Interfaces defined for the Herwig::MEPP2Higgs class.

Brief class description:

The MEPP2Higgs class implements the matrix elements for Higgs production (with decay H->W-W+) in hadron-hadron collisions including the generation of additional hard QCD radiation in gg to h0 processes in the POWHEG scheme
See also Herwig::MEPP2Higgs

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Name: SpinCorrelations
Type: Switch

Description:

Which on/off spin correlations in the hard process
Registered options:

0(No)

Switch correlations off

1(Yes)

Switch correlations on

Default value: 1

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Name: mu_F_Option
Type: Switch

Description:

Option to use pT or mT as the factorization scale in the PDFs
Registered options:

0(mT)

Use mT as the scale in the PDFs

1(pT)

Use pT as the scale in the PDFs

Default value: 1

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Name: mu_R_Option
Type: Switch

Description:

Option to use pT or mT as the scale in alphaS
Registered options:

0(mT)

Use mT as the scale in alpha_S

1(pT)

Use pT as the scale in alpha_S

Default value: 1

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Name: minPt
Type: Parameter

Description:

The pt cut on hardest emision generation2*(1-Beta)*exp(-sqr(intrinsicpT/RMS))/sqr(RMS)
Default value: 2
Minimum value: 0
Maximum value: 100000

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Name: Prefactorgqbar
Type: Parameter

Description:

The prefactor for the sampling of the g qbar channel
Default value: 3
Minimum value: 0
Maximum value: 1000

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Name: Prefactorqg
Type: Parameter

Description:

The prefactor for the sampling of the q g channel
Default value: 3
Minimum value: 0
Maximum value: 1000

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Name: Prefactorgg
Type: Parameter

Description:

The prefactor for the sampling of the q qbar channel
Default value: 7
Minimum value: 0
Maximum value: 1000

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Name: Power
Type: Parameter

Description:

The power for the sampling of the matrix elements
Default value: 2
Minimum value: 1
Maximum value: 10

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Name: InitialEnhancementFactor
Type: Parameter

Description:

The enhancement factor for initial-state radiation in the shower to ensure the weight for the matrix element correction is less than one.
Default value: 1.1
Minimum value: 1
Maximum value: 10

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Name: QGPower
Type: Parameter

Description:

Power for the phase-space sampling of the qg and qbarg channels
Default value: 1.6
Minimum value: 1
Maximum value: 3

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Name: GGPower
Type: Parameter

Description:

Power for the phase-space sampling of the gg channel
Default value: 1.6
Minimum value: 1
Maximum value: 3

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Name: QbarGChannelWeight
Type: Parameter

Description:

The relative weights of the g g abd qbar g channels for selection. This is a technical parameter for the phase-space generation and should not affect the results only the efficiency and fraction
Default value: 0.15
Minimum value: 0
Maximum value: 1e+10

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Name: QGChannelWeight
Type: Parameter

Description:

The relative weights of the g g and q g channels for selection. This is a technical parameter for the phase-space generation and should not affect the results only the efficiency and fraction of events with weight > 1.
Default value: 0.45
Minimum value: 0
Maximum value: 1e+10

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Name: MaximumFlavour
Type: Integer parameter

Description:

The maximum flavour of the incoming quarks in the hard process
Default value: 5
Minimum value: 3
Maximum value: 5

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Name: MinimumFlavour
Type: Integer parameter

Description:

The minimum flavour of the incoming quarks in the hard process
Default value: 4
Minimum value: 3
Maximum value: 5

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Name: MassOption
Type: Switch

Description:

Option for the treatment of the masses in the loop diagrams
Registered options:

0(Full)

Include the full mass dependence

1(Large)

Use the heavy mass limit

Default value: 0

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Name: MaximumInLoop
Type: Integer parameter

Description:

The maximum flavour of the quarks to include in the loops
Default value: 6
Minimum value: 5
Maximum value: 6

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Name: MinimumInLoop
Type: Integer parameter

Description:

The minimum flavour of the quarks to include in the loops
Default value: 6
Minimum value: 5
Maximum value: 6

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Name: Process
Type: Switch

Description:

Which subprocesses to include
Registered options:

1(All)

Include all subprocesses

2(qqbar)

Only include the incoming q qbar subprocess

3(gg)

Only include the incoming gg subprocess

Default value: 1

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Name: ShapeScheme
Type: Switch

Description:

Option for the treatment of the Higgs resonance shape
Registered options:

1(FixedBreitWigner)

Breit-Wigner s-channel resonanse

2(MassGenerator)

Use the mass generator to give the shape

Default value: 1

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Name: Coupling
Type: Reference to objects of class Herwig::ShowerAlpha

Description:

Pointer to the object to calculate the coupling for the correction

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Name: FactorizationScaleValue
Type: Parameter

Description:

Value to use in the event of a fixed factorization scale
Default value: 100
Minimum value: 50
Maximum value: 500

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Name: FactorizationScaleOption
Type: Switch

Description:

Option for the choice of factorization scale
Registered options:

1(Dynamic)

Dynamic factorization scale equal to the current sqrt(sHat())

2(Fixed)

Use a fixed factorization scale set with FactorizationScaleValue

Default value: 1

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