4002 lJu 82 2v3827040/hp-pe:hviXraa∗
a
τ
τ−
ντ
τ
−
ν(k)+N(p)→τ−(k′,sµ)+X
′
ksµ
µsµ=0s2µ=−1.
dσ(k,q,s)∼LµνWµν.
Wµν=−gµνF1+pτpν
2p·q
F3
+qµqν
2p·q
F5
Fi
Lµν
=
+8msα
8
kµk′ν+kνk′µ−gµνk′αkα−iǫµναβ′βkνgαµ+kµgνα−gµνkα−iǫµνβαkβ
kαk
k′
m
sµ
sτ
µ
Psdσ(k,q,s)−dσ(k,q,−s)
µ=
′
k′
m
|k|,Eτ
′|
,
eµp
=
|k×k0,
et×k′
P2l+Pp2+P2t
.Pt
dσ
4πM
F
G2pτ
q(Eτ+pτcos(θ))
0
+F3
qF5
0
Pp=
−1q(pτ+Eτcos(θ))
0
+F3
qF5cos(θ)
/F
0
Pp
=−
msin(θ)
q+
E
F50
q0
/F
E
qEτ
0=E−Eτ
pτ
FM
4=0
xF5=F2
W>M+mπ
2
2
Q
τ−
Eτ
(N=
1
4 8.3 6.3 4.3 o62.=θ3 3 8.2 6.2 4.2001111 01 .001 0. 00. 0 2.4 4 8.3 6.3 4o.33 =θ2.3 3 8.2 6.2 4.2001111 01 .001 0. 00. 0
2.4 4 8.3 8k6.9eVd3 4oRo.0GB 3 =+θ 28.93 VR3 G8.2 6.2 4.2001111 01 .001 0. 00. 0 ]
VeG/2
mc8
3-0
1[ )θ(socdτEd/σdτ−
4 8.3 6.3 4.3] V2e.3G [ τ3E 8.2 6.2 4.21820 .... 0000 2.4 4 8.3 6.3 4].V3e 2G[. 3τ E3 8.2 6.2 4.21820 .... 0000
2.4 4 8.3 6.3 4].V3e 2G[. 3τ E3 8.2 6.2 4.21820 .... 0000 P
θ=0o3o6o
8 7 6 6=5 θ4 3 2 0011111501 .000001 .00- 0. 00e. 01 8 7 6 3=5 θ4 3 2 000111115001 .0001 000. 0-1 00. e 00. 01
8 7 8k9e6 Vd0RoGB= 5 θ+ V4R G3 2 000111115001 .000001 0. 00-1 0. 0e 0. 01 ]
VeG/2
mc8
3-0
1[ )θ(socdτEd/σd−
τ
8 7 6 ]Ve5 G[ τE4 3 2 1820 .... 0000
8 7 6 ]Ve5 G[ τE4 3 2 1820 .... 0000
8 7 6 ]Ve5 G[ τE4 3 2 1820 .... 0000 P
θ=0o3o6o
Pl
A֒
o o o