\(\require{cancel}\) 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.
Public Member Functions | |
| SecondaryBlockA (PoolPtr pool, const ParameterSet ¶meters) | |
| 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()
|
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
