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diff --git a/FixedOrderGen/include/PhaseSpacePoint.hh b/FixedOrderGen/include/PhaseSpacePoint.hh
index 330987d..cba056e 100644
--- a/FixedOrderGen/include/PhaseSpacePoint.hh
+++ b/FixedOrderGen/include/PhaseSpacePoint.hh
@@ -1,216 +1,216 @@
/** \file PhaseSpacePoint.hh
* \brief Contains the PhaseSpacePoint Class
*/
#pragma once
#include <bitset>
#include <vector>
#include "HEJ/utility.hh"
#include "HEJ/Event.hh"
#include "HEJ/PDG_codes.hh"
#include "HEJ/PDF.hh"
#include "HEJ/RNG.hh"
#include "Status.hh"
#include "JetParameters.hh"
#include "ParticleProperties.hh"
namespace HEJFOG{
class Process;
using HEJ::Particle;
//! A point in resummation phase space
class PhaseSpacePoint{
public:
//! Default PhaseSpacePoint Constructor
PhaseSpacePoint() = default;
//! PhaseSpacePoint Constructor
/**
* @param proc The process to generate
* @param jet_properties Jet defintion & cuts
* @param pdf The pdf set (used for sampling)
* @param E_beam Energie of the beam
* @param subl_chance Chance to turn a potentially unordered
* emission into an actual one
* @param subl_channels Possible subleading channels.
* see HEJFOG::Subleading
* @param particle_properties Properties of producted boson
*
* Initially, only FKL phase space points are generated. subl_chance gives
* the change of turning one emissions into a subleading configuration,
* i.e. either unordered or central quark/anti-quark pair. Unordered
* emissions require that the most extremal emission in any direction is
* a quark or anti-quark and the next emission is a gluon. Quark/anti-quark
* pairs are only generated for W processes. At most one subleading
* emission will be generated in this way.
*/
PhaseSpacePoint(
Process const & proc,
JetParameters const & jet_properties,
HEJ::PDF & pdf, double E_beam,
double subl_chance,
unsigned int subl_channels,
ParticlesPropMap const & particles_properties,
HEJ::RNG & ran
);
//! Get Weight Function
/**
* @returns Weight of Event
*/
double weight() const{
return weight_;
}
Status status() const{
return status_;
}
//! Get Incoming Function
/**
* @returns Incoming Particles
*/
std::array<Particle, 2> const & incoming() const{
return incoming_;
}
//! Get Outgoing Function
/**
* @returns Outgoing Particles
*/
std::vector<Particle> const & outgoing() const{
return outgoing_;
}
std::unordered_map<size_t, std::vector<Particle>> const & decays() const{
return decays_;
}
private:
/**
- * \internal
- * \brief Generate LO parton momentum
+ * @internal
+ * @brief Generate LO parton momentum
*
* @param count Number of partons to generate
* @param is_pure_jets If true ensures momentum conservation in x and y
* @param jet_param Jet properties to fulfil
* @param max_pt max allowed pt for a parton (typically E_CMS)
* @param ran Random Number Generator
*
* @returns Momentum of partons
*
* Ensures that each parton is in its own jet.
* Generation is independent of parton flavour. Output is sorted in rapidity.
*/
std::vector<fastjet::PseudoJet> gen_LO_partons(
int count, bool is_pure_jets,
JetParameters const & jet_param,
double max_pt,
HEJ::RNG & ran
);
Particle gen_boson(
HEJ::ParticleID bosonid, double mass, double width,
HEJ::RNG & ran
);
template<class ParticleMomenta>
fastjet::PseudoJet gen_last_momentum(
ParticleMomenta const & other_momenta,
double mass_square, double y
) const;
bool jets_ok(
std::vector<fastjet::PseudoJet> const & Born_jets,
std::vector<fastjet::PseudoJet> const & partons
) const;
/**
- * \internal
- * \brief Generate incoming partons according to the PDF
+ * @internal
+ * @brief Generate incoming partons according to the PDF
*
* @param uf Scale used in the PDF
*/
void reconstruct_incoming(
Process const & proc, unsigned int subl_channels,
HEJ::PDF & pdf, double E_beam,
double uf,
HEJ::RNG & ran
);
/**
* @internal
* @brief Returns list of all allowed initial states partons
*/
std::array<std::bitset<11>,2> filter_partons(
Process const & proc, unsigned int const subl_channels,
HEJ::RNG & ran
);
HEJ::ParticleID generate_incoming_id(
size_t beam_idx, double x, double uf, HEJ::PDF & pdf,
std::bitset<11> allowed_partons, HEJ::RNG & ran
);
bool momentum_conserved(double ep) const;
HEJ::Particle const & most_backward_FKL(
std::vector<HEJ::Particle> const & partons
) const;
HEJ::Particle const & most_forward_FKL(
std::vector<HEJ::Particle> const & partons
) const;
HEJ::Particle & most_backward_FKL(std::vector<HEJ::Particle> & partons) const;
HEJ::Particle & most_forward_FKL(std::vector<HEJ::Particle> & partons) const;
bool extremal_FKL_ok(
std::vector<fastjet::PseudoJet> const & partons
) const;
double random_normal(double stddev, HEJ::RNG & ran);
/**
* @internal
* @brief Turns a FKL configuration into a subleading one
*
* @param chance Change to switch to subleading configuration
* @param channels Allowed channels for subleading process
* @param proc Process to decide which subleading
* configurations are allowed
*
* With a chance of "chance" the FKL configuration is either turned into
* a unordered configuration or, for A/W/Z bosons, a configuration with
* a central quark/anti-quark pair.
*/
void maybe_turn_to_subl(double chance, unsigned int channels,
Process const & proc, HEJ::RNG & ran);
void turn_to_uno(bool can_be_uno_backward, bool can_be_uno_forward, HEJ::RNG & ran);
- void turn_to_qqx(bool allow_stange, HEJ::RNG & ran);
+ void turn_to_qqx(bool allow_strange, HEJ::RNG & ran);
std::vector<Particle> decay_boson(
HEJ::Particle const & parent,
std::vector<Decay> const & decays,
HEJ::RNG & ran
);
/// @brief setup outgoing partons to ensure correct coupling to boson
void couple_boson(HEJ::ParticleID boson, HEJ::RNG & ran);
Decay select_decay_channel(
std::vector<Decay> const & decays,
HEJ::RNG & ran
);
double gen_hard_pt(
int np, double ptmin, double ptmax, double y,
HEJ::RNG & ran
);
double gen_soft_pt(int np, double ptmax, HEJ::RNG & ran);
double gen_parton_pt(
int count, JetParameters const & jet_param, double ptmax, double y,
HEJ::RNG & ran
);
double weight_;
Status status_;
std::array<Particle, 2> incoming_;
std::vector<Particle> outgoing_;
//! Particle decays in the format {outgoing index, decay products}
std::unordered_map<size_t, std::vector<Particle>> decays_;
};
HEJ::UnclusteredEvent to_UnclusteredEvent(PhaseSpacePoint const & psp);
}
diff --git a/include/HEJ/PDG_codes.hh b/include/HEJ/PDG_codes.hh
index b528b3b..f055c74 100644
--- a/include/HEJ/PDG_codes.hh
+++ b/include/HEJ/PDG_codes.hh
@@ -1,139 +1,139 @@
/** \file PDG_codes.hh
* \brief Contains the Particle IDs of all relevant SM particles.
*
* Large enumeration included which has multiple entries for potential
* alternative names of different particles. There are also functions
* which can be used to determine if a particle is a parton or if
* it is a non-gluon boson.
*/
#pragma once
#include <string>
namespace HEJ {
//! particle ids according to PDG
namespace pid {
//! The possible particle identities. We use PDG IDs as standard.
enum ParticleID{
d = 1, /*!< Down Quark */
down = d, /*!< Down Quark */
u = 2, /*!< Up Quark */
up = u, /*!< Up Quark */
s = 3, /*!< Strange Quark */
strange = s, /*!< Strange Quark */
c = 4, /*!< Charm Quark */
charm = c, /*!< Charm Quark */
b = 5, /*!< Bottom Quark */
bottom = b, /*!< Bottom Quark */
t = 6, /*!< Top Quark */
top = t, /*!< Top Quark */
e = 11, /*!< Electron */
electron = e, /*!< Electron */
nu_e = 12, /*!< Electron Neutrino */
electron_neutrino = nu_e, /*!< Electron neutrino */
mu = 13, /*!< Muon */
muon = mu, /*!< Muon */
nu_mu = 14, /*!< Muon Neutrino */
muon_neutrino = nu_mu, /*!< Muon Neutrino */
tau = 15, /*!< Tau */
nu_tau = 16, /*!< Tau Neutrino */
tau_neutrino = nu_tau, /*!< Tau Neutrino */
d_bar = -d, /*!< Anti-Down Quark */
u_bar = -u, /*!< Anti-Up quark */
s_bar = -s, /*!< Anti-Strange Quark */
c_bar = -c, /*!< Anti-Charm Quark */
b_bar = -b, /*!< Anti-Bottom Quark */
t_bar = -t, /*!< Anti-Top Quark */
e_bar = -e, /*!< Positron */
positron = e_bar, /*!< Positron */
nu_e_bar = -nu_e, /*!< Anti-Electron Neutrino */
mu_bar = -mu, /*!< Anti-Muon */
nu_mu_bar = -nu_mu, /*!< Anti-Muon Neutrino */
tau_bar = -tau, /*!< Anti-Tau */
nu_tau_bar = -nu_tau, /*!< Anti-Tau Neutrino */
gluon = 21, /*!< Gluon */
g = gluon, /*!< Gluon */
photon = 22, /*!< Photon */
gamma = photon, /*!< Photon */
Z = 23, /*!< Z Boson */
Wp = 24, /*!< W- Boson */
Wm = -Wp, /*!< W+ Boson */
h = 25, /*!< Higgs Boson */
Higgs = h, /*!< Higgs Boson */
higgs = h, /*!< Higgs Boson */
p = 2212, /*!< Proton */
proton = p, /*!< Proton */
p_bar = -p, /*!< Anti-Proton */
};
}
using ParticleID = pid::ParticleID;
//! Convert a particle name to the corresponding PDG particle ID
ParticleID to_ParticleID(std::string const & name);
/**
* \brief Function to determine if particle is a parton
* @param p PDG ID of particle
* @returns true if the particle is a parton, false otherwise
*/
inline
constexpr bool is_parton(ParticleID p){
return p == pid::gluon || std::abs(p) <= pid::top;
}
/**
* \brief function to determine if the particle is a photon, W, Z, or Higgs boson
* @param id PDG ID of particle
* @returns true if the partice is a A,W,Z, or H, false otherwise
*/
inline
constexpr bool is_AWZH_boson(ParticleID id){
return id == pid::Wm || (id >= pid::photon && id <= pid::Higgs);
}
/**
* \brief Function to determine if particle is a quark
* @param id PDG ID of particle
* @returns true if the particle is a qaurk, false otherwise
*/
inline
constexpr bool is_quark(ParticleID id){
return (id >= pid::down && id <= pid::top);
}
/**
* \brief Function to determine if particle is a antiquark
* @param id PDG ID of particle
* @returns true if the particle is an antiquark, false otherwise
*/
inline
constexpr bool is_antiquark(ParticleID id){
return (id <= pid::d_bar && id >= pid::t_bar);
}
/**
- * \brief Function to determine if particle is a (anti-)quark
+ * \brief Function to determine if particle is a any-quark
* @param id PDG ID of particle
* @returns true if the particle is a quark or antiquark, false otherwise
*/
inline
constexpr bool is_anyquark(ParticleID id){
return (id && id >= pid::t_bar && id <= pid::t);
}
/**
* \brief function to determine if the particle is a photon, W or Z
* @param id PDG ID of particle
* @returns true if the partice is a A,W,Z, or H, false otherwise
*/
inline
constexpr bool is_AWZ_boson(ParticleID id){
return id == pid::Wm || (id >= pid::photon && id <= pid::Wp);
}
}

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