1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

What would the largest anti-matter object be?

  1. Jun 5, 2007 #1
    Any suggestions to what the largest anti-matter object would be?

    Would it be just anti-particles, or would it be anti-hydrogen, or anti-carbon, larger anti-atoms, or multiple anti-atom object, or anti-one_kilogram object, or anti-planet,
    or antistar, or anti-galaxy, or anti-cluster, or anti-universe?
     
  2. jcsd
  3. Jun 5, 2007 #2

    mathman

    User Avatar
    Science Advisor
    Gold Member

    It could be any of the items proposed. However, as far as actual existence is concerned, there isn't any evidence of any anti-matter except at the particle level or anti-hydrogen (created in laboratories).
     
  4. Jun 5, 2007 #3

    DaveC426913

    User Avatar
    Gold Member

    There are wild speculations that segments of the universe could contain whole antimatter galaxies. We wouldn't know it since photons are matter-antimatter agnostic.

    But it is exceedingly unlikely.
     
  5. Jun 6, 2007 #4

    mathman

    User Avatar
    Science Advisor
    Gold Member

    Immediately after the big bang, the universe was much more crowded, so it is highly unlikely that anti-matter could have been segregated from matter.
     
  6. Jun 7, 2007 #5
    I think the segregation is supposed to have occured during rapid inflationary epochs
     
  7. Jun 7, 2007 #6

    mathman

    User Avatar
    Science Advisor
    Gold Member

    Thigs were flying around so fast, it is hard to see that anything could segregate.
     
  8. Jun 8, 2007 #7

    Chronos

    User Avatar
    Science Advisor
    Gold Member

    It is highly unlikely macroscopic amounts of anti-matter [more than atomic particle sized] exist within our universe. There is no viable mechanism explaining how they became segregated. Were they not segregated, life on earth would be difficult to explain. This is a fairly significant mystery in any cosmological model. There is no mechanism to explain the disparity, but an abundance of evidence exists suggesting the disparity is real.
     
  9. Oct 18, 2007 #8
    nearly impossible for there to be large ammounts of anitmatter.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: What would the largest anti-matter object be?
  1. Matter anti matter (Replies: 21)

  2. Anti matter (Replies: 2)

  3. Matter and Anti-Matter (Replies: 9)

Loading...