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RE: La matière noire défiée par les étoiles à neutrons

in #steemstem • 6 years ago

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?

6 years ago in #steemstem by
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     6 years ago 

    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.

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       6 years ago 

      That means; mesons have only two quarks?

      Thanks a lot for the clarification and quick lectures sir.

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         6 years ago 

        One quark and one antiquark to be precise.

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