| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | #pragma once | ||
| 2 | |||
| 3 | #include "iguana/algorithms/Algorithm.h" | ||
| 4 | |||
| 5 | namespace iguana::physics { | ||
| 6 | |||
| 7 | /// @brief_algo Calculate depolarization factors | ||
| 8 | /// | ||
| 9 | /// @par References | ||
| 10 | /// - https://arxiv.org/pdf/hep-ph/0611265 | ||
| 11 | /// - https://arxiv.org/pdf/1408.5721 | ||
| 12 | /// | ||
| 13 | /// @begin_doc_algo{physics::Depolarization | Creator} | ||
| 14 | /// @input_banks{%physics::InclusiveKinematics} | ||
| 15 | /// @output_banks{%physics::Depolarization} | ||
| 16 | /// @end_doc | ||
| 17 | /// | ||
| 18 | /// @creator_note | ||
| 19 | class Depolarization : public Algorithm | ||
| 20 | { | ||
| 21 | |||
| 22 |
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2016 | DEFINE_IGUANA_ALGORITHM(Depolarization, physics::Depolarization) |
| 23 | |||
| 24 | public: | ||
| 25 | |||
| 26 | void Start(hipo::banklist& banks) override; | ||
| 27 | void Run(hipo::banklist& banks) const override; | ||
| 28 | void Stop() override; | ||
| 29 | |||
| 30 | /// @action_function{scalar creator} compute depolarization factors | ||
| 31 | /// @param Q2 @latex{Q^2}, from `iguana::physics::InclusiveKinematics` | ||
| 32 | /// @param x Bjorken-@latex{x}, from `iguana::physics::InclusiveKinematics` | ||
| 33 | /// @param y @latex{y}, from `iguana::physics::InclusiveKinematics` | ||
| 34 | /// @param targetM the target mass (likely the proton mass) | ||
| 35 | /// @returns the depolarization factors in a `iguana::physics::DepolarizationVars` instance | ||
| 36 | DepolarizationVars Compute(double const Q2, double const x, double const y, double const targetM) const; | ||
| 37 | |||
| 38 | private: | ||
| 39 | |||
| 40 | // banklist indices | ||
| 41 | hipo::banklist::size_type b_inc_kin; | ||
| 42 | hipo::banklist::size_type b_result; | ||
| 43 | |||
| 44 | // `b_result` bank item indices | ||
| 45 | int i_epsilon; | ||
| 46 | int i_A; | ||
| 47 | int i_B; | ||
| 48 | int i_C; | ||
| 49 | int i_V; | ||
| 50 | int i_W; | ||
| 51 | |||
| 52 | }; | ||
| 53 | |||
| 54 | } | ||
| 55 |