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In this section, we re-evaluate the data of EMC and E130 as the
knowledge on the structure function 
has been much improved
since their publication. The 
has been used in the estimation
of the depolarization factor 
. Thus the asymmetry 
could be affected by this re-evaluation.
From the paper [14], we can know their value for 
using Eq.(39). By solving Eq.(8), we have obtained
the value of y for each data point. Then we have re-evaluate 
using 
and y. The results are shown in Table xi.
As for E130 data, they provided the value of 
for each data point
and the estimation of y was rather easier. They also provided 
.
Then the asymmetry has been re-evaluated using new 
values
which are obtained with 
and y. It should be noted that
is still neglected.
Those corrected asymmetries are plotted in Figure 6 together with
recent measurements SMC, E143. Obviously the error bars of E130 are rather
large comparing to the other experiments.
Because of this and the uncertainty originated in 
, we propose
to omit their data from further analysis.
Figure 6: Data on 
are plotted
as functions of x. EMC data E130 data are corrected using revised
.
Table xi: Uncorrected and corrected EMC data.
Table xii: Uncorrected and corrected E130 data.
99
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Next: About this document
Up: Review of the Data
Previous: Deuteron and neutron
Saito Naohito
1996年10月13日 17時20分31秒