Typedefs
typedef std::bitset< 10 >	ReactionsBitSet
	Container for the 2 to 2 reactions in the code. More...

typedef std::bitset< 4 >	MultiParticleReactionsBitSet
	Container for the n to m reactions in the code. More...

Enumerations
enum class	CalculationFrame { CenterOfVelocity , CenterOfMass , FixedTarget }
	The calculation frame. More...

enum class	FermiMotion { Off , On , Frozen }
	Option to use Fermi Motion. More...

enum class	Sampling { Uniform , Quadratic , Custom }
	Possible methods of impact parameter sampling. More...

enum class	DerivativesMode { CovariantGaussian , FiniteDifference , Off }
	Modes of calculating the gradients. More...

enum class	RestFrameDensityDerivativesMode { On , Off }
	Modes of calculating the gradients: whether to calculate the rest frame density derivatives. More...

enum class	FieldDerivativesMode { ChainRule , Direct }
	Modes of calculating the field gradients: chain rule or direct. More...

enum class	SmearingMode { CovariantGaussian , Discrete , Triangular }
	Modes of smearing. More...

enum class	TimeStepMode : char { None , Fixed }
	The time step mode. More...

enum class	BoxInitialCondition { ThermalMomentaBoltzmann , ThermalMomentaQuantum , PeakedMomenta }
	Initial condition for a particle in a box. More...

enum class	SphereInitialCondition { ThermalMomentaBoltzmann , ThermalMomentaQuantum , IC_ES , IC_1M , IC_2M , IC_Massive }
	Initial condition for a particle in a sphere. More...

enum class	ExpansionMode { NoExpansion , MasslessFRW , MassiveFRW , Exponential }
	Defines properties of expansion for the metric (e.g. More...

enum class	NNbarTreatment { NoAnnihilation , Resonances , TwoToFive , Strings }
	Treatment of N Nbar Annihilation. More...

enum class	ThermodynamicQuantity : char { EckartDensity , Tmn , TmnLandau , LandauVelocity , j_QBS }
	Represents thermodynamic quantities that can be printed out See user guide description for more information. More...

enum class	CollisionCriterion { Geometric , Stochastic , Covariant }
	Criteria used to check collisions. More...

enum class	OutputOnlyFinal { Yes , No , IfNotEmpty }
	Whether and when only final state particles should be printed. More...

enum	IncludedReactions { All = 50 , Elastic = 0 , NN_to_NR = 1 , NN_to_DR = 2 , KN_to_KN = 3 , KN_to_KDelta = 4 , Strangeness_exchange = 5 , NNbar = 6 , PiDeuteron_to_NN = 7 , PiDeuteron_to_pidprime = 8 , NDeuteron_to_Ndprime = 9 }
	The different groups of 2 to 2 reactions that one can include. More...

enum	IncludedMultiParticleReactions { Meson_3to1 = 0 , Deuteron_3to2 = 1 , NNbar_5to2 = 2 , A3_Nuclei_4to2 = 3 }
	The different groups of multi-particle reactions that one can include. More...

enum class	ThermalizationAlgorithm { ModeSampling , BiasedBF , UnbiasedBF }
	Defines the algorithm used for the forced thermalization. More...

enum class	EventCounting { FixedNumber , MinimumNonEmpty , Invalid }
	Defines how the number of events is determined. More...

enum class	TotalCrossSectionStrategy { BottomUp , TopDown , TopDownMeasured }
	Determine how total cross sections for collision finding should be computed. More...

enum class	PseudoResonance { None , Largest , Closest , LargestFromUnstable , ClosestFromUnstable }
	Which pseudo-resonance fills the inelastic gap in the transition to string region of cross sections. More...

Typedef Documentation

◆ ReactionsBitSet

typedef std::bitset<10> ReactionsBitSet

Container for the 2 to 2 reactions in the code.

Definition at line 269 of file forwarddeclarations.h.

◆ MultiParticleReactionsBitSet

typedef std::bitset<4> MultiParticleReactionsBitSet

Container for the n to m reactions in the code.

Definition at line 280 of file forwarddeclarations.h.

Enumeration Type Documentation

◆ CalculationFrame

enum CalculationFrame

strong

The calculation frame.

Enumerator
CenterOfVelocity
CenterOfMass
FixedTarget

Definition at line 83 of file forwarddeclarations.h.

                             {
   CenterOfVelocity,
   CenterOfMass,
   FixedTarget,
 };

◆ FermiMotion

enum FermiMotion

strong

Option to use Fermi Motion.

Enumerator
Off	Don't use fermi motion.
On	Use fermi motion in combination with potentials.
Frozen	Use fermi motion without potentials.

Definition at line 90 of file forwarddeclarations.h.

                        {
   Off,
   On,
   Frozen,
 };

◆ Sampling

enum Sampling

strong

Possible methods of impact parameter sampling.

Enumerator
Uniform	Sample from uniform distribution.
Quadratic	Sample from areal / quadratic distribution.
Custom	Sample from custom, user-defined distribution.

Definition at line 100 of file forwarddeclarations.h.

                     {
   Uniform,
   Quadratic,
   Custom,
 };

◆ DerivativesMode

enum DerivativesMode

strong

Modes of calculating the gradients.

Enumerator
CovariantGaussian
FiniteDifference
Off

Definition at line 110 of file forwarddeclarations.h.

                            {
   CovariantGaussian,
   FiniteDifference,
   Off,
 };

◆ RestFrameDensityDerivativesMode

enum RestFrameDensityDerivativesMode

strong

Modes of calculating the gradients: whether to calculate the rest frame density derivatives.

Enumerator
On
Off

Definition at line 120 of file forwarddeclarations.h.

◆ FieldDerivativesMode

enum FieldDerivativesMode

strong

Modes of calculating the field gradients: chain rule or direct.

The modes only make sense for the VDF potentials.

Enumerator
ChainRule
Direct

Definition at line 129 of file forwarddeclarations.h.

                                 {
   ChainRule,
   Direct,
 };

◆ SmearingMode

enum SmearingMode

strong

Modes of smearing.

Enumerator
CovariantGaussian
Discrete
Triangular

Definition at line 135 of file forwarddeclarations.h.

                         {
   CovariantGaussian,
   Discrete,
   Triangular,
 };

◆ TimeStepMode

enum TimeStepMode : char

strong

The time step mode.

Enumerator
None	Don't use time steps; propagate from action to action.
Fixed	Use fixed time step.

Definition at line 142 of file forwarddeclarations.h.

                         : char {
   None,
   Fixed,
 };

◆ BoxInitialCondition

enum BoxInitialCondition

strong

Initial condition for a particle in a box.

In all cases, the positions in space are chosen randomly.

Enumerator
ThermalMomentaBoltzmann	A thermalized ensemble is generated, with momenta sampled from a Maxwell-Boltzmann distribution.
ThermalMomentaQuantum	A thermalized ensemble is generated, with momenta of baryons(mesons) sampled from a Fermi(Bose) distribution.
PeakedMomenta	All particles have the same momentum \(p = 3 \cdot T\) with T being the temperature.

Definition at line 154 of file forwarddeclarations.h.

                                {
   ThermalMomentaBoltzmann,
   ThermalMomentaQuantum,
   PeakedMomenta,
 };

◆ SphereInitialCondition

enum SphereInitialCondition

strong

Initial condition for a particle in a sphere.

Enumerator
ThermalMomentaBoltzmann	A thermalized ensemble is generated, with momenta sampled from a Maxwell-Boltzmann distribution.
ThermalMomentaQuantum	A thermalized ensemble is generated, with momenta of baryons(mesons) sampled from a Fermi(Bose) distribution.
IC_ES	Off-equilibrium distribution used in massless comparisons of SMASH to the extended universe metric. See eq. (76) in Bazow:2016oky [7]
IC_1M	Off-equilibrium distribution used in massless comparisons of SMASH to the extended universe metric. See eq. (77) in Bazow:2016oky [7]
IC_2M	Off-equilibrium distribution used in massless comparisons of SMASH to the extended universe metric. See eq. (78) in Bazow:2016oky [7]
IC_Massive	A generalization of IC_ES for the non-zero mass case; note that there is currently no analytical comparison possible with this distribution.

Definition at line 167 of file forwarddeclarations.h.

                                   {
   ThermalMomentaBoltzmann,
   ThermalMomentaQuantum,
   IC_ES,
   IC_1M,
   IC_2M,
   IC_Massive,
 };

◆ ExpansionMode

enum ExpansionMode

strong

Defines properties of expansion for the metric (e.g.

FRW)

If anything else than NoExpansion is used, then a non-zero Hubble parameter is computed and corrections are brought to the propagation of all particles according to selected expanding metric.

Enumerator
NoExpansion
MasslessFRW
MassiveFRW
Exponential

Definition at line 196 of file forwarddeclarations.h.

                          {
   NoExpansion,
   MasslessFRW,
   MassiveFRW,
   Exponential,
 };

◆ NNbarTreatment

enum NNbarTreatment

strong

Treatment of N Nbar Annihilation.

Enumerator
NoAnnihilation	No Annihilation.
Resonances	Use intermediate Resonances.
TwoToFive	Directly create 5 pions, use with multi-particle reactions.
Strings	Use string fragmentation.

Definition at line 204 of file forwarddeclarations.h.

                           {
   NoAnnihilation,
   Resonances,
   TwoToFive,
   Strings,
 };

◆ ThermodynamicQuantity

enum ThermodynamicQuantity : char

strong

Represents thermodynamic quantities that can be printed out See user guide description for more information.

Enumerator
EckartDensity	Density in the Eckart frame.
Tmn	Energy-momentum tensor in lab frame.
TmnLandau	Energy-momentum tensor in Landau rest frame.
LandauVelocity	Velocity of the Landau rest frame.
j_QBS	Electric (Q), baryonic (B) and strange (S) currents.

Definition at line 219 of file forwarddeclarations.h.

                                  : char {
   EckartDensity,
   Tmn,
   TmnLandau,
   LandauVelocity,
   j_QBS
 };

◆ CollisionCriterion

enum CollisionCriterion

strong

Criteria used to check collisions.

Enumerator
Geometric	Geometric criterion.
Stochastic	Stochastic Criteiron.
Covariant	Covariant Criterion.

Definition at line 233 of file forwarddeclarations.h.

                               {
   Geometric,
   Stochastic,
   Covariant
 };

◆ OutputOnlyFinal

enum OutputOnlyFinal

strong

Whether and when only final state particles should be printed.

Enumerator
Yes	Print only final-state particles.
No	Print initial, intermediate and final-state particles.
IfNotEmpty	Print only final-state particles, and those only if the event is not empty.

Definition at line 243 of file forwarddeclarations.h.

                            {
   Yes,
   No,
   IfNotEmpty,
 };

◆ IncludedReactions

enum IncludedReactions

The different groups of 2 to 2 reactions that one can include.

Enumerator
All
Elastic
NN_to_NR
NN_to_DR
KN_to_KN
KN_to_KDelta
Strangeness_exchange
NNbar
PiDeuteron_to_NN
PiDeuteron_to_pidprime
NDeuteron_to_Ndprime

Definition at line 254 of file forwarddeclarations.h.

                        {
   All = 50,
   Elastic = 0,
   NN_to_NR = 1,
   NN_to_DR = 2,
   KN_to_KN = 3,
   KN_to_KDelta = 4,
   Strangeness_exchange = 5,
   NNbar = 6,
   PiDeuteron_to_NN = 7,
   PiDeuteron_to_pidprime = 8,
   NDeuteron_to_Ndprime = 9,
 };

◆ IncludedMultiParticleReactions

enum IncludedMultiParticleReactions

The different groups of multi-particle reactions that one can include.

Enumerator
Meson_3to1
Deuteron_3to2
NNbar_5to2
A3_Nuclei_4to2

Definition at line 272 of file forwarddeclarations.h.

                                     {
   Meson_3to1 = 0,
   Deuteron_3to2 = 1,
   NNbar_5to2 = 2,
   A3_Nuclei_4to2 = 3,
 };

◆ ThermalizationAlgorithm

enum ThermalizationAlgorithm

strong

Defines the algorithm used for the forced thermalization.

For the description of algorithms see Oliinychenko:2016vkg [41]. All of them intend to conserve the net baryon number, strangeness and electric charge, as well as energy. Mode sampling is the fastest, but least theoretically robust, unbiased BF is the slowest (even hangs completely from time to time), but it is also the most theoretically robust.

Enumerator
ModeSampling
BiasedBF
UnbiasedBF

Definition at line 291 of file forwarddeclarations.h.

                                    {
   ModeSampling,
   BiasedBF,
   UnbiasedBF,
 };

◆ EventCounting

enum EventCounting

strong

Defines how the number of events is determined.

Enumerator
FixedNumber	The desired number of events is simulated disregarding of whether an interaction took place.
MinimumNonEmpty	Events are simulated until there are at least a given number of ensembles in which an interaction took place.
Invalid	Unused, only in the code for internal logic.

Definition at line 298 of file forwarddeclarations.h.

                          {
   FixedNumber,
   MinimumNonEmpty,
   Invalid,
 };

◆ TotalCrossSectionStrategy

enum TotalCrossSectionStrategy

strong

Determine how total cross sections for collision finding should be computed.

Enumerator
BottomUp	Sum the existing partial contributions.
TopDown	Use parametrizations based on existing data, rescaling with AQM for unmeasured processes.
TopDownMeasured	Mix the two above, using the parametrizations only for measured processes, and summing up partials for unmeasured interactions.

Definition at line 310 of file forwarddeclarations.h.

                                      {
   BottomUp,
   TopDown,
   TopDownMeasured,
 };

◆ PseudoResonance

enum PseudoResonance

strong

Which pseudo-resonance fills the inelastic gap in the transition to string region of cross sections.

See user guide description for more information.

Enumerator
None	No pseudo-resonance is created.
Largest	Resonance of largest mass for all processes.
Closest	Resonance with the pole mass closest from the invariant mass of incoming particles for all processes.
LargestFromUnstable	Heaviest possible resonance from processes with at least one resonance in the incoming particles.
ClosestFromUnstable	Closest resonance for a given mass from processes with at least one resonance in the incoming particles.

Definition at line 325 of file forwarddeclarations.h.

                            {
   None,
   Largest,
   Closest,
   LargestFromUnstable,
   ClosestFromUnstable,
 };

Typedefs

Enumerations

Typedef Documentation

◆ ReactionsBitSet

◆ MultiParticleReactionsBitSet

Enumeration Type Documentation

◆ CalculationFrame

◆ FermiMotion

◆ Sampling

◆ DerivativesMode

◆ RestFrameDensityDerivativesMode

◆ FieldDerivativesMode

◆ SmearingMode

◆ TimeStepMode

◆ BoxInitialCondition

◆ SphereInitialCondition

◆ ExpansionMode

◆ NNbarTreatment

◆ ThermodynamicQuantity

◆ CollisionCriterion

◆ OutputOnlyFinal

◆ IncludedReactions

◆ IncludedMultiParticleReactions

◆ ThermalizationAlgorithm

◆ EventCounting

◆ TotalCrossSectionStrategy

◆ PseudoResonance