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Possible Detection of Neutrinos from a Solar Flare

Possible Detection of Neutrinos from a Solar Flare. Jere Jenkins Ephraim Fischbach John Buncher Tom Gruenwald Tasneem Mohsinally Dennis Krause Josh Mattes John Newport. A New Test of Randomness. Data from: Alburger, et al., Earth and Planet. Sci. Lett., 78 , (1986) 168-176.

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Possible Detection of Neutrinos from a Solar Flare

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  1. Possible Detection of Neutrinos from a Solar Flare Jere Jenkins Ephraim Fischbach John Buncher Tom Gruenwald Tasneem Mohsinally Dennis Krause Josh Mattes John Newport

  2. A New Test of Randomness

  3. Data from: Alburger, et al., Earth and Planet. Sci. Lett., 78, (1986) 168-176

  4. Data from: Alburger, et al., Earth and Planet. Sci. Lett., 78, (1986) 168-176

  5. Data from Siegert, et al., Appl. Radiat. Isot. 49, 1397 (1998) Fig. 1

  6. Data from Siegert, et al., Appl. Radiat. Isot. 49, 1397 (1998) Fig. 1

  7. Data from Yoo, et al., Phys Rev 68, 092002 (2003)

  8. Motivation for Purdue Experiments • Correlation between BNL and PTB data • Correlation of these data with 1/R2 Earth-Sun distance

  9. Sunspot 930 Source of Dec 06 Flares

  10. (7.51±1.07) x 105 Events missing

  11. 32Si Launch 8/3/2007 226Ra Arrival 5/25/2008 Chen, Okutsu, and Longuski

  12. Chen, Okutsu, and Longuski

  13. 226Ra 32Si Chen, Okutsu, and Longuski

  14. Potential Missions for Experiment • Monitor decay rate on Earth. • Precisely measure variations in decay rates between periapsis and apoapsis. • Stable orbit around stable Lagrange points. • May have significant difference between apoapsis and periapsis. • Mars Science Laboratory. • Radioisotope power system for generation of electricity from the heat of radioactive decay. • Jupiter Polar Orbiter (Juno). • Map Jupiter's gravitational and magnetic fields. • Europa Jupiter System Mission. • Likely to have radioisotope thermoelectric generator (RTG) on board. • Titan Saturn System Mission. • Likely presence of RTG onboard. • Europa Astrobiology Lander. • Likely presence of RTG onboard. • Solar Probe Plus • Spacecraft designed to plunge deep into the sun's atmosphere • Heliophysical Explorers Solar Orbiters and Sentinels. • Multiple close approaches to the sun.

  15. NASA’s Upcoming Missions Mars Science Laboratory Launch: September 2009 • Can measure radiation produced by the interaction of space radiation with the Martian atmosphere and surface rocks and soils. • Carries radioisotope power system to generate electricity from the heat of plutonium's radioactive decay. Juno Launch: August 2011 • Will precisely map Jupiter's gravitational and magnetic fields to assess the distribution of mass in Jupiter's interior, including properties of the planet's structure and dynamics. Chen, Okutsu, and Longuski

  16. Spatial Variation of the Fine Structure Constant  For alpha decay (e.g., 226Ra  222Rn + 4He) From our 226Ra data, This may be incompatible with existing WEP and 5th force constraints. References: D. J. Shaw, gr-qc/0702090; J.D. Barrow and D. J. Shaw, arXiv:0806:4317; J.-P. Uzan, Rev. Mod. Phys. 75, 403 (2003)

  17. Possible Mechanism

  18. Beta decay formulae

  19. Beta decay Formulae

  20. Variation in Solar Neutrino Flux For -decay, where  is extremely sensitive to small shifts in E0 Assume E0  E0+, where  arises from solar neutrinos, then Next, assume where For an unpolarized sample,

  21. Variation in Solar Neutrino Flux (cont’d) Compare this to the change induced by This may be compatible with current limits on neutrino magnetic dipole moments.

  22. Summary • BNL and PTB data indicate an annual modulation of 32Si and 226Ra decay rates strongly correlated with 1/R2 • Data taken during the 12-Dec 2006 solar flare on 54Mn also showed a response of the decay rate to solar flux. • These data are consistent with a modulation of nuclear decay rates by solar neutrinos and, perhaps, by some other field. • Detailed mechanisms to account for these data can be tested in upcoming NASA Mars missions and the NASA Sentinels mission.

  23. END

  24. Data from: Alburger, et al., Earth and Planet. Sci. Lett., 78, (1986) 168-176

  25. Data from: Alburger, et al., Earth and Planet. Sci. Lett., 78, (1986) 168-176

  26. Data from: Alburger, et al., Earth and Planet. Sci. Lett., 78, (1986) 168-176, And NASA, http://omniweb.gsfc.nasa.gov/

  27. Data from: Alburger, et al., Earth and Planet. Sci. Lett., 78, (1986) 168-176, And NASA, http://omniweb.gsfc.nasa.gov/

  28. Earth-Sun Distance as a Function of Time t = time in seconds t0 =January 5, Perihelion each year

  29. Correlation Between Flare and Decay Data • Undecayed the 54Mn data, and then normalized to the average. Each data point represents the subsequent 4 hour count (approximately 25 million events/4 hours live time) • Plotted along with the x-ray data to show timing of the flare event

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