ap-utilities 0.2.8

Utilities needed for analysis productions in LHCb

ap_utilities

• For instructions on how to install this project, check this
• For documentation specific to MVA lines of the RD group, check this
• For tools to deal with nicknames check this
• For instructions to mount EOS in your laptop check this
• For instructions on how to make the decay descriptor fields check this

How to add a decay

Add the decay matching lines

This is done in rd_ap_2024/tupling/config/mcfuntuple.yaml. Each section in this file looks like:

# This is a nickname for the sample
Bd_Denu_Kstenu_eq_VisibleInAcceptance_HighVisMass_EGDWC:
# This is the decay descriptor and how to match particles to branch names
  Bd   : '[B0  ==>   (  D-  ==>   (  K*(892)0  ==>  K+  pi-  )   e-  anti-nu_e  )   e+  nu_e  ]CC'
  D    : '[B0  ==>  ^(  D-  ==>   (  K*(892)0  ==>  K+  pi-  )   e-  anti-nu_e  )   e+  nu_e  ]CC'
  Em   : '[B0  ==>   (  D-  ==>   (  K*(892)0  ==>  K+  pi-  )  ^e-  anti-nu_e  )   e+  nu_e  ]CC'
  Ep   : '[B0  ==>   (  D-  ==>   (  K*(892)0  ==>  K+  pi-  )   e-  anti-nu_e  )  ^e+  nu_e  ]CC'
  Kp   : '[B0  ==>   (  D-  ==>   (  K*(892)0  ==> ^K+  pi-  )   e-  anti-nu_e  )   e+  nu_e  ]CC'
  Kst  : '[B0  ==>   (  D-  ==>  ^(  K*(892)0  ==>  K+  pi-  )   e-  anti-nu_e  )   e+  nu_e  ]CC'
  nu   : '[B0  ==>   (  D-  ==>   (  K*(892)0  ==>  K+  pi-  )   e-  anti-nu_e  )   e+ ^nu_e  ]CC'
  pim  : '[B0  ==>   (  D-  ==>   (  K*(892)0  ==>  K+ ^pi-  )   e-  anti-nu_e  )   e+  nu_e  ]CC'

• To get the sample nickname follow this
• To get the descriptors one can either write them down in the case of a few samples or run follow these instructions in case of multiple.

Add the list of samples

The list goes in rd_ap_2024/info.yaml. For this, the installation that allows access to DIRAC is needed. Given a set of MC samples specified in a YAML file like:

settings_common: &common
  year      : 2024
  mc_path   : 2024.W31.34
  polarity  : MagUp
  nu_path   : Nu6.3
  sim_vers  : Sim10d
  generator : Pythia8
  ctags     : sim10-2024.Q3.4-v1.3-mu100
  dtags     : dddb-20240427
# -------------------------------------------
sections:
  one:
    settings:
      <<: *common
    evt_type:
      - '11102211'
      - '11102202'
  two:
    settings:
      <<        : *common
      sim_vers  : Sim10d-SplitSim02
    evt_type:
      - '11102211'
      - '11102202'
  three:
    settings:
      <<        : *common
      generator : BcVegPyPythia8
    evt_type:
      - '14143013'
      - '14113032'

run:

check_samples -i samples.yaml -n 6

to check if the samples exist using 6 threads (default is 1). The script will produce:

• info_SECTION_NAME.yaml: Where SECTION_NAME corresponds to each section above, i.e. one, two, three
• validation_SECTION_NAME.yaml: Which will be needed for validation later.

Once this has been done, the lines needed for the info.yaml can be obtained by concatenating the partial outputs with:

cat info_*.yaml > samples.yaml

Updating tupling/config/samples.yaml

This file lists the samples together with the analyses like in:

Bc_Dsst2573mumu_KKpi_eq_BcVegPy_DPC: # This is a sample
- Bc_lines                           # This is an analysis
Bc_Jpsipi_mm_eq_WeightedBcVegPy_DPC:
- Bc_lines
Bc_pimumu_eq_PHSP_BcVegPy_DPC:
- Bc_lines

Where the analyses are sets of HLT2 lines described in tupling/config/analyses.yaml.

Checks

Before pipelines

In order to do these checks run:

check_production -p /home/acampove/Packages/AnalysisProductions/rd_ap_2024

Where the path is the path to the production directory. This script will check:

1. If the samples (by nickname) in info.yaml are different. Same nicknames are not expected.
2. If the entries in mcfuntuple.yaml are different.
3. If there are samples in info.yaml are not found in mcfuntuple.yaml. In which case MCDecayTree will not be made.

The second argument is a list of strings representing samples. Here they represent inclusive samples, which should be skipped; this argument is optional.

This script will produce report.yaml, which looks like:

# Print nicknames of samples going above 100 characters
long_nicknames: ['105', 'some_long_sample_name']
missing:
  info.yaml_mcfuntuple.yaml:
    only info.yaml:
      - Bd_KstPi0gamma_Kpi_eq_DPC_SS
      - Bd_Ksteta_gg_eq_DPC_SS
    only mcfuntuple.yaml:
      - Bd_KplKmn_eq_DPC
      - Bd_Kplpimn_eq_CPV2017_DPC
  info.yaml_samples.yaml:
    only info.yaml:
      - Bd_Denu_Kstenu_eq_VIA_HVM_EGDWC
      - Bd_Dmunu_Kstmunu_eq_DPC
    only samples.yaml:
      - Bd_KplKmn_eq_DPC
      - Bd_Kplpimn_eq_CPV2017_DPC
  mcfuntuple.yaml_samples.yaml:
    only mcfuntuple.yaml:
      - Bd_Denu_Kstenu_eq_VIA_HVM_EGDWC
      - Bd_Dmunu_Kstmunu_eq_DPC
    only samples.yaml:
      - Dst_D0pi_KK_TightCut
      - Dst_D0pi_KPi_TightCut

After pipelines

This is done in an environment with access to EOS. To gain EOS access from outside of LXPLUS (e.g. a laptop) follow these instructions. After that do:

# This project is in pip
pip install ap_utilities

validate_ap_tuples -p PIPELINE -f ntuple_scheme.yaml -t 5

Where:
-l: Logging level, by default 20 (info), but it can be 10 (debug) or 30 (warning)
-t: Is the number of threads to use, if not passed, it will use one.
-p: Is the pipeline number, needed to find the ROOT files in EOS
-f: passes the file with the configuration

# -----------------------------------------
# Needed to find where files are in EOS
# -----------------------------------------
paths:
  pipeline_dir : /eos/lhcb/wg/dpa/wp2/ci
  analysis_dir : rd_ap_2024
# -----------------------------------------
# Each key corresponds to a MC sample, the value is a list of lines that must be found
# as a tree in the file. If any, then the sample is not signal for any of the HLT2 lines
# therefore no tree (equivalent to a line) is required to be made
# -----------------------------------------
samples:
  # These is a sample without a dedicated trigger
  Bu_K1ee_eq_DPC:
    - any 
  # This is a sample with two triggers targetting it
  Bd_Kpiee_eq_DPC:
    - Hlt2RD_B0ToKpPimEE
    - Hlt2RD_B0ToKpPimEE_MVA

a few examples of config files can be found here