Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

B Charge is Quantized, so why...

  1. Sep 3, 2016 #1
    So why do Quarks have fractional non-discrete charge? Wouldn't it just be easier to just define ##\frac{1}{3}e## as +e and vice versa to preserve the discreetness of what we define as e?
     
  2. jcsd
  3. Sep 3, 2016 #2

    phinds

    User Avatar
    Gold Member
    2016 Award

    "e" was defined long before quarks were dreamed of.
     
  4. Sep 3, 2016 #3
    Maybe so, but it still doesn't make sense why e wasn't just redefined. I don't get how we can say e is discrete, but continuous for elementary particles.
     
  5. Sep 3, 2016 #4

    Dale

    Staff: Mentor

    It is still discrete. It comes only in integer multiples of 1/3 e
     
  6. Sep 3, 2016 #5
    That is what I was assuming was the answer, but wasn't sure. Thanks.

    Any idea why they just didn't make the fractional charge the base constant?
     
  7. Sep 3, 2016 #6

    Dale

    Staff: Mentor

    As @phinds said, when e was discovered quarks were unknown. Redefining it later would have been inconvenient.
     
  8. Sep 3, 2016 #7
    Got it, thank you.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted



Similar Discussions: Charge is Quantized, so why...
  1. Why Second Quantization? (Replies: 11)

  2. Charge quantized (Replies: 2)

  3. Why so many energies (Replies: 5)

Loading...