SUMMARY SLIDES FOR 9/22/14 FMS MEETING

This is a continuation of the previous blog entry: https://drupal.star.bnl.gov/STAR/blog/dilks/bunch-fitting-spin-pattern-correlations

Here I am again focusing on Run13 data and looking for how the spin pattern correlations observed in certain raw ZDC singles asymmetries (viz. double spin asymmetry, ε₃) depend on the selection of bXings.

I am running tests by filtering out certain sets of bXings. Again, I am focusing on the bunch fitting of ZDC singles scaler bit combos with respect to VPD coincidences.

n.b. my bXings count ranges from 0-119 (abort gaps are thus at 31-39 and 111-119)
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-----[ SPIN PATTERN COLORING ]------------------------------------------------------------
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Some tests use a 4-colour legend, where if a spin pattern has color C, it's partner, defined by the spin pattern for exchanging the blue and yellow bunch patterns, also has color C:

Other tests use an 8-color legend, where all 8 spin patterns have a unique color

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-----[ OUTLINE OF TESTS ]---------------------------------

The ordering of these tests is chronological

• TEST 1: OMIT 8 BXINGS AFTER ABORTS AND 8 BXINGS AFTER 69 & 70
• TEST 2: OMIT 8 BXINGS BEFORE ABORTS AND 8 BXINGS BEFORE 69 & 70
• TEST 3: OMIT 2 BXINGS AFTER ABORTS AND 2 BXINGS AFTER 69 & 70
  
• TEST 4: OMIT 2 BXINGS AFTER ABORTS
  
• TEST 5: OMIT 1 BXING AFTER ABORTS
  
• TEST 6: OMIT 3 BXINGS AFTER ABORTS
  
• TEST 7: OMIT 4 BXINGS AFTER ABORTS
• TEST 8: OMIT 5 BXINGS AFTER ABORTS
• TEST 9: OMIT 6 BXINGS AFTER ABORTS
• TEST 10: OMIT 7 BXINGS AFTER ABORTS
  
• TEST 11: OMIT 8 BXINGS AFTER ABORTS
• TEST 12: OMIT 9 BXINGS AFTER ABORTS

-----[ TEST 1: OMIT 8 BXINGS AFTER ABORTS AND 8 BXINGS AFTER 69 & 70 ]---------------------------------
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The set of bXings considered in the bunch fit for this test is: [8,30] ∪ [48,68] ∪ [79,110]

• The spin pattern correlation effect is decreased when we omit the first 8 bXings coming out of each abort gap as well as 8 bXings after bXings 69&70 (which were not filled during the first ~230 runs)

ZDC EAST:

ZDC WEST:

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-----[ TEST 2: OMIT 8 BXINGS BEFORE ABORTS AND 8 BXINGS BEFORE 69 & 70 ]---------------------------------
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The set of bXings considered in the bunch fit for this test is: [0,22] ∪ [40,60] ∪ [71,102]

• The spin pattern correlation effect appears to be amplified when we omit the last 8 bXings going into each abort gap as well as 8 bXings before bXings 69&70 (which were not filled during the first ~230 runs)
  

ZDC EAST:

ZDC WEST:

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-----[ TEST 3: OMIT 2 BXINGS AFTER ABORTS AND 2 BXINGS AFTER 69 & 70 ]---------------------------------
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The spin pattern correlations for the DSA are slightly reduced; however, new spin pattern correlations are introduced in the SSAs

• Using the 8-colour scheme here
• The blue SSA is slightly higher if the blue beam spin pattern starts with "-" than if the blue beam spin pattern starts with "+"
• The yellow SSA is slightly higher if the yellow beam spin pattern starts with "-" than if the yellow beam spin pattern starts with "+"

ZDC EAST:

ZDC WEST:

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-----[ TEST 4: OMIT 2 BXINGS AFTER ABORTS ]---------------------------------
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This is a repeat of test 3, but without omitting 2 bXings after 69 & 70

• Results very similar to test 3
• First 200 runs look slightly less correlated in the SSAs for this test

ZDC EAST:

ZDC WEST:

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-----[ TEST 5: OMIT 1 BXING AFTER ABORTS ]---------------------------------
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This is a repeat of test 4, but omitting only 1 bXing after each abort gap

• SSAs are not correlated with spin pattern and have less variation than test 4, where 2 bXings after each abort gap were omitted
• DSA has clear spin pattern correlation, which is worse than in test 4

ZDC EAST:

ZDC WEST:

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-----[ TEST 6: OMIT 3 BXINGS AFTER ABORTS ]---------------------------------
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This is a repeat of test 4, but omitting 3 bXings after each abort gap

• SSAs are not correlated with spin pattern
• DSA does not show any correlation with spin pattern and also shows the least amount of variation yet

ZDC EAST:

ZDC WEST:

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-----[ TEST 7: OMIT 4 BXINGS AFTER ABORTS ]---------------------------------
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This is a repeat of test 4, but omitting 4 bXings after each abort gap

• No evidence of spin pattern correlation
• Variation in SSAs and DSA are even smaller than test 6, where 3 bXings after aborts were omitted

ZDC EAST:

ZDC WEST:

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-----[ TEST 8: OMIT 5 BXINGS AFTER ABORTS ]---------------------------------
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This is a repeat of test 4, but omitting 5 bXings after each abort gap

• No evidence of spin pattern correlation
• Variation in SSAs and DSA are a bit bigger than test 7, where 4 bXings after aborts were omitted
• First ~200 runs region where bXings 69 & 70 were unfilled is starting to be enhanced

ZDC EAST:

ZDC WEST:

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-----[ TEST 9: OMIT 6 BXINGS AFTER ABORTS ]---------------------------------
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This is a repeat of test 4, but omitting 6 bXings after each abort gap

• No evidence of spin pattern correlation
• Variation in SSAs and DSA are a bit bigger than test 8, where 5 bXings after aborts were omitted
• First ~200 runs region where bXings 69 & 70 were unfilled is starting to be enhanced

ZDC EAST:

ZDC WEST:

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-----[ TEST 10: OMIT 7 BXINGS AFTER ABORTS ]---------------------------------
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This is a repeat of test 4, but omitting 7 bXings after each abort gap

• Evidence of spin pattern correlation in DSA
• Variation in SSAs and DSA are a bit bigger than test 9, where 6 bXings after aborts were omitted

ZDC EAST:

ZDC WEST:

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-----[ TEST 11: OMIT 8 BXINGS AFTER ABORTS ]---------------------------------
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This is a repeat of test 4, but omitting 8 bXings after each abort gap

• Evidence of spin pattern correlation in DSA

ZDC EAST:

ZDC WEST:

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-----[ TEST 12: OMIT 9 BXINGS AFTER ABORTS ]---------------------------------
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This is a repeat of test 4, but omitting 9 bXings after each abort gap

• Evidence of spin pattern correlation in DSA, but a bit less than test 11

ZDC EAST:

ZDC WEST: