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Herwig  7.2.1
Interfaces defined for the Herwig::a1ThreePionDecayer class.
Brief class description:
The a1ThreePionDecayer class is designed to decay the a_1 resonance to three pions using a model based on that used in the modelling of tau->4 pions.
See also Herwig::a1ThreePionDecayer

Name: SigmaPhase
Type: Parameter

Description:
phase of the relative sigma coupling
Default value: 0.43585
Minimum value: 0
Maximum value: 6.28319

Name: SigmaMagnitude
Type: Parameter

Description:
magnitude of the relative sigma coupling
Default value: 1.39987
Minimum value: 0
Maximum value: 1e+21

Name: ThreeMax
Type: Parameter

Description:
The maximum weight for the integration fo the channel a_1^+->pi+pi+pi-
Default value: 739.334
Minimum value: 0
Maximum value: 10000

Name: TwoMax
Type: Parameter

Description:
The maximum weight for the integration fo the channel a_1^0->pi+pi-pi0
Default value: 1750.73
Minimum value: 0
Maximum value: 10000

Name: OneMax
Type: Parameter

Description:
The maximum weight for the integration fo the channel a_1^+->pi+pi0pi0
Default value: 1088.96
Minimum value: 0
Maximum value: 10000

Name: ZeroMax
Type: Parameter

Description:
The maximum weight for the integration fo the channel a_1^0->pi0pi0pi0
Default value: 107.793
Minimum value: 0
Maximum value: 10000

Name: ThreeChargedWeights
Type: Varying size vector of parameters

Description:
The weights of the different channels to use for the integration of the decay a_1^+->pi+pi+pi-
Default value: 0
Minimum value: -10000
Maximum value: 10000

Name: TwoChargedWeights
Type: Varying size vector of parameters

Description:
The weights of the different channels to use for the integration of the decay a_1^0->pi+pi-pi0
Default value: 0
Minimum value: -10000
Maximum value: 10000

Name: OneChargedWeights
Type: Varying size vector of parameters

Description:
The weights of the different channels to use for the integration of the decay a_1^+->pi+pi0pi0
Default value: 0
Minimum value: -10000
Maximum value: 10000

Name: AllNeutralWeights
Type: Varying size vector of parameters

Description:
The weights of the different channels to use for the integration of the decay a_1^0->pi0pi0pi0
Default value: 0
Minimum value: -10000
Maximum value: 10000

Name: SigmaWidth
Type: Parameter

Description:
The local value of the sigma width
Default value: 0.8
Minimum value: 0
Maximum value: 10

Name: SigmaMass
Type: Parameter

Description:
The local value of the sigma mass
Default value: 0.8
Minimum value: 0
Maximum value: 10

Name: a1mass2
Type: Parameter

Description:
The local value of the square of the a_1 mass
Default value: 1.5129
Minimum value: 0.5
Maximum value: 10

Name: Lambda2
Type: Parameter

Description:
The value of the mass scale squared to use in the form-factor
Default value: 1.2
Minimum value: 0.0001
Maximum value: 10

Name: RhoPhase
Type: Varying size vector of parameters

Description:
The phase of the rho coupling
Default value: 0
Minimum value: 0
Maximum value: 6.28319

Name: RhoMagnitude
Type: Varying size vector of parameters

Description:
The magnitude of the rho couplings
Default value: 1
Minimum value: 0
Maximum value: 10

Name: RhoWidths
Type: Varying size vector of parameters

Description:
The widths of the different rho resonnaces
Default value: 0
Minimum value: 0
Maximum value: 10000

Name: RhoMasses
Type: Varying size vector of parameters

Description:
The masses of the different rho resonnaces
Default value: 0
Minimum value: 0
Maximum value: 10000

Name: Coupling
Type: Parameter

Description:
The overall coupling for the decay
Default value: 90.44
Minimum value: 0
Maximum value: 1000

Name: LocalParameters
Type: Switch

Description:
Use local values of the intermediate resonances masses and widths
Registered options:
0(ParticleData)
Use the values from the particleData objects
1(Local)
Use the local values
Default value: 1

There may be interfaces inherited from the Herwig::DecayIntegrator class.