Brief class description:: ShowerApproximation describes the shower emission to be used in NLO matching.
See also Herwig::ShowerApproximation

Name: MaxPtIsMuF
Type: Switch

Description:

Registered options:

0(No)
1(Yes)

Default value: 0

Name: LargeNBasis
Type: Reference to objects of class Herwig::ColourBasis

Description:: Set the large-N colour basis implementation.

Name: HardScaleProfile
Type: Reference to objects of class Herwig::HardScaleProfile

Description:: The hard scale profile to use.

Name: FactorizationScaleFreeze
Type: Parameter

Description:: The freezing scale for the factorization scale.
Default value: 1
Minimum value: 0

Name: RenormalizationScaleFreeze
Type: Parameter

Description:: The freezing scale for the renormalization scale.
Default value: 1
Minimum value: 0

Name: EmissionScaleInSplitting
Type: Switch

Description:

Set the scale choice for the emission in the splitting.
Registered options:

0(BornScale): Use the Born scale.
1(RealScale): Use the real emission scale.
2(ShowerScale): Use the shower scale

Default value: 2

Name: BornScaleInSplitting
Type: Switch

Description:

Set the scale choice for the Born cross section in the splitting.
Registered options:

0(BornScale): Use the Born scale.
1(RealScale): Use the real emission scale.
2(ShowerScale): Use the shower scale

Default value: 2

Name: RealEmissionScaleInSplitting
Type: Switch

Description:

Set the scale choice for the real emission cross section in the splitting.
Registered options:

0(BornScale): Use the Born scale.
1(RealScale): Use the real emission scale.
2(ShowerScale): Use the shower scale

Default value: 2

Name: EmissionScaleInSubtraction
Type: Switch

Description:

Set the scale choice for the emission in the matching subtraction.
Registered options:

0(BornScale): Use the Born scale.
1(RealScale): Use the real emission scale.
2(ShowerScale): Use the shower scale

Default value: 2

Name: BornScaleInSubtraction
Type: Switch

Description:

Set the scale choice for the Born cross section in the matching subtraction.
Registered options:

0(BornScale): Use the Born scale.
1(RealScale): Use the real emission scale.
2(ShowerScale): Use the shower scale

Default value: 2

Name: RealEmissionScaleInSubtraction
Type: Switch

Description:

Set the scale choice for the real emission cross section in the matching subtraction.
Registered options:

0(BornScale): Use the Born scale.
1(RealScale): Use the real emission scale.
2(ShowerScale): Use the shower scale

Default value: 2

Name: ExtrapolationX
Type: Parameter

Description:: The x from which on extrapolation should be performed.
Default value: 1
Minimum value: 0
Maximum value: 1

Name: FactorizationScaleFactor
Type: Parameter

Description:: The hard scale factor.
Default value: 1
Minimum value: 0

Name: RenormalizationScaleFactor
Type: Parameter

Description:: The hard scale factor.
Default value: 1
Minimum value: 0

Name: HardScaleFactor
Type: Parameter

Description:: The hard scale factor.
Default value: 1
Minimum value: 0

Name: RestrictPhasespace
Type: Switch

Description:

Switch on or off phasespace restrictions
Registered options:

0(No): Do not perform phasespace restrictions
1(Yes): Perform phasespace restrictions

Default value: 1

Name: IIScreeningScale
Type: Parameter

Description:: Set the screening scale
Default value: 0
Minimum value: 0

Name: FIScreeningScale
Type: Parameter

Description:: Set the screening scale
Default value: 0
Minimum value: 0

Name: FFScreeningScale
Type: Parameter

Description:: Set the screening scale
Default value: 0
Minimum value: 0

Name: SafeCut
Type: Parameter

Description:: Set the enhanced infrared cutoff for the Matching.
Default value: 0
Minimum value: 0

Name: IIPtCut
Type: Parameter

Description:: Set the pt infrared cutoff
Default value: 1
Minimum value: 0

Name: FIPtCut
Type: Parameter

Description:: Set the pt infrared cutoff
Default value: 1
Minimum value: 0

Name: FFPtCut
Type: Parameter

Description:: Set the pt infrared cutoff
Default value: 1
Minimum value: 0