, however, that should a matter particle meet with its anti counterpart, they would annihilate into pure energy. Am I missing something? Thanks.