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19. The formula for
T
z
as it is usually written to include strange baryons is
T
z
= q
– (
S +
B
)/2. Also, we interpret the symbol
q
in the
T
z
formula in terms of elementary charge
units; this is how
q
is listed in Table 443. In terms of charge
q
as we have used it in
previous chapters, the formula is
1
()
2
z
q
TB
S
e
=
−+
.
For instance,
T
z
=+
1
2
for the proton (and the neutral Xi) and
T
z
= −
1
2
for the neutron (and
the negative Xi). The baryon number
B
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 Spring '08
 Any
 Physics, Charge

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