PMGTools Namespace Reference

Tool providing sample cross-sections and k-factors etc. More...

Classes
struct	AllSampleInfo
class	IPMGCrossSectionTool
class	IPMGSherpaVjetsSysTool
class	IPMGTruthWeightTool
	Interface for xAOD Truth Weight Tool which retrieves Meta Data from a truth record to interface the event weights. More...
class	ISysTruthWeightTool
	Interface for xAOD Truth Weight Tool which returns an event weight based on truth particle container. More...
class	PMGCrossSectionTool
class	PMGDecayProductsSelectionTool
	an IAsgSelectionTool that select particles based on the allowed decay chain More...
class	PMGHFProductionFractionTool
	Implementation for xAOD Truth Weight Tool which retrieves the charm / bottom hadron content of an event and derives an event weight based on the HF production fractions. More...
class	PMGSherpa22VJetsWeightTool
class	PMGSherpaVjetsSysTool
class	PMGTruthWeightTool
	Implementation for the xAOD truth meta data weight tool. More...

Enumerations
enum	SysParType {   None = 0 , Znunu , Zll , Wlnu ,   GammaJets , None = 0 , Znunu , Zll ,   Wlnu , GammaJets }
enum	SysParType {   None = 0 , Znunu , Zll , Wlnu ,   GammaJets , None = 0 , Znunu , Zll ,   Wlnu , GammaJets }

Functions
std::string	weightNameCleanup (const std::string &name)
	cleanup the weight name
std::string	weightNameWithPrefix (const std::string &name)
	cleanup the weight name and add prefix

Variables
constexpr char	generatorWeightsPrefix [] {"GEN_"}
	the prefix for generator weights

Detailed Description

Tool providing sample cross-sections and k-factors etc.

Tool calculating correct event weights for Sherpa V+jets samples.

Author

Tadej Novak

Longer documentation to be written...

Author

Paul Thompson Paul..nosp@m.Thom.nosp@m.pson@.nosp@m.cern.nosp@m..ch

Revision

764400

Date

2016-07-26 19:47:39 +0200 (Tue, 26 Jul 2016)

Enumeration Type Documentation

SysParType [1/2]

enum PMGTools::SysParType

Enumerator
None
Znunu
Zll
Wlnu
GammaJets
None
Znunu
Zll
Wlnu
GammaJets

Definition at line 19 of file AnalysisCommon/PMGTools/PMGTools/IPMGSherpaVjetsSysTool.h.

                  {
    None = 0,
    Znunu,
    Zll,
    Wlnu,
    GammaJets
  };

SysParType [2/2]

enum PMGTools::SysParType

Enumerator
None
Znunu
Zll
Wlnu
GammaJets
None
Znunu
Zll
Wlnu
GammaJets

Definition at line 19 of file Interfaces/PMGAnalysisInterfaces/PMGAnalysisInterfaces/IPMGSherpaVjetsSysTool.h.

                  {
    None = 0,
    Znunu,
    Zll,
    Wlnu,
    GammaJets
  };

Function Documentation

weightNameCleanup()

std::string PMGTools::weightNameCleanup

(

const std::string &

name

)

cleanup the weight name

Definition at line 18 of file WeightHelpers.cxx.

{
  // empty weight is nominal
  if (name.empty())
  {
    return {};
  }
 
  // Trim trailing whitespace
  size_t start = name.find_first_not_of(" \t\n\r");
  size_t end = name.find_last_not_of(" \t\n\r");
  std::string out = name.substr(start,end-start+1);  
  std::string outLowercase = out;
  std::transform(outLowercase.begin(), outLowercase.end(), outLowercase.begin(),
    [](unsigned char c){ return std::tolower(c); });
 
  // more cases of nominal weights
  if (outLowercase == "default" // This is a primary weight in newer samples
    || outLowercase == "nominal" // Powheg calls it "nominal"
    || outLowercase == "weight" // Sherpa names the nominal weight just "Weight"
    || outLowercase == "0")
  {
    return {};
  }
 
  static const std::vector<std::pair<std::string, std::string>> substitutions =
  {
    {" set = ", "_"}, // Powheg
    {" = ", "_"}, // Powheg
    {"+", "plus"},
    {"-", "minus"},
    {"=", ""},
    {",", ""},
    {".", ""},
    {":", ""},
    {" ", "_"},
    {"#", "num"},
    {"\n", "_"},
    {"/", "over"}, // MadGraph
  };
 
  for (const auto &[before, after] : substitutions)
  {
    size_t location = out.find(before);
    while (location != std::string::npos)
    {
      out.replace(location, before.length(), after);
      location = out.find(before);
    }
  }
 
  return out;
}

weightNameWithPrefix()

std::string PMGTools::weightNameWithPrefix

(

const std::string &

name

)

cleanup the weight name and add prefix

Definition at line 72 of file WeightHelpers.cxx.

{
  std::string out = weightNameCleanup(name);
  if (out.empty())
  {
    return out;
  }
 
  return generatorWeightsPrefix + out;
}

Variable Documentation

generatorWeightsPrefix

char PMGTools::generatorWeightsPrefix[] {"GEN_"}

constexpr

the prefix for generator weights

Definition at line 19 of file WeightHelpers.h.

{"GEN_"};