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Unraveling the Neutrino Mystery: A Journey Through Physics and Astrophysics

Explore the enigmatic neutrino particle, from its peculiar properties to its profound implications in physics and cosmology. Discover the mysteries of neutrino oscillations, the solar neutrino problem, and the potential of superluminal neutrinos. Delve into the implications for supernovae, nucleosynthesis, and the fundamental forces of the universe. Journey into the depths of theoretical and experimental physics to uncover the holy grail of understanding the micro and macroscopic worlds.

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Unraveling the Neutrino Mystery: A Journey Through Physics and Astrophysics

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  1. Neutrino: Catch me if you can! University of Novi Sad Department of Physics Branislav Nikolić darthagal@gmail.com

  2. place your bets... lane 1 lane 2

  3. cast: neutrino! - spin 1/2 - smallest mass - only 1 force (W, Z) - very strange particle... photon

  4. weak force – only left neutrinos and right antineutrinos no left antineutrinos or right neutrinos! (???) - spin vector parallel to momentum vector (right particle) or antiparallel (left particle) left neutrinos and right antineutrinos why the asymetry?! (weak force) - implies non-zero mass of neutrino... ...which we can’t measure.

  5. Solar neutrino problem - neutrinos from the Sun: detected only 1/3 of the predicted number solved: neutrino oscillations (mixing)

  6. mass states flavor states produce an electron neutrino and detect a muon neutrino neutrino mixing (oscillations) – fundamental problem of New QM

  7. different for antineutrinos! (? CP violation...?)

  8. why neutrinos? why oscillations? nucleosynthesis – sensitive to neutrino oscillations! no neutrinos – no supernovae II (past decade research) > 95% of grav. energy carried away by neutrinos only! “neutrino driven wind” – the essence of explosion!

  9. - neutrinos from the Early Universe - if oscillations then when decoupled from radiation? Cosmic Neutrino Background? Maybe one day... (deeper into past than CMB – even before nucleosynthesis!)

  10. GOAL wait a nanosecond...a superluminal neutrino??? wins by 60 nanoseconds!

  11. - new energies for supernovae - more adjusted explosion mechanisms for supernovae - new energies for nucleosynthesis - new models for nucleosynthesis - no more STR, no more E=mc^2, no more GTR, no more QFT....????? - good bye to Lorentz invariance on macroscopic level?!?! where is the beauty in that?!

  12. - exploring both theoretical (fundamental) and experimental concequences in either case (superluminal or not) are a way to the holy grail in physics and prhaps in astrophysics-cosmology. conclusion: if you want to talk about the connection of micro and makroscopic world, you might want to consider neutrinos.

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