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WIMPS & Neutrinos

What do we know about. WIMPS & Neutrinos. ?. G.G.Ross, Edinburgh, 9 th February 2005. Neutrinos. They exist!. Massive. Mixing angles large. Limited room for sterile neutrino – wait for MiniBoone. What do we know about. WIMPS & Neutrinos. ?. ?. WIMPS. What we don’t know about.

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WIMPS & Neutrinos

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  1. What do we know about WIMPS & Neutrinos ? G.G.Ross, Edinburgh, 9th February 2005 Neutrinos They exist! Massive Mixing angles large Limited room for sterile neutrino – wait for MiniBoone

  2. What do we know about WIMPS & Neutrinos ? ? WIMPS

  3. What we don’t know about WIMPS & Neutrinos ? Neutrinos : Majorana or Dirac? Hierarchical or nearly degenerate? Inverted hierarchy or normal hierarchy? Origin of small mass - seesaw? (Non-Abelian) family symmetry?

  4. What we don’t know about WIMPS & Neutrinos ? Does it exist? MOND alternative Dark Matter : - Only visible matter gives structure seen - Gravitational lensing - Density perturbations? Milgrom, Beckenstein

  5. What we don’t know about WIMPS & Neutrinos ? Does it exist? Dark Matter : Where is it? Basel group astro-ph/0212516,0312461 astro-ph/0403154

  6. What we don’t know about WIMPS & Neutrinos ? Does it exist? Dark Matter : (WIMPS) Where is it? What is it? Sterile neutrinos? Axions? SUSY – neutralinos, sneutrinos, gravitinos, axinos Little Higgs candidate? KK state? Wimpzilla? Cryptons,… Can we find it?

  7. What we don’t know about WIMPS & Neutrinos ? Neutrinos : Majorana or Dirac? Hierarchical or nearly degenerate? Inverted hierarchy or normal hierarchy? Origin of small mass - seesaw? (Non-Abelian) family symmetry?

  8. Dirac or Majorana?

  9. still room … A degenerate spectrum is indicative of a non-Abelian family symmetry Barbieri, Hall, Kane, GGR Antush, King

  10. Symmetries Coherent picture of quark and lepton masses and mixing? Family? Family?

  11. Masses 1 GeV Mixing 10-1 10-2 10-3 10-4 eV DATA : ? Bi-Tri Maximal Mixing … Harrison Scott Non Abelian Structure?

  12. Barbieri, Hall, Kane, GGR De Madeiros, GGR 

  13.  Neutrinos?

  14. What we don’t know about WIMPS & Neutrinos ? Does it exist? Dark Matter : (WIMPS) Where is it? What is it? Sterile neutrinos? Axions? SUSY – neutralinos, sneutrinos, gravitinos, axinos Little Higgs candidate? KK state? Wimpzilla? Cryptons,… Can we find it?

  15. What is dark matter? Standard Model Neutrinos? -No SM interactions apart from mixing Sterile neutrinos? Axions? With R-parity conservation LSP stable -nature of LSP model dependent SUSY candidates gravitinos, axinos – very weakly interacting, massive neutralinos, sneutrinos – (<)SM interactions

  16. Neutralino mass matrix LSP sensitive to parameters CMSSM :

  17. CMSSM Ellis, Olive, Santoso, Spanos

  18. Ramage,GGR

  19. For some compactifications LKP stable KK state For low scale of compactification LKP can make up dark matter : Wimpzilla

  20. Can we find WIMPS? Sterile neutrinos? Axions? SUSY – neutralinos, sneutrinos, gravitinos, axinos Little Higgs candidate? KK state? Wimpzilla? Cryptons,…

  21. Can we find WIMPS? Sterile neutrinos? Axions? SUSY – neutralinos, sneutrinos, gravitinos, axinos Little Higgs candidate? KK state? Wimpzilla? Cryptons,… Very low scattering cross sections

  22. Can we find WIMPS? Sterile neutrinos? Axions? SUSY– neutralinos, sneutrinos, gravitinos, axinos Little Higgs candidate? KK state? Wimpzilla? Cryptons,… Neutralino interactions exhaustively studied

  23. CMSSM : Neutralino searches Ellis, Olive, Santoso, Spanos

  24. CDMS II excluded Ellis, Olive, Santoso, Spanos

  25. Kaluza Klein searches not visible by current searches Annihilation products ; Look for galactic annihilation production of Signals could be visible if galactic cusps exist – for LKP sharp cutoff on positron energy

  26. SUMMARY What we could know about WIMPS & Neutrinos ? Neutrinos : Majorana or Dirac?  Hierarchical or nearly degenerate?  Inverted hierarchy or normal hierarchy?  Origin of small mass - seesaw? ? (Non-Abelian) family symmetry? ?  Wimps Sterile neutrinos? Indirect detection Axions? SUSY –neutralinos, sneutrinos, gravitinos, axinos Little Higgs candidate? KK state? Wimpzilla? Direct detection possible Cryptons,…

  27. Cannot align Yukawa and A terms Vives, GGR Similar structure for charged leptons Neutrino mixing not related to large RH mixing

  28. SUMMARY What we could know about WIMPS & Neutrinos ? Neutrinos : Majorana or Dirac?  Hierarchical or nearly degenerate?  Inverted hierarchy or normal hierarchy?  Origin of small mass - seesaw? ? (Non-Abelian) family symmetry? ?  Wimps Sterile neutrinos? Indirect detection Axions? SUSY –neutralinos, sneutrinos, gravitinos, axinos Little Higgs candidate? KK state? Wimpzilla? Direct detection possible Cryptons,…

  29. CMSSM SO(10) Ramage, GGR

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