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diff --git a/include/HEJ/config.hh b/include/HEJ/config.hh
index f6a34e2..0655088 100644
--- a/include/HEJ/config.hh
+++ b/include/HEJ/config.hh
@@ -1,193 +1,198 @@
/** \file
* \brief HEJ 2 configuration parameters
*
* \authors The HEJ collaboration (see AUTHORS for details)
* \date 2019
* \copyright GPLv2 or later
*/
#pragma once
#include <string>
#include "fastjet/JetDefinition.hh"
#include "yaml-cpp/yaml.h"
#include "HEJ/Constants.hh"
#include "HEJ/event_types.hh"
#include "HEJ/EWConstants.hh"
#include "HEJ/HiggsCouplingSettings.hh"
#include "HEJ/optional.hh"
#include "HEJ/output_formats.hh"
#include "HEJ/ScaleFunction.hh"
namespace HEJ{
//! Jet parameters
struct JetParameters{
fastjet::JetDefinition def; /**< Jet Definition */
double min_pt; /**< Minimum Jet Transverse Momentum */
};
//! Settings for scale variation
struct ScaleConfig{
//! Base scale choices
std::vector<ScaleFunction> base;
//! Factors for multiplicative scale variation
std::vector<double> factors;
//! Maximum ratio between renormalisation and factorisation scale
double max_ratio;
};
//! Settings for random number generator
struct RNGConfig {
//! Random number generator name
std::string name;
//! Optional initial seed
optional<std::string> seed;
};
/**! Possible treatments for fixed-order input events.
*
* The program will decide on how to treat an event based on
* the value of this enumeration.
*/
enum class EventTreatment{
reweight, /**< Perform resummation */
keep, /**< Keep the event */
discard, /**< Discard the event */
};
//! Container to store the treatments for various event types
using EventTreatMap = std::map<event_type::EventType, EventTreatment>;
/**! Input parameters.
*
* This struct handles stores all configuration parameters
* needed in a HEJ 2 run.
*
* \internal To add a new option:
* 1. Add a member to the Config struct.
* 2. Inside "src/YAMLreader.cc":
* - Add the option name to the "supported" Node in
* get_supported_options.
* - Initialise the new Config member in to_Config.
* The functions set_from_yaml (for mandatory options) and
* set_from_yaml_if_defined (non-mandatory) may be helpful.
* 3. Add a new entry (with short description) to config.yaml
* 4. Update the user documentation in "doc/Sphinx/"
*/
struct Config {
//! Parameters for scale variation
ScaleConfig scales;
//! Resummation jet properties
JetParameters resummation_jets;
//! Fixed-order jet properties
JetParameters fixed_order_jets;
//! Minimum transverse momentum for extremal partons
double min_extparton_pt;
//! Maximum transverse momentum fraction from soft radiation in extremal jets
double max_ext_soft_pt_fraction;
//! The regulator lambda for the subtraction terms
double regulator_lambda = CLAMBDA;
//! Number of resummation configurations to generate per fixed-order event
int trials;
//! Whether to include the logarithmic correction from \f$\alpha_s\f$ running
bool log_correction;
//! Event output files names and formats
std::vector<OutputFile> output;
//! Parameters for random number generation
RNGConfig rng;
//! Map to decide what to do for different event types
EventTreatMap treat;
//! Parameters for custom analyses
YAML::Node analysis_parameters;
//! Settings for effective Higgs-gluon coupling
HiggsCouplingSettings Higgs_coupling;
//! elector weak parameters
EWConstants ew_parameters;
};
//! Configuration options for the PhaseSpacePoint class
struct PhaseSpacePointConfig {
//! Properties of resummation jets
JetParameters jet_param;
//! Minimum transverse momentum for extremal partons
double min_extparton_pt;
//! Maximum transverse momentum fraction from soft radiation in extremal jets
double max_ext_soft_pt_fraction;
};
//! Configuration options for the MatrixElement class
struct MatrixElementConfig {
MatrixElementConfig() = default;
MatrixElementConfig(
bool log_correction,
HiggsCouplingSettings Higgs_coupling,
+ EWConstants ew_parameters,
double regulator_lambda = CLAMBDA
):
- log_correction(log_correction),
- Higgs_coupling(Higgs_coupling),
- regulator_lambda(regulator_lambda)
+ log_correction{log_correction},
+ Higgs_coupling{Higgs_coupling},
+ ew_parameters{ew_parameters},
+ regulator_lambda{regulator_lambda}
{}
//! Whether to include the logarithmic correction from \f$\alpha_s\f$ running
bool log_correction;
//! Settings for effective Higgs-gluon coupling
HiggsCouplingSettings Higgs_coupling;
+ //! elector weak parameters
+ EWConstants ew_parameters;
//! The regulator lambda for the subtraction terms
double regulator_lambda = CLAMBDA;
};
//! Configuration options for the EventReweighter class
struct EventReweighterConfig {
//! Settings for phase space point generation
PhaseSpacePointConfig psp_config;
//! Settings for matrix element calculation
MatrixElementConfig ME_config;
//! Properties of resummation jets
JetParameters jet_param;
//! Treatment of the various event types
EventTreatMap treat;
};
/**! Extract PhaseSpacePointConfig from Config
*
* \internal We do not provide a PhaseSpacePointConfig constructor from Config
* so that PhaseSpacePointConfig remains an aggregate.
* This faciliates writing client code (e.g. the HEJ fixed-order generator)
* that creates a PhaseSpacePointConfig *without* a Config object.
*
* @see to_MatrixElementConfig, to_EventReweighterConfig
*/
inline
PhaseSpacePointConfig to_PhaseSpacePointConfig(Config const & conf) {
return {
conf.resummation_jets,
conf.min_extparton_pt,
conf.max_ext_soft_pt_fraction
};
}
/**! Extract MatrixElementConfig from Config
*
* @see to_PhaseSpacePointConfig, to_EventReweighterConfig
*/
inline
MatrixElementConfig to_MatrixElementConfig(Config const & conf) {
- return {conf.log_correction, conf.Higgs_coupling, conf.regulator_lambda};
+ return {conf.log_correction, conf.Higgs_coupling,
+ conf.ew_parameters, conf.regulator_lambda};
}
/**! Extract EventReweighterConfig from Config
*
* @see to_PhaseSpacePointConfig, to_MatrixElementConfig
*/
inline
EventReweighterConfig to_EventReweighterConfig(Config const & conf) {
return {
to_PhaseSpacePointConfig(conf),
to_MatrixElementConfig(conf),
conf.resummation_jets, conf.treat
};
}
} // namespace HEJ

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