$\require{cancel}$ Secondary Block A, describing $s_{1234} \to ( s_{123} \to s_{12}(\to \cancel{p_1} + p_2) + p_3 ) + p_4$ More...

Detailed Description

$\require{cancel}$ Secondary Block A, describing $s_{1234} \to ( s_{123} \to s_{12}(\to \cancel{p_1} + p_2) + p_3 ) + p_4$

This Secondary Block reconstructs $p_1$ using:

$p_1$ 's mass
$p_2$ , $p_3$ and $p_4$
$s_{12}$ , $s_{123}$ and $s_{1234}$

by solving these equations, for which there are up to two solutions:

$s_{12} = (p_1 + p_2)^2$
$s_{123} = (p_1 + p_2 + p_3)^2$
$s_{1234} = (p_1 + p_2 + p_3 + p_4)^2$
$p_1^2 = m_1^2$

The standard phase-space parametrization associated with this block reads: $\frac{d^3 p_1}{(2\pi)^3 2E_1}$ . The procedure implies a change of variable leading to the following phase-space parametrization: $\frac{1}{(2\pi)^3 2 E_1} ds_{12} ds_{123} ds_{1234} \times J$ (where $J$ is the jacobian associated with the transformation).

Integration dimension

This module requires 0 phase-space point.

Global parameters

Name	Type	Description
`energy`	double	Collision energy.

Parameters

Name	Type	Description
`m1`	double, default 0	Mass of the invisible particle $p_1$ .

Inputs

Name	Type	Description
`s12` `s123` `s1234`	double	Squared invariant mass of the propagators (GeV $^2$ ).
`p2` `p3` `p4`	LorentzVector	LorentzVector of the decay products used to reconstruct $p_1$ (see above description).

Outputs

Name	Type	Description
`solutions`	vector(Solution)	Solutions of the above equations. Each solution embed the parton level LorentzVector of $p_1$ and the jacobian associated with the change of variable.

Note: This block has not yet been validated. Use at your own risk.

See also: Looper module to loop over the solutions of this Block

Definition at line 79 of file SecondaryBlockA.cc.

Inheritance diagram for SecondaryBlockA:

[legend]

Public Member Functions
	SecondaryBlockA (PoolPtr pool, const ParameterSet &parameters)

virtual Status	work () override
	Main function. More...

Public Member Functions inherited from Module
	Module (PoolPtr pool, const std::string &name)
	Constructor. More...

virtual void	configure ()
	Called once at the beginning of the job.

virtual void	beginIntegration ()
	Called once at the beginning of the integration.

virtual void	beginPoint ()
	Called once when a new PS point is started. More...

virtual void	beginLoop ()
	Called once at the beginning of a loop. More...

virtual void	endLoop ()
	Called once at the end of a loop. More...

virtual void	endPoint ()
	Called once when a PS point is finished. More...

virtual void	endIntegration ()
	Called once at the end of the integration.

virtual void	finish ()
	Called once at the end of the job.

virtual std::string	name () const final

Additional Inherited Members
Public Types inherited from Module
enum	Status : std::int8_t { OK, NEXT, ABORT }

Static Public Member Functions inherited from Module
static std::string	statusToString (const Status &status)

static bool	is_virtual_module (const std::string &name)
	Test if a given name correspond to a virtual module. More...

Protected Member Functions inherited from Module
template<typename T , typename... Args>
std::shared_ptr< T >	produce (const std::string &name, Args... args)
	Add a new output to the module. More...

template<typename T >
Value< T >	get (const std::string &module, const std::string &name)

template<typename T >
Value< T >	get (const InputTag &tag)

Protected Attributes inherited from Module
PoolPtr	m_pool

Member Function Documentation

◆ work()

virtual Status SecondaryBlockA::work ( )

inlineoverridevirtual

Main function.

This method is called for each integration step. The module's logic and work happen here.

You'll usually want to override this function if you want your module to perform some task.

Reimplemented from Module.

Definition at line 95 of file SecondaryBlockA.cc.

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

modules/SecondaryBlockA.cc

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