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Measurement E8M18

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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 : 1.44 — 1.46 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 12.16 1.005 0.8912
7.5 45 11.14 1.051 0.8595
7.5 75 11.98 1.328 0.8477
7.5 105 9.912 1.135 0.8082
7.5 135 9.181 0.9196 0.7914
7.5 165 8.276 0.7936 0.796
7.5 195 6.189 0.6013 0.744
7.5 225 6.731 0.7207 0.7677
7.5 255 9.519 1.149 0.8217
7.5 285 11.87 1.395 0.9835
7.5 315 13.49 1.414 0.8829
7.5 345 9.846 0.8344 0.8574
22.5 75 7.974 1.159 0.6693
22.5 105 8.574 1.451 0.6832
22.5 135 7.396 0.7257 0.6456
22.5 165 5.356 0.4661 0.6244
22.5 195 4.998 0.4951 0.6112
22.5 225 6.054 0.5417 0.6269
22.5 255 8.908 1.297 0.6995
22.5 285 8.493 2.248 0.69
37.5 45 8.248 0.539 0.8804
37.5 75 9.58 0.463 0.9049
37.5 105 10.15 1.055 0.9462
37.5 255 8.568 0.9579 0.8832
37.5 285 9.55 0.4321 0.9135
37.5 315 9.192 0.7539 0.8932
52.5 45 7.452 1.235 0.5481
52.5 75 9.248 0.6296 0.6158
52.5 135 5.545 0.4677 0.5246
52.5 165 3.051 0.1664 0.4693
52.5 195 2.725 0.1504 0.4687
52.5 225 4.869 0.3835 0.5106
52.5 285 9.831 0.6734 0.6117
52.5 315 7.271 1.594 0.5498
67.5 15 3.056 0.3846 0.3622
67.5 45 5.024 0.4087 0.4047
67.5 75 7.004 0.8612 0.4402
67.5 105 7.342 0.2949 0.4621
67.5 135 5.459 0.3568 0.4132
67.5 165 2.741 0.1551 0.3634
67.5 195 2.571 0.1447 0.3539
67.5 225 4.731 0.3225 0.4074
67.5 255 7.451 0.2713 0.4683
67.5 315 4.79 0.3814 0.3984
67.5 345 2.286 0.3007 0.3523
82.5 15 2.443 0.8797 0.312
82.5 45 3.116 0.3364 0.324
82.5 75 5.356 0.3275 0.383
82.5 105 5.603 0.2332 0.394
82.5 135 4.023 0.2787 0.3527
82.5 165 2.09 0.1465 0.3062
82.5 195 2.101 0.1452 0.3071
82.5 225 3.97 0.2822 0.3496
82.5 255 5.08 0.2174 0.3736
82.5 285 5.564 0.3427 0.3764
82.5 315 3.767 1.135 0.3285
82.5 345 1.812 0.6033 0.2965
97.5 15 1.184 0.1584 0.2029
97.5 45 2.386 0.1538 0.2315
97.5 75 4.027 0.2868 0.288
97.5 105 4.029 0.2073 0.2869
97.5 135 3.129 0.2775 0.2583
97.5 165 1.37 0.1239 0.2134
97.5 195 1.886 0.1673 0.2223
97.5 225 3.318 0.2846 0.2596
97.5 255 4.346 0.2222 0.2982
97.5 285 4.675 0.3251 0.2906
97.5 315 2.406 0.1591 0.2298
97.5 345 0.9067 0.1495 0.2016
112.5 15 0.7247 0.1202 0.1485
112.5 45 1.587 0.1382 0.1642
112.5 75 2.831 0.2635 0.2008
112.5 105 2.77 0.1804 0.2128
112.5 135 2.559 0.3639 0.2013
112.5 165 1.517 0.1999 0.1641
112.5 195 1.266 0.1237 0.1632
112.5 225 1.939 0.1589 0.1824
112.5 255 2.836 0.173 0.218
112.5 285 2.805 0.2379 0.2085
112.5 315 1.751 0.158 0.1681
112.5 345 0.6684 0.116 0.1467
127.5 15 0.4464 0.09101 0.0772
127.5 45 1.205 0.1529 0.1688
127.5 75 1.484 0.1509 0.1802
127.5 105 1.719 0.1664 0.1914
127.5 135 2.018 0.4967 0.1925
127.5 165 0.9399 0.1843 0.1743
127.5 195 1.316 0.2618 0.1723
127.5 225 1.621 0.1762 0.1788
127.5 255 1.744 0.1579 0.1826
127.5 285 1.732 0.1605 0.1849
127.5 315 1.253 0.1421 0.1735
127.5 345 0.4678 0.08197 0.07721
142.5 15 0.4584 0.08073 0.05889
142.5 45 0.7918 0.1406 0.1441
142.5 75 1.122 0.1591 0.1528
142.5 105 2.318 1.283 0.0644
142.5 285 1.184 0.1472 0.1588
142.5 315 0.6817 0.1556 0.1413
142.5 345 0.5237 0.1013 0.1417
157.5 15 0.6962 0.284 0.1372
157.5 345 0.2401 0.07894 0.02738