Enum MassProposal 

pub enum MassProposal {
    Fixed {
        mass: f64,
    },
    Uniform {
        low: f64,
        high: f64,
    },
}

Invariant-mass proposal for a generated edge.

Variants

Fixed

Always use one invariant mass.

Fields

mass: f64

Fixed invariant mass.

Uniform

Sample uniformly between the given bounds, clipped to kinematic support.

Fields

low: f64

Lower proposal bound.

high: f64

Upper proposal bound.

Implementations

impl MassProposal

pub fn fixed(mass: f64) -> Self

Construct a fixed-mass proposal.

pub fn uniform(low: f64, high: f64) -> Self

Construct a uniform mass proposal.

pub fn propose( &self, minimum: f64, maximum: f64, rng: &mut ProposalRng, ) -> LadduPhysicsResult<MassProposalResult>

Draw a mass within the supplied kinematic interval.

Errors

Returns LadduPhysicsError when the kinematic interval or proposal bounds are non-finite, empty, or exclude a fixed mass.

pub fn density( &self, minimum: f64, maximum: f64, mass: f64, ) -> LadduPhysicsResult<Option<f64>>

Evaluate the proposal density when it is available.

Custom proposals may retain the default None; density-aware generators use this hook only for optional importance adaptation.

Errors

Returns LadduPhysicsError when the kinematic interval and uniform proposal have no valid finite overlap.

Trait Implementations

impl Clone for MassProposal

fn clone(&self) -> MassProposal

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for MassProposal

impl Debug for MassProposal

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for MassProposal

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<Range<f64>> for MassProposal

fn from(range: Range<f64>) -> Self

Converts to this type from the input type.

impl From<f64> for MassProposal

fn from(mass: f64) -> Self

Converts to this type from the input type.

impl Serialize for MassProposal

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.