dilks's blog

Two data sets are shown below; one for the more-isolated π⁰s (100mr isolation cone size) and the second is for the more inclusive π⁰s (35mr isolation).
For both of these isolation cuts, asymmetries for three event classes are shown, with the event selection for each class defined as follows:

Single γ Cuts
- Photon multiplicity -- N_γ == 1
π⁰ Cuts
- Photon multiplicity -- N_γ == 2
- Triger mask -- TrigBits & 0x200 == 1 (n.b. 0x200~jet1; 0x400~jet2)
- Energy sharing -- Z < 0.8
- Mass Cut -- | M₁₂-0.135 | < 0.1
- Not kicked from rellum analysis -- kicked == 0
3 or more Photons Cuts
- Photon multiplicity -- N_γ > 2

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Kinematic Binning

One φ bin, i.e., integrate over all φ
Pseudorapidity range -- 2.5 <= η < 4.0
Energy bound -- E < 100 GeV
Transverse momentum bound -- p_T < 15 GeV
- p_T binning:
  - [0,1)
  - [1,2)
  - [2,3)
  - [3,4)
  - [4,6)
  - [6,8)
  - [8,15)

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Distributions of events in terms of kinematic quantities

Run12 35mr isolation Run12 100mr isolation
Run13 35mr isolation Run13 100mr isolation

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Legend

For both the 100mr and 35mr data sets, there are five 3x3 blocks of images, organized as follows:

A_L yellow beam vs. p_T (yellow points) for run12, 13, and combined ("merged")
A_L blue beam vs. p_T (blue points) for run12, 13, and merged
A_LL vs. p_T (magenta points) for run12, 13, and merged
Difference of nominal asymmetries between run12 and run13; error bars added in quadrature
Ratio of statical error bars for run12/run13 -- useful for comparing how much data in each kinematic bin

For each 3x3 block, the rows are (from top to bottom)

Single photon data
π⁰ data
3 or more photons

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o-----------------------------------------------------[100mr ISOLATION CONE]-----------------------------------------------------o

- - - - - A_L yellow beam vs. p_T- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - A_L blue beam vs. p_T- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - A_LL vs. p_T- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - Difference of nominal asymmetries between run12 and run13 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - -

- - - - - Ratio of statical error bars for run12/run13 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - -

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