Contents

reaction

Definition and solving of particle reaction problems.

This is the core component of the expertsystem: it defines the StateTransitionGraph data structure that represents a specific particle reaction. The solving submodule is responsible for finding solutions for particle reaction problems.

class SolvingMode(value)[source]

Bases: enum.Enum

Types of modes for solving.

Fast = 1

find “likeliest” solutions only

Full = 2

find all possible solutions

class StateTransitionManager(initial_state: Sequence[Union[str, Tuple[str, Sequence[float]]]], final_state: Sequence[Union[str, Tuple[str, Sequence[float]]]], particles: Optional[expertsystem.particle.ParticleCollection] = None, allowed_intermediate_particles: Optional[List[str]] = None, interaction_type_settings: Dict[expertsystem.reaction.solving.InteractionTypes, Tuple[expertsystem.reaction.solving.EdgeSettings, expertsystem.reaction.solving.NodeSettings]] = None, formalism_type: str = 'helicity', topology_building: str = 'isobar', number_of_threads: int = 4, solving_mode: expertsystem.reaction.SolvingMode = <SolvingMode.Fast: 1>, reload_pdg: bool = False)[source]

Bases: object

Main handler for decay topologies.

add_final_state_grouping(fs_group: List[Union[str, List[str]]]) → None[source]
find_solutions(graph_setting_groups: Dict[float, List[Tuple[expertsystem.reaction.topology.StateTransitionGraph, expertsystem.reaction.solving.GraphSettings]]]) → expertsystem.reaction.solving.Result[source]

Check for solutions for a specific set of interaction settings.

property formalism_type
prepare_graphs() → Dict[float, List[Tuple[expertsystem.reaction.topology.StateTransitionGraph, expertsystem.reaction.solving.GraphSettings]]][source]
set_allowed_interaction_types(allowed_interaction_types: List[expertsystem.reaction.solving.InteractionTypes]) → None[source]
set_allowed_intermediate_particles(particle_names: List[str]) → None[source]
set_topology_builder(topology_builder: expertsystem.reaction.topology.SimpleStateTransitionTopologyBuilder) → None[source]
load_default_particles() → expertsystem.particle.ParticleCollection[source]

Load the default particle list that comes with the expertsystem.

Submodules and Subpackages

io combinatorics