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Measurement E8M5

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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 : 0.25 — 0.35 GeV2
W : 1.18 — 1.2 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 15 9.645 1.353 1.089
7.5 45 18.12 2.561 1.328
7.5 75 6.595 0.9442 1.036
7.5 105 13.18 2.457 1.086
7.5 135 10.96 1.202 1.146
7.5 165 9.543 1.224 1.079
7.5 195 10.76 1.237 1.084
7.5 225 10.87 1.207 1.075
7.5 255 8.709 1.112 1.055
7.5 285 11.11 1.551 1.122
7.5 315 14.52 1.939 1.181
7.5 345 12.27 1.886 1.144
22.5 15 7.654 2.175 0.69
22.5 45 6.493 0.779 0.6826
22.5 75 10.06 1.019 0.7627
22.5 105 11.5 0.7686 0.8014
22.5 135 11.16 0.6936 0.8021
22.5 165 12.74 0.7779 0.8337
22.5 195 14.19 0.8658 0.8531
22.5 225 12.7 0.7461 0.8176
22.5 255 12.16 0.8518 0.8099
22.5 285 8.624 0.8419 0.7392
22.5 315 5.645 0.6571 0.6796
22.5 345 4.984 0.8467 0.6944
37.5 75 8.43 1.31 0.9663
37.5 105 15.28 2.243 1.093
37.5 135 14.38 0.7348 1.088
37.5 165 14.11 0.6581 1.062
37.5 195 14.58 0.6868 1.095
37.5 225 14.45 0.7646 1.066
37.5 255 12.84 1.613 1.055
37.5 285 9.234 1.253 0.9925
52.5 45 8.556 0.8697 0.9358
52.5 75 14.64 0.6707 1.042
52.5 105 18.24 1.887 1.116
52.5 135 16.28 1.116 1.086
52.5 165 13.54 0.6663 1.036
52.5 195 13.7 0.6496 1.047
52.5 225 16.62 1.088 1.112
52.5 255 18.14 1.862 1.145
52.5 285 14.05 0.6452 1.032
52.5 315 7.388 0.6079 0.9201
67.5 45 10.19 0.6133 1.053
67.5 75 17.23 0.6206 1.17
67.5 105 20.91 0.8517 1.291
67.5 135 20.75 2.066 1.291
67.5 165 13.61 0.5965 1.109
67.5 195 13.89 0.6093 1.123
67.5 225 15.71 1.353 1.155
67.5 255 19.65 0.7759 1.224
67.5 285 17.26 0.6408 1.189
67.5 315 10.26 0.5002 1.043
82.5 45 11.99 1.132 1.126
82.5 75 19.57 0.7081 1.277
82.5 105 23.27 0.8243 1.339
82.5 135 17.28 1.301 1.228
82.5 165 12.53 0.5233 1.145
82.5 195 12.79 0.5351 1.156
82.5 225 16.78 1.777 1.235
82.5 255 21.66 0.7194 1.359
82.5 285 18.63 0.6757 1.268
82.5 315 13.47 1.283 1.14
97.5 15 9.142 1.803 1.031
97.5 45 15.41 0.8817 1.166
97.5 75 21.29 1.231 1.267
97.5 105 20.87 0.6868 1.303
97.5 135 17.42 1.355 1.209
97.5 165 11.6 0.5988 1.08
97.5 195 11.8 0.6415 1.079
97.5 225 17.86 1.244 1.199
97.5 255 21.52 0.676 1.298
97.5 285 20.01 0.9516 1.273
97.5 315 13.57 0.7776 1.109
97.5 345 7.854 0.944 1.018
112.5 15 8.503 0.7153 0.9479
112.5 45 13.47 0.5912 1.037
112.5 75 19.88 1.474 1.2
112.5 105 19.29 0.7022 1.203
112.5 135 14.23 1.239 1.073
112.5 165 10.45 0.9658 1.032
112.5 195 9.444 0.9869 0.9927
112.5 225 14.98 1.048 1.158
112.5 255 19.84 0.675 1.227
112.5 285 19.05 1.118 1.171
112.5 315 13.73 0.6716 1.063
112.5 345 8.274 0.8248 0.9595
127.5 15 9.335 0.8998 0.9944
127.5 45 13.15 0.6653 1.057
127.5 75 15.76 0.9619 1.131
127.5 105 16.23 1.032 1.119
127.5 135 12.28 0.9252 1.064
127.5 225 12.88 0.8053 1.065
127.5 255 20.1 1.357 1.26
127.5 285 19.71 1.497 1.206
127.5 315 13.56 0.7309 1.064
127.5 345 10.73 1.017 1.009
142.5 15 11.16 1.067 0.9853
142.5 45 11.95 0.9193 0.9823
142.5 75 14.76 0.7867 1.044
142.5 285 15.3 0.9555 1.055
142.5 315 13.79 1.01 1.036
142.5 345 11.26 1.011 0.9755
157.5 15 13.43 1.689 0.9631
157.5 345 11.89 1.395 0.9722