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RE: La matière noire défiée par les étoiles à neutrons
I followed the link to the English version.
There's an unrelated question I want to ask: Sometimes ago, I heard about the mesons; are these part of the baryonic dark matter, or are they particles of their own?
Hope I'm not asking a stupid question?
Mesons are particles made of a quark-antiquark pair and are not baryons. Their net baryon number is indeed 0 (+1 for the quark and -1 for the antiquark).
Here, when I talk about baryonic dark matter, we really talk about new particles that for some reasons possess a baryon number. But they are not made of quarks.
I hope this clarifies.
That means; mesons have only two quarks?
Thanks a lot for the clarification and quick lectures sir.
One quark and one antiquark to be precise.