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Zenith angle reconstruction resolution

Dmitry Chirkin from LBNL presents the comparison of reconstruction using single strings, odd/even DOMs, and bulk ice in the neutrino detector. The study highlights differences between simple and joint reconstruction methods and the performance of different ice models.

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Zenith angle reconstruction resolution

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  1. Zenith angle reconstruction resolution Dmitry Chirkin, LBNL

  2. Reconstruction using a single string String 21

  3. Reconstruction with odd – even DOMs

  4. Difference with the full string result

  5. Difference between simple – joint reco

  6. Bulk ice vs. 6-parameter layered ice Full string reco performed with the 6-parameter ice model Odd/even numbered DOM set reco performed with bulk ice

  7. Compare with 4.01 and 3.50 for 6-parameter model Odd – even difference: bulk ice

  8. Compare with 0.77 and 0.72 for 6-parameter ice model Difference between simple-joint reco

  9. Comparison of string 21 and 39 reco

  10. Reconstruction using a single string Applying a 10 meter distance cut to both strings

  11. Comparison of string 21 with full reco

  12. Comparison of string 21 with full reco

  13. Comparison of string 39 with full reco

  14. Comparison of string 38 with full reco

  15. Full detector layered vs. bulk ice

  16. Full detector layered vs. bulk ice diff

  17. Full detector even – odd reco difference

  18. Full detector even – odd difference

  19. summary • single string resolution is ~7 degrees, in agreement with MC • bulk ice performs almost as well as the layered ice model • joint reconstruction is preferable over simple reconstruction • full detector angular resolution so far at ~2 degrees.

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