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Measurement E8M38

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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 : 1.36 — 1.38 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 9.367 0.8827 0.9804
7.5 45 9.886 1.105 0.9207
7.5 75 8.925 1.018 0.9317
7.5 105 10.39 1.096 0.99
7.5 135 12.07 1.235 0.9693
7.5 165 9.771 1.073 0.9367
7.5 195 10.3 1.13 0.9052
7.5 225 9.734 1.091 0.9028
7.5 255 13.13 1.616 0.9922
7.5 285 12.72 1.44 0.9905
7.5 315 11.58 1.235 0.9431
7.5 345 12.14 1.321 1.006
22.5 15 11.48 1.018 1.027
22.5 45 9.985 2.83 0.9719
22.5 75 10.84 1.619 0.9954
22.5 105 9.933 1.152 0.9948
22.5 135 9.12 3.363 0.9662
22.5 255 10.86 1.567 0.9982
22.5 285 9.313 1.311 0.9585
22.5 315 11.99 3.914 0.9954
22.5 345 11.72 1.607 1.033
37.5 45 8.244 0.7896 0.6573
37.5 75 8.779 0.6264 0.6801
37.5 135 7.864 2 0.6491
37.5 165 5.522 0.3497 0.5983
37.5 195 4.748 0.3134 0.5847
37.5 225 6.312 1.033 0.6264
37.5 285 9.161 0.6599 0.6581
37.5 315 9.098 0.7996 0.6596
52.5 45 6.645 0.7181 0.563
52.5 75 9.471 1.403 0.6026
52.5 105 6.848 0.532 0.5758
52.5 135 5.71 0.4162 0.539
52.5 165 4.193 0.2371 0.5126
52.5 195 3.98 0.2129 0.5065
52.5 225 6.372 0.4854 0.5537
52.5 255 8.109 0.7368 0.5802
52.5 285 8.983 1.92 0.5956
52.5 315 6.504 0.4722 0.5553
67.5 45 3.964 0.5122 0.4069
67.5 75 6.392 1.407 0.4782
67.5 105 5.934 0.2897 0.4427
67.5 135 4.591 0.3388 0.419
67.5 165 3.16 0.1797 0.3888
67.5 195 3.317 0.1982 0.3906
67.5 225 5.314 0.4023 0.4465
67.5 255 6.256 0.2885 0.4668
67.5 285 5.815 0.5808 0.4607
67.5 315 3.678 0.6256 0.3989
82.5 15 1.739 0.4342 0.2761
82.5 45 3.686 1.55 0.2793
82.5 75 4.551 0.2976 0.3199
82.5 105 4.79 0.2611 0.3306
82.5 135 3.449 0.2776 0.3006
82.5 165 2.454 0.1806 0.2722
82.5 195 2.788 0.2052 0.2845
82.5 225 4.112 0.317 0.3303
82.5 255 4.771 0.237 0.3355
82.5 285 4.327 0.2765 0.3282
82.5 315 3.19 0.6474 0.2865
82.5 345 1.355 0.4822 0.2621
97.5 45 1.588 0.1309 0.2085
97.5 75 3.252 0.2832 0.2548
97.5 105 3.231 0.1996 0.2524
97.5 135 2.931 0.233 0.2458
97.5 165 1.843 0.1456 0.2164
97.5 195 2.118 0.1604 0.2212
97.5 225 2.553 0.23 0.2302
97.5 255 2.976 0.1741 0.2466
97.5 285 3.118 0.2557 0.2491
97.5 315 1.879 0.1503 0.2138
112.5 15 0.6322 0.1035 0.1212
112.5 45 1.201 0.1175 0.1337
112.5 75 1.943 0.2041 0.1668
112.5 105 1.987 0.164 0.1634
112.5 135 1.501 0.1254 0.1446
112.5 165 1.098 0.1326 0.1274
112.5 195 1.429 0.1532 0.1578
112.5 225 1.768 0.1877 0.1627
112.5 255 1.999 0.1543 0.1735
112.5 285 1.642 0.196 0.1493
112.5 315 1.101 0.114 0.1365
112.5 345 0.5764 0.1073 0.1228
127.5 15 0.2922 0.07579 0.05515
127.5 45 0.7108 0.0964 0.1384
127.5 75 1.216 0.1714 0.1482
127.5 105 1.342 0.1747 0.1512
127.5 135 1.278 0.1957 0.1721
127.5 165 1.169 0.2906 0.1489
127.5 195 0.9168 0.1646 0.1372
127.5 225 1.227 0.1826 0.1632
127.5 255 1.229 0.1284 0.1506
127.5 285 0.8834 0.1162 0.1409
127.5 315 0.706 0.099 0.137
127.5 345 0.3322 0.1148 0.0553
142.5 15 0.26 0.0662 0.03772
142.5 45 0.6408 0.1245 0.1126
142.5 75 0.5811 0.09213 0.104
142.5 105 0.9819 0.2224 0.141
142.5 255 0.717 0.1624 0.1129
142.5 285 0.8119 0.1358 0.1164
142.5 315 0.4335 0.09407 0.09985
142.5 345 0.3034 0.0744 0.03888
157.5 15 0.33 0.1036 0.03725
157.5 345 0.2098 0.06865 0.02659