JOscParameters.hh

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#ifndef __JOSCPROB__JOSCPARAMETERS__
#define __JOSCPROB__JOSCPARAMETERS__

#include "Jeep/JProperties.hh"

#include "JLang/JClonable.hh"
#include "JLang/JException.hh"
#include "JLang/JStringStream.hh"
#include "JLang/JObjectStreamIO.hh"

#include "JTools/JGrid.hh"

#include "JOscProb/JMixingAngle.hh"
#include "JOscProb/JComplexPhase.hh"
#include "JOscProb/JMassSquaredDifference.hh"
#include "JOscProb/JOscParametersInterface.hh"


/**
 * \author bjung, mdejong
 */

namespace JOSCPROB {}
namespace JPP { using namespace JOSCPROB; }

namespace JOSCPROB {
  
  using JLANG::JClonable;
  using JLANG::JParameter;
  using JLANG::JObjectStreamIO;

  using JTOOLS::JGrid;


  //
  // Names of standard oscillation parameters
  //
  static constexpr const char* const dM21sq()  { return "dM21sq"; }
  static constexpr const char* const dM31sq()  { return "dM31sq"; }
  static constexpr const char* const deltaCP() { return "deltaCP"; }
  static constexpr const char* const theta12() { return "theta12"; }
  static constexpr const char* const theta13() { return "theta13"; }
  static constexpr const char* const theta23() { return "theta23"; }  
  

  /**
   * Data structure for single set of oscillation parameters.
   */
  template<class T = double>
  class JOscParameters :
    public JClonable<JOscParametersInterface<T>, JOscParameters<T> >,
    public JObjectStreamIO<                      JOscParameters<T> >
  {
  public:
    
    typedef JOscParametersInterface<T>                           JOscParametersInterface_t;
    typedef JOscParameters<T>                                    JOscParameters_t;
    
    typedef typename JOscParametersInterface_t::JOscParameter_t  JOscParameter_t;
    typedef typename JOscParametersInterface_t::JParameter_t     JParameter_t;
    typedef typename JOscParametersInterface_t::argument_type    argument_type;


    /**
     * Default constructor.
     */
    JOscParameters() :
      dM21sq (),
      dM31sq (),
      deltaCP(),
      theta12(),
      theta13(),
      theta23()
    {}


    /**
     * Constructor.
     *
     * \param  dM21sq          Squared mass difference between the first and second neutrino mass eigenstates    [eV2]
     * \param  dM31sq          Squared mass difference between the first and third neutrino mass eigenstates     [eV2]
     * \param  deltaCP         PMNS complex phase                                                                [rad]
     * \param  theta12         PMNS mixing angle between the first and second neutrino mass eigenstates          [rad]
     * \param  theta13         PMNS mixing angle between the first and third neutrino mass eigenstates           [rad]
     * \param  theta23         PMNS mixing angle between the second and third neutrino mass eigenstates          [rad]
     */
    JOscParameters(const JMassSquaredDifference<T>& dM21sq,
                   const JMassSquaredDifference<T>& dM31sq,
                   const JComplexPhase<T>&          deltaCP,
                   const JMixingAngle<T>&           theta12,
                   const JMixingAngle<T>&           theta13,
                   const JMixingAngle<T>&           theta23) :
      dM21sq (dM21sq),
      dM31sq (dM31sq),
      deltaCP(deltaCP),
      theta12(theta12),
      theta13(theta13),
      theta23(theta23)
    {}


    /**
     * Constructor.
     *
     * \param  dM21sq          Squared mass difference between the first and second neutrino mass eigenstates    [eV2]
     * \param  dM31sq          Squared mass difference between the first and third neutrino mass eigenstates     [eV2]
     * \param  deltaCP         PMNS complex phase                                                                [rad]
     * \param  theta12         PMNS mixing angle between the first and second neutrino mass eigenstates          [rad]
     * \param  theta13         PMNS mixing angle between the first and third neutrino mass eigenstates           [rad]
     * \param  theta23         PMNS mixing angle between the second and third neutrino mass eigenstates          [rad]
     */
    explicit JOscParameters(argument_type dM21sq,
                            argument_type dM31sq,
                            argument_type deltaCP,
                            argument_type theta12,
                            argument_type theta13,
                            argument_type theta23) :
      dM21sq (dM21sq),
      dM31sq (dM31sq),
      deltaCP(deltaCP),
      theta12(theta12),
      theta13(theta13),
      theta23(theta23)
    {}


    /**
     * Constructor.
     * 
     * \param  name            parameter name
     * \param  value           parameter value
     * \param  args            remaining pairs of parameter names and values
     */
    template<class ...Args>
    JOscParameters(const std::string& name,
                   argument_type      value,
                   const Args&     ...args)
    {
      this->set(name, value, args...);
    }
    
    
    /**
     * Constructor.
     * 
     * Values taken from the NuFIT 5.0 three-flavour global analysis best fit values reported in:\n
     * https://link.springer.com/article/10.1007/JHEP09(2020)178
     * including the Super-Kamiokande atmospheric data.
     *
     * \param  useIO           toggle inverted ordering
     */
    JOscParameters(const bool useIO) :
      JOscParameters( JMassSquaredDifference<T>::make_parameter(          7.42e-5                       ),
                      JMassSquaredDifference<T>::make_parameter( useIO ? -2.498e-3 + 7.42e-5 : 2.517e-3 ),
                      JComplexPhase<T>::make_parameter         ( useIO ?  4.92               : 3.44     ),
                      JMixingAngle<T>::make_parameter          ( useIO ?  0.5838             : 0.5836   ),
                      JMixingAngle<T>::make_parameter          (          0.150                         ),
                      JMixingAngle<T>::make_parameter          ( useIO ?  0.860              : 0.859    ) )
    {}


    /**
     * Get properties of this class.
     *
     * \param  equation        equation parameters
     */
    virtual JProperties getProperties(const JEquationParameters& equation = JOscParametersInterface_t::getEquationParameters()) override
    {
      return JOscParametersHelper(*this, equation);
    }


    /**
     * Get properties of this class.
     *
     * \param  equation        equation parameters
     */
    virtual JProperties getProperties(const JEquationParameters& equation = JOscParametersInterface_t::getEquationParameters()) const override
    {
      return JOscParametersHelper(*this, equation);
    }
    
    
    JMassSquaredDifference<T> dM21sq;   //!< Squared mass difference between the first and second neutrino mass eigenstates [eV2]
    JMassSquaredDifference<T> dM31sq;   //!< Squared mass difference between the first and third neutrino mass eigenstates  [eV2]
    JComplexPhase<T>          deltaCP;  //!< PMNS phase angle                                                               [rad]
    JMixingAngle<T>           theta12;  //!< PMNS mixing angle between the first and second neutrino mass eigenstates       [rad]
    JMixingAngle<T>           theta13;  //!< PMNS mixing angle between the first and third neutrino mass eigenstates        [rad]
    JMixingAngle<T>           theta23;  //!< PMNS mixing angle between the second and third neutrino mass eigenstates       [rad]

    
  private:
    
    /**
     * Auxiliary class for I/O of oscillation parameters.
     */
    struct JOscParametersHelper :
      public JProperties
    {
      /**
       * Constructor.
       *
       * \param  parameters    oscillation parameters
       * \param  equation      equation    parameters 
       */
      JOscParametersHelper(JOscParameters_t&          parameters,
                           const JEquationParameters& equation) :
        JProperties(equation, 1)
      {
        this->put(JOSCPROB::dM21sq(),  static_cast<JOscParameter_t&>(parameters.dM21sq));
        this->put(JOSCPROB::dM31sq(),  static_cast<JOscParameter_t&>(parameters.dM31sq));
        this->put(JOSCPROB::deltaCP(), static_cast<JOscParameter_t&>(parameters.deltaCP));
        this->put(JOSCPROB::theta12(), static_cast<JOscParameter_t&>(parameters.theta12));
        this->put(JOSCPROB::theta13(), static_cast<JOscParameter_t&>(parameters.theta13));
        this->put(JOSCPROB::theta23(), static_cast<JOscParameter_t&>(parameters.theta23));
      }


      /**
       * Constructor.
       *
       * \param  parameters    oscillation parameters
       * \param  equation      equation    parameters 
       */
      JOscParametersHelper(const JOscParameters_t&    parameters,
                           const JEquationParameters& equation) :
        JProperties(equation, 1)
      {
        this->put(JOSCPROB::dM21sq(),  static_cast<const JOscParameter_t&>(parameters.dM21sq));
        this->put(JOSCPROB::dM31sq(),  static_cast<const JOscParameter_t&>(parameters.dM31sq));
        this->put(JOSCPROB::deltaCP(), static_cast<const JOscParameter_t&>(parameters.deltaCP));
        this->put(JOSCPROB::theta12(), static_cast<const JOscParameter_t&>(parameters.theta12));
        this->put(JOSCPROB::theta13(), static_cast<const JOscParameter_t&>(parameters.theta13));
        this->put(JOSCPROB::theta23(), static_cast<const JOscParameter_t&>(parameters.theta23));
      }
    };
  };
}

#endif