Zenith angle reconstruction resolution

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Zenith angle reconstruction resolution

• Dmitry Chirkin, LBNL

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Reconstruction using a single string
String 21
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Reconstruction with odd even DOMs
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Difference with the full string result
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Difference between simple joint reco
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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
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Odd even difference bulk ice
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Difference between simple-joint reco
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Comparison of string 21 and 39 reco
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Reconstruction using a single string
Applying a 10 meter distance cut to both strings
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Comparison of string 21 with full reco
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Comparison of string 21 with full reco
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Comparison of string 39 with full reco
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Comparison of string 38 with full reco
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Full detector layered vs. bulk ice
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Full detector layered vs. bulk ice diff
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Full detector even odd reco difference
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Full detector even odd difference
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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.