Herwig::HiggsLoopFunctions Namespace Reference

This is a namespace which provides the loop functions from NPB297 (1988) 221-243 which are used to calculate Higgs production with an additional jet and the real correction to \(h^0\to gg\). More...

Functions
Complex	W1 (Energy2 s, Energy2 mf2)
	The \(W_1(s)\) function of NPB297 (1988) 221-243.
Complex	W2 (Energy2 s, Energy2 mf2)
	The \(W_2(s)\) function of NPB297 (1988) 221-243.
Complex	I3 (Energy2 s, Energy2 t, Energy2 u, Energy2 v, Energy2 mf2)
	The \(I_3(s,t,u,v)\) function of NPB297 (1988) 221-243.
Complex	W3 (Energy2 s, Energy2 t, Energy2 u, Energy2 v, Energy2 mf2)
	The \(W_3(s,t,u,v)\) function of NPB297 (1988) 221-243.
Complex	b2 (Energy2 s, Energy2 t, Energy2 u, Energy2 mf2)
	The \(b_2(s,t,u)\) function of NPB297 (1988) 221-243.
Complex	b4 (Energy2 s, Energy2 t, Energy2 u, Energy2 mf2)
	The \(b_2(s,t,u)\) function of NPB297 (1988) 221-243.
Complex	A1 (Energy2 mh2, Energy2 mf2)
	The \(A_1(m_h^2)\) function of NPB297 (1988) 221-243.
Complex	A2 (Energy2 s, Energy2 t, Energy2 u, Energy2 mf2)
	The \(A_2(s,t,u)\) function of NPB297 (1988) 221-243.
Complex	A4 (Energy2 s, Energy2 t, Energy2 u, Energy2 mf2)
	The \(A_4(s,t,u)\) function of NPB297 (1988) 221-243.

Variables
const Complex	epsi = Complex(0.,-1.e-20)
	Epsilon parameter.

Detailed Description

This is a namespace which provides the loop functions from NPB297 (1988) 221-243 which are used to calculate Higgs production with an additional jet and the real correction to \(h^0\to gg\).

Function Documentation

A1()

Complex Herwig::HiggsLoopFunctions::A1	(	Energy2	mh2,
		Energy2	mf2
	)

The \(A_1(m_h^2)\) function of NPB297 (1988) 221-243.

Parameters

mh2	The Higgs mass squared
mf2	The fermion mass squared.

Definition at line 112 of file HiggsLoopFunctions.h.

References W2().

A2()

Complex Herwig::HiggsLoopFunctions::A2	(	Energy2	s,
		Energy2	t,
		Energy2	u,
		Energy2	mf2
	)

The \(A_2(s,t,u)\) function of NPB297 (1988) 221-243.

Parameters

s	The \(s\) invariant
t	The \(t\) invariant
u	The \(u\) invariant
mf2	The fermion mass squared.

Definition at line 123 of file HiggsLoopFunctions.h.

References b2().

A4()

Complex Herwig::HiggsLoopFunctions::A4	(	Energy2	s,
		Energy2	t,
		Energy2	u,
		Energy2	mf2
	)

The \(A_4(s,t,u)\) function of NPB297 (1988) 221-243.

Parameters

s	The \(s\) invariant
t	The \(t\) invariant
u	The \(u\) invariant
mf2	The fermion mass squared.

Definition at line 134 of file HiggsLoopFunctions.h.

References b4().

b2()

Complex Herwig::HiggsLoopFunctions::b2	(	Energy2	s,
		Energy2	t,
		Energy2	u,
		Energy2	mf2
	)

The \(b_2(s,t,u)\) function of NPB297 (1988) 221-243.

Parameters

s	The \(s\) invariant
t	The \(t\) invariant
u	The \(u\) invariant
mf2	The fermion mass squared.

Definition at line 85 of file HiggsLoopFunctions.h.

References ThePEG::sqr(), W1(), W2(), and W3().

Referenced by A2().

b4()

Complex Herwig::HiggsLoopFunctions::b4	(	Energy2	s,
		Energy2	t,
		Energy2	u,
		Energy2	mf2
	)

The \(b_2(s,t,u)\) function of NPB297 (1988) 221-243.

Parameters

s	The \(s\) invariant
t	The \(t\) invariant
u	The \(u\) invariant
mf2	The fermion mass squared.

Definition at line 102 of file HiggsLoopFunctions.h.

References W2(), and W3().

Referenced by A4().

I3()

Complex Herwig::HiggsLoopFunctions::I3	(	Energy2	s,
		Energy2	t,
		Energy2	u,
		Energy2	v,
		Energy2	mf2
	)

The \(I_3(s,t,u,v)\) function of NPB297 (1988) 221-243.

Parameters

s	The \(s\) invariant
t	The \(t\) invariant
u	The \(u\) invariant
v	The \(v\) invariant
mf2	The fermion mass squared

Definition at line 54 of file HiggsLoopFunctions.h.

References epsi, Herwig::Math::Li2(), ThePEG::sqrt(), v, and ThePEG::ZERO.

Referenced by W3().

W1()

Complex Herwig::HiggsLoopFunctions::W1	(	Energy2	s,
		Energy2	mf2
	)

The \(W_1(s)\) function of NPB297 (1988) 221-243.

Parameters

s	The invariant
mf2	The fermion mass squared

Definition at line 25 of file HiggsLoopFunctions.h.

References ThePEG::Constants::pi, ThePEG::sqrt(), and ThePEG::ZERO.

Referenced by b2().

W2()

Complex Herwig::HiggsLoopFunctions::W2	(	Energy2	s,
		Energy2	mf2
	)

The \(W_2(s)\) function of NPB297 (1988) 221-243.

Parameters

s	The invariant
mf2	The fermion mass squared

Definition at line 38 of file HiggsLoopFunctions.h.

References ThePEG::Constants::pi, ThePEG::sqr(), ThePEG::sqrt(), and ThePEG::ZERO.

Referenced by A1(), b2(), and b4().

W3()

Complex Herwig::HiggsLoopFunctions::W3	(	Energy2	s,
		Energy2	t,
		Energy2	u,
		Energy2	v,
		Energy2	mf2
	)

The \(W_3(s,t,u,v)\) function of NPB297 (1988) 221-243.

Parameters

s	The \(s\) invariant
t	The \(t\) invariant
u	The \(u\) invariant
v	The \(u\) invariant
mf2	The fermion mass squared.

Definition at line 74 of file HiggsLoopFunctions.h.

References I3(), and v.

Referenced by b2(), and b4().

Variable Documentation

epsi

const Complex Herwig::HiggsLoopFunctions::epsi = Complex(0.,-1.e-20)

Epsilon parameter.

Definition at line 18 of file HiggsLoopFunctions.h.

Referenced by I3().