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Detecting superparticles

  1. Dec 7, 2009 #1
    The LHC may help discover the existence of neutralinos, which are WIMPs and hard to detect.

    If this is due their charge being 0 and therefore non-reactive to EM detection, why can't we detect another superparticle,one that does have a charge, and therefore reacts with light so that we could detect it?
    eg the selectron or the super particle of a proton?

    thanks

    Arthur
     
  2. jcsd
  3. Dec 8, 2009 #2
    I usually leave the replies to people who know what they are talking about. Unfortunately none of them have chimed in.

    It is usually thought that supersymmetry is a badly broken symmetry. Which is a fancy way of saying superparticles are heavy, maybe a TeV, which is why they haven't been seen.

    It is often postulated that supersymmetry is conserved. (They call it R-gauge or some fancy term like that.) So the lightest supersymetric particle (LSP) is stable and should be buzzing around the universe if it exists. The LSP is electrically neutral and colorless from cosmology constraints so the neutralino is an excellent candidate for it.
     
  4. Dec 8, 2009 #3

    tom.stoer

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    Science Advisor

    the lightest, stable superparticle will not interact with ordinary matter (including the detector); therefore the signature is missing energy and momentum
     
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