Table 7 The spin matrix element $r_{00}^{04}$ and the ratio of cross sections for longitudinally and transversely polarised photons, R = σ _L /σ _T , as a function of Q², averaged over the Q² and W bins given in the table. The first uncertainty is statistical, the second systematic.

2–3

2.4

32–120

$0.60\pm {0.01}_{-0.03}^{+0.03}$

${1.50}_{-0.05-0.15}^{+0.05+0.20}$

3–5

3.7

32–120

$0.68\pm {0.01}_{-0.02}^{+0.02}$

${2.10}_{-0.08-0.14}^{+0.08+0.18}$

5–7

5.9

40–140

$0.73\pm {0.01}_{-0.02}^{+0.01}$

${2.70}_{-0.13-0.28}^{+0.14+0.26}$

7–10

8.3

40–140

$0.76\pm {0.01}_{-0.02}^{+0.01}$

${3.20}_{-0.18-0.27}^{+0.20+0.25}$

10–15

12.0

40–140

$0.78\pm {0.01}_{-0.01}^{+0.01}$

${3.50}_{-0.24-0.26}^{+0.26+0.30}$

15–30

19.5

40–140

$0.82\pm {0.02}_{-0.02}^{+0.01}$

${4.60}_{-0.45-0.44}^{+0.54+0.48}$

30–100

40.5

40–160

$0.86\pm {0.04}_{-0.02}^{+0.03}$

${6.10}_{-1.56-0.85}^{+2.75+2.15}$