| theta_e degrees | Q2 /fm2 | e89044 cm2/sr from tgt gauges <sigma> | Amroun cm2/sr @ 640 MeV
sigma |
Calculation using Otterman
form factors in pwba <sigma> |
| 20.167 | 1.29 | 1.16e-29 | 1.14e-29 | |
| 22.46 | 1.59 | 5.66e-30 | 5.40e-30 | |
| 24.62 | 1.88 | 3.03e-30 | 2.87e-30 | |
| 26.96 | 2.26 | 1.45e-30 | 1.34e-30 | |
| 30.77 | 2.91 | 4.51e-31 | 4.25e-31 | |
| 35.0 @ 640 MeV | 3.68 | 1.292e-31 +- 3.7% | ||
| 34.97 | 3.70 | 1.30e-31 | ||
| 39.17 | 4.56 | 3.73e-32 | ||
| 40.0 @ 640 MeV | 4.68 | 2.953e-32 +- 3.7% | ||
| 41.20 | 4.99 | 2.01e-32 | ||
| 41.20 | 4.99 | 2.04e-32 |
Deduction of target density by comparison to the Otterman calculation in this table.
from the target gauges and DJM's chart rho = 0.0672
g/cm3
from renormaliztion of measured cross section and
Otterman
using 1.29<Q2<2.91
rho = 0.0703 +- 2.2%
or using 1.59<Q2<2.91 rho = 0.0712 +-
1.3%