dynamics
Functions for dynamics lineshapes and kinematics.
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class RelativisticBreitWigner(*args)[source]
Bases: Expr
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s: Any[source]
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mass0: Any[source]
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gamma0: Any[source]
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m1: Any[source]
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m2: Any[source]
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angular_momentum: Any[source]
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meson_radius: Any[source]
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phsp_factor: PhaseSpaceFactorProtocol[source]
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class BreitWignerMinL(*args)[source]
Bases: Expr
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s: Any[source]
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decaying_mass: Any[source]
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spectator_mass: Any[source]
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resonance_mass: Any[source]
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resonance_width: Any[source]
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child2_mass: Any[source]
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child1_mass: Any[source]
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l_dec: Any[source]
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l_prod: Any[source]
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R_dec: Any[source]
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R_prod: Any[source]
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phsp_factor: PhaseSpaceFactorProtocol[source]
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class BuggBreitWigner(*args)[source]
Bases: Expr
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s: Any[source]
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m0: Any[source]
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Γ0: Any[source]
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m1: Any[source]
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m2: Any[source]
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γ: Any[source]
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class FlattéSWave(*args)[source]
Bases: Expr
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s: Any[source]
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m0: Any[source]
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widths: tuple[Any, Any][source]
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masses1: tuple[Any, Any][source]
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masses2: tuple[Any, Any][source]
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class MultichannelBreitWigner(s, mass, channels, *args, evaluate: bool = False, **kwargs)[source]
Bases: Expr
Breit–Wigner with a running width summed over several decay channels.
Each channel is a ChannelArguments term \(\Gamma_i(s)\), giving the lineshape
\[\frac{1}{m_0^2 - s - i \sum_i g_i^2 \rho_i(s) F_{L_i}^2(s)},\]
with \(g_i^2\) the coupling squared of each channel, \(\rho_i\) the
PhaseSpaceFactor, and \(F_{L_i}\) the form
factor. This is the convention used by the amplitude-serialization models and by
HadronicLineshapes.jl.
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s: Any[source]
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mass: Any[source]
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channels: tuple[ChannelArguments, ...][source]
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class ChannelArguments(s, m0, coupling_squared, m1, m2, angular_momentum, meson_radius, *args, evaluate: bool = False, **kwargs)[source]
Bases: Expr
One channel term \(\Gamma_i(s)\) of a MultichannelBreitWigner.
\[\Gamma_i(s) = \frac{g_i^2}{m_0} \rho_i(s) F_{L_i}^2(s)\]
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s: Any[source]
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m0: Any[source]
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coupling_squared: Any[source]
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m1: Any = 0[source]
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m2: Any = 0[source]
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angular_momentum: Any = 0[source]
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meson_radius: Any = 1[source]
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class BreitWigner(*args)[source]
Bases: Expr
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s: Any[source]
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mass: Any[source]
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width: Any[source]
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m1: Any = 0[source]
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m2: Any = 0[source]
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angular_momentum: Any = 0[source]
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meson_radius: Any = 1[source]
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phsp_factor: PhaseSpaceFactorProtocol[source]
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energy_dependent_width() → Expr[source]
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class SimpleBreitWigner(*args)[source]
Bases: Expr
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s: Any[source]
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mass: Any[source]
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width: Any[source]
Submodules and Subpackages
