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Solar neutrino problem

  1. Apr 11, 2004 #1

    wolram

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    can anyone tell me if the, "solar neutrino problem", has been
    solved, i ask because, i found a April 2004 paper that "solves"
    the problem by linking to Planck scale foams aka LQG.
    the thread is "quantum gravity planck scales" in S and GR.

    http://arxiv.org/abs/hep-ph/0404014
     
    Last edited: Apr 11, 2004
  2. jcsd
  3. Apr 11, 2004 #2
    I don't know if it fully solved the problem, but the Sudbury Neutrino Observatory (SNO) confirmed neutrino oscillations in the last couple of years.
     
  4. Apr 12, 2004 #3

    chroot

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    There is very strong evidence these days that neutrinos oscillate. I wouldn't go so far as to say it's a closed case, however.

    - Warren
     
  5. Apr 12, 2004 #4

    oj

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    There is still a lot of ongoing research into neutrino oscillations, the so called "neutrino factory". The solar neutrino problem is far from solved.
     
  6. Apr 12, 2004 #5

    ZapperZ

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  7. Apr 12, 2004 #6

    wolram

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    thankyou all, i can see that the therory in the paper i pointed to
    may be worthy of consideration.
     
  8. Apr 12, 2004 #7

    Nereid

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    If by 'solar neutrino problem' you mean 'why do the classic solar neutrino detectors find only ~65% of the neutrinos predicted from solar models?', then the problem has been solved, in the sense that the solar models have been found to be sound, and the 'deficit' of neutrinos laid at the door of neutrino oscillations. In this sense, it's no longer a 'solar' neutrino problem, rather a 'neutrino' problem.
     
  9. Apr 12, 2004 #8

    wolram

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    --------------------------------------------------------------------------
    i understand better now, the neutrino is a schizophrenic particle
    that can change character every few hundred miles. but what
    causes these changes?
     
  10. Apr 12, 2004 #9

    Nereid

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    Excellent question!

    In one way, the answer is very simple: at least one flavour has non-zero mass. However, this just pushes the question back - why does it have non-zero mass (or, why don't the other flavours also have non-zero mass)? Also, what is that mass? And, will the Higgs help us understand neutrinos better? Do we need a SUSY theory??
     
  11. Apr 13, 2004 #10
    I once read an article of Baez that said that the key was in a matrix called the Maki-Nakagawa-Sakata matrix. I even remember that he described that matrix like "misterious"
     
  12. Apr 13, 2004 #11
    Why don't muon neutrinos oscillate with electron neutrinos?
     
  13. Apr 13, 2004 #12
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