- Description:
- A reference to the SplittingGenerator object
Name: ShowerModel
Type: Reference to objects of class Herwig::ShowerModel
- Description:
- The pointer to the object which defines the shower evolution model.
Name: MaxTry
Type: Integer parameter
- Description:
- The maximum number of attempts to generate the shower from a particular ShowerTree
Default value: 100
Minimum value: 1
Maximum value: 1000
Name: MECorrMode
Type: Switch
- Description:
- Choice of the ME Correction Mode
Registered options:
- 0(
No
)
- MECorrections off
- 1(
Yes
)
- hard+soft on
- 2(
Hard
)
- only hard on
- 3(
Soft
)
- only soft on
Default value: 1
Name: HardVetoMode
Type: Switch
- Description:
- Choice of the Hard Veto Mode
Registered options:
- 0(
No
)
- hard vetos off
- 1(
Yes
)
- hard vetos on
- 2(
Initial
)
- only IS emissions vetoed
- 3(
Final
)
- only FS emissions vetoed
Default value: 1
Name: HardVetoScaleSource
Type: Switch
- Description:
- If hard veto scale is to be read
Registered options:
- 0(
Calculate
)
- Calculate from hard process
- 1(
Read
)
- Read from XComb->lastScale
Default value: 0
Name: HardVetoReadOption
Type: Switch
- Description:
- Apply read-in scale veto to all collisions or just the primary one?
Registered options:
- 0(
AllCollisions
)
- Read-in pT veto applied to primary and secondary collisions.
- 1(
PrimaryCollision
)
- Read-in pT veto applied to primary but not secondary collisions.
Default value: 0
Name: IntrinsicPtGaussian
Type: Parameter
- Description:
- RMS of intrinsic pT of Gaussian distribution: 2*(1-Beta)*exp(-sqr(intrinsicpT/RMS))/sqr(RMS)
Default value: 0
Minimum value: 0
Maximum value: 1e+06
Name: IntrinsicPtBeta
Type: Parameter
- Description:
- Proportion of inverse quadratic distribution in generating intrinsic pT. (1-Beta) is the proportion of Gaussian distribution
Default value: 0
Minimum value: 0
Maximum value: 1
Name: IntrinsicPtGamma
Type: Parameter
- Description:
- Parameter for inverse quadratic: 2*Beta*Gamma/(sqr(Gamma)+sqr(intrinsicpT))
Default value: 0
Minimum value: 0
Maximum value: 100000
Name: IntrinsicPtIptmax
Type: Parameter
- Description:
- Upper bound on intrinsic pT for inverse quadratic
Default value: 0
Minimum value: 0
Maximum value: 100000
Name: Vetoes
Type: Varying size vector of references to objects of class
- Description:
- The vetoes to be checked during showering
Name: LimitEmissions
Type: Switch
- Description:
- Limit the number and type of emissions for testing
Registered options:
- 0(
NoLimit
)
- Allow an arbitrary number of emissions
- 1(
OneInitialStateEmission
)
- Allow one emission in the initial state and none in the final state
- 2(
OneFinalStateEmission
)
- Allow one emission in the final state and none in the initial state
- 3(
HardOnly
)
- Only allow radiation from the hard ME correction
Default value: 0
Name: HardOnly
Type: Switch
- Description:
- Only generate the emission supplied by the hardest emission generator, for testing only.
Registered options:
- 0(
No
)
- Generate full shower
- 1(
Yes
)
- Only the hardest emission
Default value: 0
Name: TruncatedShower
Type: Switch
- Description:
- Include the truncated shower?
Registered options:
- 0(
No
)
- Truncated Shower is OFF
- 1(
Yes
)
- Truncated Shower is ON
Default value: 1
Name: HardEmissionMode
Type: Switch
- Description:
- Whether to use ME corrections or POWHEG for the hardest emission
Registered options:
- 0(
MECorrection
)
- Old fashioned ME correction
- 1(
POWHEG
)
- Powheg style hard emission
Default value: 0
Name: ColourEvolutionMethod
Type: Switch
- Description:
- Choice of method for choosing the colour factor in gluon evolution
Registered options:
- 0(
Default
)
- Colour factor is CA for all scales
- 1(
HalfCA
)
- Only use half the normal radiation until second scale is reached
Default value: 0
Name: ReconstructionOption
Type: Switch
- Description:
- Treatment of the reconstruction of the transverse momentum of a branching from the evolution scale.
Registered options:
- 0(
CutOff
)
- Use the cut-off masses in the calculation
- 1(
OffShell
)
- Use the off-shell masses in the calculation
Default value: 0
Name: HardScaleFactor
Type: Parameter
- Description:
- Set the factor to multiply the hard veto scale.
Default value: 1
Minimum value: 0