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Measurement E8M30

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Experiment: E89-038 CLAS experiment, 1999

Spokespersons: V. Burkert, R. Minehart

Experiment comment: Beam energy 1.515 GeV. Global 5.8% scaling systematic uncertainty for all data points

Measurement comment: Global 5.8% scaling systematic uncertainty

Publication:

Quantity measured: dσ/dΩ, mcbn/sterad
Differential cross section.
Beam: e, polarization: none
Target: p (Z=1, A=1), polarization: none
Final state: π+n, polarization: none

Q2 : 0.35 — 0.45 GeV2
W : 1.2 — 1.22 GeV
Ebeam : 1.515 GeV

Select data slice:
θπ = deg

Fit φ dependence:

 Observable quantity measured (Y axis): dσ/dΩ, mcbn/sterad
Plot measurement data

Parameter (X axis): φπ, deg

Click here to get data in text file, delimited with tabs.

Click here to get calculated fit coefficients in text file, delimited with tabs.

Measured data:

θπ,
deg 		φπ,
deg 		dσ/dΩ,
mcbn/sterad 		Data errors,
mcbn/sterad 		Systematic errors,
mcbn/sterad
7.5 45 8.112 2.194 0.9482
7.5 75 9.983 1.47 1.011
7.5 105 17.04 1.875 1.161
7.5 135 12.79 1.729 1.008
7.5 165 12.29 1.537 0.9759
7.5 195 12.04 1.474 0.9777
7.5 225 9.823 1.151 0.9746
7.5 255 11.94 1.482 0.9796
7.5 285 11.19 1.553 0.9935
7.5 315 13.8 3.441 1.002
7.5 345 7.401 3.63 0.9174
22.5 15 8.001 1.842 0.9365
22.5 45 8.876 4.106 0.978
22.5 75 8.893 0.9305 0.977
22.5 105 13.33 0.9609 1.055
22.5 135 13.19 0.797 1.048
22.5 165 12.77 0.747 1.057
22.5 195 12.55 0.7305 1.039
22.5 225 11.76 0.7323 1.028
22.5 255 11.58 0.8909 1.005
22.5 285 8.749 1.069 0.9902
22.5 345 8.648 2.078 0.9846
37.5 15 6.386 1.114 0.8843
37.5 75 12.77 1.434 0.9736
37.5 105 14.76 1.093 1.027
37.5 135 14.66 0.7559 1.019
37.5 165 12.93 0.6294 0.975
37.5 195 13.3 0.6492 1.008
37.5 225 13.56 0.7179 1.004
37.5 255 14.19 1.13 0.9851
37.5 285 10.94 1.085 0.9593
37.5 345 5.737 0.8678 0.8667
52.5 45 14.01 3.916 1.007
52.5 75 15.11 0.7138 1.083
52.5 105 16.65 0.9722 1.128
52.5 135 16.5 0.924 1.121
52.5 165 11.82 0.5292 1.038
52.5 195 13.88 0.5923 1.061
52.5 225 15.48 0.8397 1.117
52.5 255 16.52 1.022 1.119
52.5 285 15.81 0.6954 1.113
52.5 315 13.78 3.902 1.026
67.5 45 14.78 2.413 1.162
67.5 75 19.45 0.6763 1.276
67.5 105 19.72 0.8544 1.265
67.5 135 15.71 0.9157 1.195
67.5 165 12.24 0.6043 1.12
67.5 195 12.97 0.6348 1.134
67.5 225 17.72 1.068 1.235
67.5 255 21.35 0.9044 1.326
67.5 285 18.72 0.6564 1.247
67.5 315 12.21 1.285 1.102
82.5 45 12.69 0.994 1.163
82.5 75 19.48 0.6784 1.299
82.5 105 22.34 0.8087 1.385
82.5 135 18.81 1.032 1.29
82.5 165 10.88 0.4665 1.142
82.5 195 11.66 0.4724 1.165
82.5 225 18.43 1.031 1.274
82.5 255 21.94 0.7364 1.375
82.5 285 19.24 0.661 1.292
82.5 315 11.96 0.9437 1.159
97.5 15 6.986 0.7731 0.9891
97.5 45 14.81 0.751 1.104
97.5 75 20.89 0.9291 1.258
97.5 105 21.27 0.7287 1.263
97.5 135 17.62 0.8806 1.187
97.5 165 11.09 0.5623 1.049
97.5 195 11.6 0.581 1.047
97.5 225 16.24 0.8217 1.187
97.5 255 21.61 0.701 1.268
97.5 285 21.01 0.8838 1.231
97.5 315 14.54 0.7362 1.111
97.5 345 9.513 1.253 1.029
112.5 15 8.556 0.6593 0.926
112.5 45 13.54 0.5946 1.002
112.5 75 18.57 1.001 1.135
112.5 105 18.34 0.6403 1.125
112.5 135 15.49 0.9 1.041
112.5 165 9.545 0.633 0.9448
112.5 195 9.129 0.5903 0.9364
112.5 225 12.85 0.7188 0.9875
112.5 255 19.24 0.6487 1.153
112.5 285 19.65 1.032 1.174
112.5 315 14.34 0.6586 1.035
112.5 345 8.518 0.8025 0.932
127.5 15 9.591 0.755 0.9156
127.5 45 12.94 0.6316 0.9848
127.5 75 14.54 0.7746 1.017
127.5 105 16.95 0.8867 1.101
127.5 135 11.1 0.7501 0.9581
127.5 165 8.711 1.449 0.919
127.5 225 13.73 1.048 1.022
127.5 255 15.98 0.7766 1.041
127.5 285 15.4 0.8537 1.054
127.5 315 13.49 0.7252 0.9696
127.5 345 7.889 0.671 0.8883
142.5 15 9.8 0.8716 0.8606
142.5 45 10.15 0.6956 0.8889
142.5 75 12.6 0.7228 0.9456
142.5 105 15.17 2.085 0.9816
142.5 255 11.32 2.037 0.9632
142.5 285 14.46 0.879 0.9466
142.5 315 11.71 0.8301 0.9052
142.5 345 9.766 0.9197 0.8724
157.5 15 11.84 1.485 1.505
157.5 45 15.43 4.325 1.422
157.5 315 13.81 3.985 1.356
157.5 345 11.35 1.59 1.428