184
Supersymmetric dark matter
X
W,z
X
x'-Cal
- '-"W,Z
X/
(b)
LW'> H,h
X
(c)
W,Z
x,
,..JW
,
X"
(e)
'H,h,A
X~ _____ H'h'A
Xn
X
(g)-----H,h,A
X> , , , ,H,h,A
- - --<
H,h,A ,
X
( i ) ' " 'H,h,A
x
f
x
l
X ____
~ f'lW,Z
X-Cd)
- -H,h,A
X
___ / Z . W
H,h,A ""
"
X
(r)
'",b,A
X~
, , , ,B,h,A
Z
,
X
( h ) ' " 'B,h,A
X~f
Cl
X~l
x
r
X
1
Figure 6.1. Feyman diagrams for neutralino annihilation processes: Xn is any of the
neutralino or (in the t-channel) chargino states; h is the lightest (neutral) Higgs scalar,
H is the other neutral Higgs or charged Higgs; A is the pseudoscalar; f is a fermi on and f
is the corresponding sfermion. (Not all processes are allowed.)