Eta Intercalibration 2016

Datasets Analysed

The following text files provide full-listings of the datasets used, broken down by period

1. Period A- "Early runs"
2. Period A - "late runs"
3. Period B
4. Period C
5. Period D
6. Period E
7. Period F
8. Nominal Monte Carlo - Pythia8
9. Systematic Monte Carlo - Sherpa 2.1

A complete list of the samples used is avaliable here.

Analysis tools

The eta inter-calibration code can be found in the gitlab (previously, on svn)

Tag 00-00-0X was used for the DS3 analysis.

Calibrations

The calibrations and systematic uncertainties are avaliable below

1. Anti-kt R = 0.4 EM+JES jets:
   • Calibration ROOT file
   • Uncertaintiy Root file
   • Calibration PDF
   • Uncertainties PDF
2. Anti-kt R = 0.4 LC+JES jets:
   1. Calibration ROOT file
   2. Uncertaintiy Root file
   3. Calibration PDF
   4. Uncertainties PDF

Data Verification

Method Verification

As detiled in the supporting documents there are two methods to evaluate the eta intercalibraiton factors.

Comparisons of these methods are listed below for:

• EM+JES
• LC+JES

Full results of the the methods individual, including the martices used in the matrix method, can be found below for:

• EM+JES
• LC+JES

Closure study

The derived calibration is applied to the data set and a new calibration evaluated. Deviations from unity in the region of |eta| ~2.4 are accounted as an addiational uncertaintiy.

Plots of the closure can be found below for:

• EM+JES
• LC+JES

The included systematic can found below for:

• EM+JES
• LC+JES

Period stability study

Differences in run conditions have the potential to bias the calibraiton in unexpected ways. The relative response of the 2016 data was found for each period individually and compared below for:

• EM+JES:
  • DijetResponse_AtoF_vs_GtoI.pdf
  • Early Period A vs 2016 B to F vs 2016 A to F vs 2015
• LC+JES

Uncertainties

Evaluated using the bootstrap method

• EM+JES:
  • DijetResponse_AtoF_vs_GtoI.pdf

-- JacobHenryRawling - 2016-08-24

• data16_13TeV__Eta2016v12_AntiKt4EMTopo_AsymMM_distributions.pdf: data16_13TeV__Eta2016v12_AntiKt4EMTopo_AsymMM_distributions.pdf

• data16_13TeV__Eta2016v12_AntiKt4EMTopo_AsymSM_distributions.pdf: data16_13TeV__Eta2016v12_AntiKt4EMTopo_AsymSM_distributions.pdf