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Herwig  7.2.1
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. More...
 
Complex W2 (Energy2 s, Energy2 mf2)
 The $W_2(s)$ function of NPB297 (1988) 221-243. More...
 
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. More...
 
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. More...
 
Complex b2 (Energy2 s, Energy2 t, Energy2 u, Energy2 mf2)
 The $b_2(s,t,u)$ function of NPB297 (1988) 221-243. More...
 
Complex b4 (Energy2 s, Energy2 t, Energy2 u, Energy2 mf2)
 The $b_2(s,t,u)$ function of NPB297 (1988) 221-243. More...
 
Complex A1 (Energy2 mh2, Energy2 mf2)
 The $A_1(m_h^2)$ function of NPB297 (1988) 221-243. More...
 
Complex A2 (Energy2 s, Energy2 t, Energy2 u, Energy2 mf2)
 The $A_2(s,t,u)$ function of NPB297 (1988) 221-243. More...
 
Complex A4 (Energy2 s, Energy2 t, Energy2 u, Energy2 mf2)
 The $A_4(s,t,u)$ function of NPB297 (1988) 221-243. More...
 

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
mh2The Higgs mass squared
mf2The 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
sThe $s$ invariant
tThe $t$ invariant
uThe $u$ invariant
mf2The 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
sThe $s$ invariant
tThe $t$ invariant
uThe $u$ invariant
mf2The fermion mass squared.

Definition at line 134 of file HiggsLoopFunctions.h.

References A4(), and b4().

Referenced by A4().

◆ 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
sThe $s$ invariant
tThe $t$ invariant
uThe $u$ invariant
mf2The fermion mass squared.

Definition at line 85 of file HiggsLoopFunctions.h.

References b2(), sqr(), W1(), W2(), and W3().

Referenced by A2(), and b2().

◆ 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
sThe $s$ invariant
tThe $t$ invariant
uThe $u$ invariant
mf2The fermion mass squared.

Definition at line 102 of file HiggsLoopFunctions.h.

References b4(), W2(), and W3().

Referenced by A4(), and b4().

◆ 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
sThe $s$ invariant
tThe $t$ invariant
uThe $u$ invariant
vThe $v$ invariant
mf2The fermion mass squared

Definition at line 54 of file HiggsLoopFunctions.h.

References I3(), Herwig::Math::Li2(), sqrt(), and ZERO.

Referenced by I3(), and W3().

◆ W1()

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

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

Parameters
sThe invariant
mf2The fermion mass squared

Definition at line 25 of file HiggsLoopFunctions.h.

References sqrt(), W1(), and ZERO.

Referenced by b2(), and W1().

◆ W2()

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

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

Parameters
sThe invariant
mf2The fermion mass squared

Definition at line 38 of file HiggsLoopFunctions.h.

References sqr(), sqrt(), W2(), and ZERO.

Referenced by A1(), b2(), b4(), and W2().

◆ 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
sThe $s$ invariant
tThe $t$ invariant
uThe $u$ invariant
vThe $u$ invariant
mf2The fermion mass squared.

Definition at line 74 of file HiggsLoopFunctions.h.

References I3(), and W3().

Referenced by b2(), b4(), and W3().