#include <Algorithm.h>

Detailed Description

Algorithm: Calculate semi-inclusive dihadron kinematic quantities defined in iguana::physics::DihadronKinematicsVars

Input and Output Banks:: See Run function(s) for the banks that are processed by this algorithm.

Type: Creator

This algorithm creates new bank(s); click here for a description of all created banks.
See also the return value type of this algorithm's action functions, which may be structs with the same set of variables as the created bank.

Configuration Options:: YAML configuration, which includes the default option values:
physics::DihadronKinematics:

# the name of the particle bank, only used for users of `hipo::banklist`;

# e.g., set it to 'MC::Particle' if you prefer

particle_bank: 'REC::Particle'

# list of hadrons used to pair dihadrons

# - each hadron from `hadron_a_list` will be paired to each hadron from `hadron_b_list`

hadron_a_list: [ 211 ]

hadron_b_list: [ -211, 211, 2212 ]

# calculation methods; see documentation and source code for details

phi_r_method: RT_via_covariant_kT

theta_method: hadron_a

Dihadron PDGs will be formed from pairs from hadron_a_list and hadron_b_list. For example, if you define:

hadron_a_list: [ 211 ]

hadron_b_list: [ -211, 2212 ]

then the algorithm will calculate kinematics for \(\pi^+\pi^-\) and \(\pi^+p\) dihadrons; hadron A is the \(\pi^+\) for both of these, whereas hadron B is the \(\pi^-\) for the former and the proton for the latter.

phiR calculation methods

"RT_via_covariant_kT": use \(R_T\) computed via covariant \(k_T\) formula

theta calculation methods

"hadron_a": use hadron A's "decay angle" in the dihadron rest frame

Definition at line 29 of file Algorithm.h.

Public Member Functions
std::vector< std::pair< int, int > >	PairHadrons (hipo::bank const &particle_bank) const
	form dihadrons by pairing hadrons
bool	Run (hipo::bank const &particle_bank, hipo::bank const &inc_kin_bank, hipo::bank &result_bank) const
	Run Function: Process an event's hipo::bank objects
Public Member Functions inherited from iguana::Algorithm
	Algorithm (std::string_view name)
hipo::banklist::size_type	GetBankIndex (hipo::banklist &banks, std::string const &bank_name) const noexcept(false)
std::unique_ptr< YAMLReader > const &	GetConfig () const
hipo::bank	GetCreatedBank (std::string const &bank_name="") const noexcept(false)
hipo::banklist::size_type	GetCreatedBankIndex (hipo::banklist &banks) const noexcept(false)
std::string	GetCreatedBankName () const noexcept(false)
std::vector< std::string >	GetCreatedBankNames () const noexcept(false)
hipo::schema	GetCreatedBankSchema (std::string const &bank_name="") const noexcept(false)
unsigned int	GetCreatedBankVariant () const
template<typename OPTION_TYPE>
OPTION_TYPE	GetOptionScalar (YAMLReader::node_path_t node_path={}) const
template<typename OPTION_TYPE>
std::set< OPTION_TYPE >	GetOptionSet (YAMLReader::node_path_t node_path={}) const
template<typename OPTION_TYPE>
std::vector< OPTION_TYPE >	GetOptionVector (YAMLReader::node_path_t node_path={}) const
std::unique_ptr< RCDBReader > &	GetRCDBReader ()
virtual bool	Run (hipo::banklist &banks) const final
	Run Function: Process an event's hipo::banklist
void	SetConfig (std::unique_ptr< YAMLReader > &&yaml_config)
void	SetConfigDirectory (std::string const &name)
void	SetConfigFile (std::string const &name)
void	SetName (std::string_view name)
template<typename OPTION_TYPE>
OPTION_TYPE	SetOption (std::string const &key, const OPTION_TYPE val)
	Set an option specified by the user.
virtual void	Start () final
	Start Function: Initialize this algorithm before any events are processed, with the intent to process either hipo::bank objects or bank rows, rather than full hipo::banklist objects
virtual void	Start (hipo::banklist &banks) final
	Start Function: Initialize this algorithm before any events are processed, with the intent to process hipo::banklist objects
virtual void	Stop () final
	Stop Function: Finalize this algorithm after all events are processed.
Public Member Functions inherited from iguana::Object
	Object (std::string_view name="", Logger::Level lev=Logger::DEFAULT_LEVEL)
std::unique_ptr< Logger > &	GetLog ()
std::string	GetName () const
std::unique_ptr< Logger > &	Log ()
void	SetLogLevel (Logger::Level const lev)
void	SetLogLevel (std::string_view lev)
void	SetName (std::string_view name)

Additional Inherited Members
Protected Member Functions inherited from iguana::Algorithm
hipo::schema	CreateBank (hipo::banklist &banks, hipo::banklist::size_type &bank_idx, std::string const &bank_name) noexcept(false)
hipo::bank &	GetBank (hipo::banklist &banks, hipo::banklist::size_type const idx, std::string const &expected_bank_name="") const noexcept(false)
void	ShowBank (hipo::bank const &bank, std::string_view message="", Logger::Level const level=Logger::trace) const
void	ShowBanks (hipo::banklist const &banks, std::string_view message="", Logger::Level const level=Logger::trace) const
void	StartRCDBReader ()
	Instantiate the RCDBReader instance for this algorithm.
void	ThrowSinceRenamed (std::string const &new_name, std::string const &version) const noexcept(false)
Protected Attributes inherited from iguana::Algorithm
std::string	m_class_name
	Class name of this algorithm.
unsigned int	m_created_bank_variant {0}
std::string	m_default_config_file
	Default configuration file name.
std::mutex	m_mutex
	A mutex for this algorithm.
std::unique_ptr< RCDBReader >	m_rcdb
	RCDB reader.
bool	m_rows_only
	If true, algorithm can only operate on bank rows; Algorithm::GetBank, and therefore Algorithm::Run, cannot be called.
std::string	o_user_config_dir
std::string	o_user_config_file
Protected Attributes inherited from iguana::Object
std::unique_ptr< Logger >	m_log
	Logger instance for this object
std::string	m_name
	The name of this object.

Inheritance diagram for iguana::physics::DihadronKinematics:

Member Function Documentation

◆ PairHadrons()

std::vector< std::pair< int, int > > iguana::physics::DihadronKinematics::PairHadrons ( hipo::bank const & particle_bank ) const

form dihadrons by pairing hadrons

Parameters

particle_bank the particle bank

Returns: a list of pairs of hadron rows

◆ Run()

bool iguana::physics::DihadronKinematics::Run	(	hipo::bank const &	particle_bank,
		hipo::bank const &	inc_kin_bank,
		hipo::bank &	result_bank ) const

Run Function: Process an event's hipo::bank objects

The parameter list explains which banks are input ("in"), output ("out"), or both ("in,out").

Parameters

[in]	particle_bank	particle bank (e.g., REC::Particle)
[in]	inc_kin_bank	physics::InclusiveKinematics, produced by the physics::InclusiveKinematics algorithm
[out]	result_bank	physics::DihadronKinematics, which will be created

Returns: false if the input banks do not have enough information, e.g., if the inclusive kinematics bank is empty, or if the created bank is empty

The documentation for this class was generated from the following file:

/__w/iguana/iguana/iguana_src/src/iguana/algorithms/physics/DihadronKinematics/Algorithm.h

Detailed Description

Public Member Functions

Additional Inherited Members

Member Function Documentation

◆ PairHadrons()

◆ Run()