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Measurement E8M10

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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 : 1.28 — 1.3 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 16.14 1.605 1.622
7.5 45 23.58 3.849 1.613
7.5 75 21.03 5.442 1.627
7.5 285 19.36 3.622 1.659
7.5 315 16.1 1.878 1.561
7.5 345 14.91 1.572 1.562
22.5 15 15 1.126 1.269
22.5 45 13.97 1.869 1.288
22.5 135 15.04 0.7531 1.282
22.5 165 14.55 0.6811 1.268
22.5 195 14.33 0.675 1.267
22.5 225 14.2 0.7199 1.286
22.5 315 16.02 2.501 1.378
22.5 345 14.02 1.078 1.258
37.5 45 8.283 1.331 1.053
37.5 105 17.45 2.362 1.222
37.5 135 12.5 0.6166 1.105
37.5 165 9.997 0.4412 1.058
37.5 195 11.47 0.4808 1.076
37.5 225 12.49 0.6718 1.096
37.5 255 15.21 1.631 1.145
37.5 315 8.824 0.8946 1.053
52.5 45 10.59 0.6872 0.8937
52.5 75 12.51 1.199 0.9509
52.5 105 13.44 0.6796 0.9411
52.5 135 13.68 1.155 0.9525
52.5 165 8.445 0.3448 0.8439
52.5 195 9.152 0.375 0.8585
52.5 225 10.93 0.8273 0.8899
52.5 255 11.71 0.5919 0.9207
52.5 285 11.9 1.025 0.9177
52.5 315 12.95 1.85 0.9184
67.5 75 11.08 0.4212 0.7757
67.5 105 11.7 0.4387 0.7788
67.5 135 9.115 0.657 0.7356
67.5 165 7.039 0.3713 0.685
67.5 195 6.989 0.355 0.6938
67.5 225 11.62 0.8766 0.8054
67.5 255 11.74 0.441 0.7993
67.5 285 10.95 0.4105 0.7724
82.5 45 7.693 0.9578 0.6135
82.5 75 8.718 0.4233 0.6212
82.5 105 10.37 0.3969 0.6685
82.5 135 8.092 0.5535 0.6187
82.5 165 5.599 0.2926 0.5685
82.5 195 5.532 0.297 0.5667
82.5 225 8.634 0.664 0.6275
82.5 255 9.652 0.3671 0.6625
82.5 285 9.222 0.4968 0.6336
82.5 315 6.818 0.7009 0.5889
97.5 15 2.648 0.4214 0.4455
97.5 45 5.028 0.2626 0.4769
97.5 75 7.771 0.5386 0.5385
97.5 105 8.2 0.3606 0.5577
97.5 135 8.553 0.8766 0.5418
97.5 165 4.501 0.2859 0.4865
97.5 195 4.66 0.2752 0.4796
97.5 225 6.079 0.4117 0.501
97.5 255 9.65 0.385 0.5929
97.5 285 7.708 0.5212 0.553
97.5 315 5.279 0.2844 0.487
97.5 345 4.75 2.331 0.4833
112.5 15 2.203 0.2545 0.3628
112.5 45 4.178 0.2624 0.3957
112.5 75 5.526 0.4592 0.4164
112.5 105 6.271 0.3044 0.4595
112.5 135 5.331 0.3927 0.4267
112.5 165 4.086 0.5733 0.3842
112.5 195 3.773 0.5307 0.3882
112.5 225 5.06 0.4552 0.4251
112.5 255 6.744 0.3096 0.4575
112.5 285 5.478 0.4273 0.4226
112.5 315 4.163 0.2866 0.3933
112.5 345 2.646 0.3029 0.3664
127.5 15 1.882 0.2806 0.2853
127.5 45 3.02 0.2348 0.3034
127.5 75 3.949 0.2885 0.3288
127.5 105 4.689 0.5495 0.3574
127.5 135 3.315 0.3468 0.3134
127.5 225 3.608 0.3302 0.3381
127.5 255 4.95 0.9039 0.3543
127.5 285 4.872 0.4091 0.3564
127.5 315 3.058 0.235 0.3125
127.5 345 1.89 0.24 0.2853
142.5 15 1.479 0.2504 0.374
142.5 45 2.397 0.4837 0.3814
142.5 75 2.902 0.2241 0.3881
142.5 255 3.315 0.912 0.1532
142.5 285 2.842 0.2543 0.3851
142.5 315 3.663 0.7925 0.3974
142.5 345 1.642 0.1941 0.3739
157.5 15 1.272 0.2086 0.2116
157.5 345 1.296 0.2004 0.2138