transition¶
import qrules.transition
Find allowed transitions between an initial and final state.
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class
ExecutionInfo
(not_executed_node_rules: Dict[int, Set[str]] = NOTHING, violated_node_rules: Dict[int, Set[str]] = NOTHING, not_executed_edge_rules: Dict[int, Set[str]] = NOTHING, violated_edge_rules: Dict[int, Set[str]] = NOTHING)[source]¶ Bases:
object
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extend
(other_result: ExecutionInfo, intersect_violations: bool = False) → None[source]¶
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class
ProblemSet
(topology: Topology, initial_facts: InitialFacts, solving_settings: GraphSettings)[source]¶ Bases:
object
Particle reaction problem set, defined as a graph like data structure.
- Parameters
topology –
Topology
that contains the structure of the reaction.initial_facts –
InitialFacts
that contain the info of initial and final state in connection with the topology.solving_settings – Solving related settings such as the conservation rules and the quantum number domains.
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initial_facts
: InitialFacts¶
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solving_settings
: GraphSettings¶
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to_qn_problem_set
() → QNProblemSet[source]¶
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class
ReactionInfo
(transition_groups, formalism: str)[source]¶ Bases:
object
StateTransitionCollection
instances, grouped byTopology
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final_state
: FrozenDict[int, Particle]¶
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static
from_graphs
(graphs: Iterable[StateTransitionGraph[Tuple[Particle, float]]], formalism: str) → ReactionInfo[source]¶
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get_intermediate_particles
() → ParticleCollection[source]¶ Extract the names of the intermediate state particles.
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initial_state
: FrozenDict[int, Particle]¶
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to_graphs
() → List[StateTransitionGraph[Tuple[Particle, float]]][source]¶
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transition_groups
: Tuple[StateTransitionCollection, …]¶
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transitions
: List[StateTransition]¶
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class
SolvingMode
(value)[source]¶ Bases:
enum.Enum
Types of modes for solving.
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FAST
= 1¶ Find “likeliest” solutions only.
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FULL
= 2¶ Find all possible solutions.
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class
StateTransition
(topology: Topology, states, interactions)[source]¶ Bases:
object
Frozen instance of a
StateTransitionGraph
ofParticle
with spin.-
property
final_states
¶
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static
from_graph
(graph: StateTransitionGraph[Tuple[Particle, float]]) → StateTransition[source]¶
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property
initial_states
¶
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interactions
: FrozenDict[int, InteractionProperties]¶
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property
intermediate_states
¶
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property
particles
¶
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states
: FrozenDict[int, State]¶
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to_graph
() → StateTransitionGraph[Tuple[Particle, float]][source]¶
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property
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class
StateTransitionCollection
(transitions)[source]¶ Bases:
collections.abc.Set
StateTransition
instances with the sameTopology
and edge IDs.-
final_state
: FrozenDict[int, Particle]¶
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static
from_graphs
(graphs: Iterable[StateTransitionGraph[Tuple[Particle, float]]]) → StateTransitionCollection[source]¶
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get_intermediate_particles
() → ParticleCollection[source]¶ Extract the particle names of the intermediate states.
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initial_state
: FrozenDict[int, Particle]¶
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to_graphs
() → List[StateTransitionGraph[Tuple[Particle, float]]][source]¶
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transitions
: FrozenSet[StateTransition]¶
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class
StateTransitionManager
(initial_state: Sequence[Union[str, Tuple[str, Sequence[float]]]], final_state: Sequence[Union[str, Tuple[str, Sequence[float]]]], particle_db: Optional[qrules.particle.ParticleCollection] = None, allowed_intermediate_particles: Optional[List[str]] = None, interaction_type_settings: Optional[Dict[qrules.settings.InteractionType, Tuple[qrules.solving.EdgeSettings, qrules.solving.NodeSettings]]] = None, formalism: str = 'helicity', topology_building: str = 'isobar', number_of_threads: Optional[int] = None, solving_mode: qrules.transition.SolvingMode = <SolvingMode.FAST: 1>, reload_pdg: bool = False, mass_conservation_factor: Optional[float] = 3.0, max_angular_momentum: int = 1, max_spin_magnitude: float = 2.0)[source]¶ Bases:
object
Main handler for decay topologies.
See also
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create_problem_sets
() → Dict[float, List[ProblemSet]][source]¶
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find_solutions
(problem_sets: Dict[float, List[ProblemSet]]) → ReactionInfo[source]¶ Check for solutions for a specific set of interaction settings.
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property
formalism
¶
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set_allowed_interaction_types
(allowed_interaction_types: Iterable[InteractionType]) → None[source]¶
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