How many elementary particles are there?

  • Thread starter ehrenfest
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  • #1
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Main Question or Discussion Point

I am confused. I thought that the standard model included 6 quarks and 6 antiquarks, 6 leptons and 6 antileptons and 5 bosons (W+,W-,Z,photon,gluon).

However in Griffith's "Introduction to Elementary Particles" (on page 48) he says that there are "12 leptons, 36 quarks, 12 mediators".

I am thinking of the t,b,u,d,s,c and their antiparticles for the quarks.

So can someone please account for the remaining 24 quarks and the remaining 7 bosons?
 

Answers and Replies

  • #2
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So can someone please account for the remaining 24 quarks and the remaining 7 bosons?
Color is as good a charge as electric charge. You miss a factor 3 on quarks, and a factor 9 on gluons minus one color scalar gluon.
 
  • #3
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Higg's Boson and graviton are the only other fundamental bosons I've heard of, and they're not even verified yet.

Oh, if you count the 8 gluons it works out. Der...
 
  • #4
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Higg's Boson and graviton are the only other fundamental bosons I've heard of, and they're not even verified yet.
As mentioned by the OP, the photon, the Ws and the Z are other gauge bosons. Those are established beyond doubt.
 
  • #5
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Yeah, I wish I could have deleted that post. For the future, I promise to be less impulsive.
 

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