44.18:
a) We shall assume that the kinetic energy of the
0
Λ
is negligible. In that case we
can set the value of the photon’s energy equal to
Q.
.
MeV
77
MeV
)
1116
1193
(
photon
E
Q
=
=

=
b) The momentum of this photon is
s
m
kg
10
4.1
)
s
m
10
(3.00
)
eV
J
10
(1.60
eV)
10
(77
20
8
18
6
photon
⋅
×
=
×
×
×
=
=


c
E
p
To justify our original assumption, we can calculate the kinetic energy of a
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