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Neutrino’s

Neutrino’s. 2-deeltjes “verval”. 1930: Pauli postuleert het .  e.  .  e.  .  . -massa  0. 2000 A neutrino experiment at Fermilab has seen the first direct evidence for the tau neutrino, the most elusive of the 12 particles that make

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Neutrino’s

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  1. Neutrino’s

  2. 2-deeltjes “verval”

  3. 1930: Pauli postuleert het 

  4. e 

  5. e   -massa  0 2000 A neutrino experiment at Fermilab has seen the first direct evidence for the tau neutrino, the most elusive of the 12 particles that make up the Standard Model of the fundamental structure of matter. 2011 Super luminous neutrino’s observed by OPERA?

  6. e e+  +  + ++ materie  e   e  XX antimaterie Leptonen=lichte deeltjes I II III

  7. 41H4He+2e+energie zijnzeldzaam?

  8. afstand snelheid = tijd CNGSCERN Neutrino’s to Gran Sasso 0.0025 s = 2.5 ms = 2,500,000 ns

  9. p  CERN

  10. productie ,K, … • verval •   K   bundel  CERN

  11. ~10,000 ns ~10,000 ns Tijdprofiel “-pulse” at CERN protons  , K, …   protons  , K, …  

  12. OPERA LNGS: Laboratori Nazionali del Gran Sasso

  13.        OPERA detector -bundel

  14. protons on target 100,000,000,000,000,000,000 “POT” Eén OPERA event ~100,000,000,000,000,000,000 Gran Sasso ~16,000 -interacties

  15. Eén OPERA event

  16. De meting Afstand CERN-OPERA: 731278.00.2 meter Tijdverschil CERN-OPERA: 0.00000001 s = 10 ns stat: 6.9 ns & sys: 7.4 ns

  17. vergelijk gemeten & voorspelde tijdspectra Het resultaat shift 1048.5 ns correcties 987.8 ns  6010 ns sneller dan het licht!

  18. Kritische aspecten -bundel profiel @CERN (+timing) -events @OPERA (+timing) GPS (+ ▪▪▪) absolute afstand CERN-OPERA absolute timing @CERN & @OPERA relativistische effecten data analyse (+-events, statistiek, …) “omgevingseffecten”(inhomogeniteiten, aard-deformaties, …)

  19. Hoe verder? en ▪▪▪ ▪ ▪ ▪ check de calibraties Japan U.S.A. “NuMi” 720 km “T2K” 295 km

  20. Implicatie: oorzaakgevolg

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