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Herwig  7.2.1
Interfaces defined for the Herwig::OniumToOniumPiPiDecayer class.
Brief class description:
The OniumToOniumPiPiDecayer class uses the matrix element of Brown and Cahn, PRL35, 1 (1975), for the decay of onium resonaces to lighter states and pion pairs. The results of hep-ex/9909038 are used for psi'->psi and arXiv:0706.2317 for Upsilon(3S) and Upsilon(2S) decays. The remaining parameters are choosen to approximately reproduce the distributions from hep-ex/0604031 and hep-ex/0508023.
See also Herwig::OniumToOniumPiPiDecayer

Name: ImC
Type: Varying size vector of parameters

Description:
The imaginary part of the C coupling
Default value: 1
Minimum value: -1000
Maximum value: 1000

Name: ReC
Type: Varying size vector of parameters

Description:
The real part of the C coupling
Default value: 1
Minimum value: -1000
Maximum value: 1000

Name: ImB
Type: Varying size vector of parameters

Description:
The imaginary part of the B coupling
Default value: 1
Minimum value: -1000
Maximum value: 1000

Name: ReB
Type: Varying size vector of parameters

Description:
The real part of the B coupling
Default value: 1
Minimum value: -1000
Maximum value: 1000

Name: ImA
Type: Varying size vector of parameters

Description:
The imaginary part of the A coupling
Default value: 1
Minimum value: -1000
Maximum value: 1000

Name: ReA
Type: Varying size vector of parameters

Description:
The real part of the A coupling
Default value: 1
Minimum value: -1000
Maximum value: 1000

Name: Coupling
Type: Varying size vector of parameters

Description:
The overall coupling for the decay
Default value: 1
Minimum value: 0
Maximum value: 10

Name: MaxWeight
Type: Varying size vector of parameters

Description:
The maximum weight for the decay mode, there should be two for each mode as we have pi+ pi- and pi0 pi0
Default value: 1
Minimum value: 0
Maximum value: 10000

Name: Outgoing
Type: Varying size vector of integer parameters

Description:
The PDG code for the outgoing onium state
Default value: 0
Minimum value: -10000000
Maximum value: 10000000

Name: Incoming
Type: Varying size vector of integer parameters

Description:
The PDG code for the incoming onium state
Default value: 0
Minimum value: -10000000
Maximum value: 10000000

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