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Measurement E8M70

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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 : 0.55 — 0.65 GeV2
W : 1.12 — 1.14 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
22.5 15 2.575 1.051 0.2574
22.5 45 2.22 0.7238 0.2375
22.5 75 3.231 0.818 0.2426
22.5 105 3.059 0.7137 0.2618
22.5 135 2.236 0.4578 0.2459
22.5 165 3.412 0.5598 0.2652
22.5 195 3.63 0.7837 0.2903
22.5 225 2.732 0.6867 0.2395
22.5 255 2.521 0.5704 0.2608
22.5 285 2.661 0.7283 0.2483
22.5 315 3.095 1.387 0.2685
22.5 345 3.26 1.048 0.2669
37.5 15 3.026 1.1 0.2702
37.5 45 2.331 1.316 0.2632
37.5 75 2.565 0.6863 0.2764
37.5 105 4.019 0.8595 0.2988
37.5 135 3.338 0.5294 0.2829
37.5 165 3.657 0.5274 0.2775
37.5 195 3.297 0.4824 0.2792
37.5 225 3.515 0.4887 0.3157
37.5 255 4.013 0.7854 0.3142
37.5 285 3.6 1.02 0.2911
37.5 315 1.811 0.7646 0.2684
37.5 345 1.493 0.474 0.2556
52.5 15 3.791 1.95 0.3252
52.5 45 2.072 1.222 0.305
52.5 75 4.068 1.497 0.3338
52.5 105 4.02 1.031 0.3324
52.5 135 4.845 0.7437 0.339
52.5 165 3.389 0.4227 0.3223
52.5 195 3.287 0.3875 0.3296
52.5 225 3.696 0.6242 0.3277
52.5 255 2.752 0.4525 0.3073
52.5 285 2.485 0.5633 0.3089
52.5 315 2.655 1.014 0.3058
67.5 45 2.263 0.5853 0.2727
67.5 75 3.391 0.453 0.2934
67.5 105 3.592 0.6014 0.2919
67.5 135 3.551 0.552 0.2991
67.5 165 3.016 0.4182 0.2892
67.5 195 3.369 0.4475 0.3009
67.5 225 3.557 0.6328 0.3044
67.5 255 3.77 0.5973 0.2979
67.5 285 3.52 0.5796 0.3062
67.5 315 1.85 0.4213 0.2713
82.5 45 2.174 0.3282 0.2594
82.5 75 3.703 0.4159 0.2908
82.5 105 4.277 0.5975 0.2999
82.5 135 4.912 1.036 0.3336
82.5 165 2.581 0.3249 0.2733
82.5 195 3.457 0.4982 0.2868
82.5 225 3.799 0.6799 0.2947
82.5 255 4.011 0.5506 0.3157
82.5 285 3.818 0.413 0.3057
82.5 315 2.602 0.4337 0.2621
97.5 45 2.333 0.6093 0.2446
97.5 75 3.84 0.4776 0.2641
97.5 105 4.164 0.5151 0.2778
97.5 135 3.31 0.4691 0.2702
97.5 165 2.495 0.3089 0.2496
97.5 195 2.892 0.3539 0.2587
97.5 225 3.703 0.5598 0.2763
97.5 255 4.515 0.5759 0.3067
97.5 285 3.025 0.3508 0.2582
97.5 315 2.495 0.4566 0.2462
112.5 45 2.553 1.105 0.3076
112.5 75 4.037 0.6519 0.3269
112.5 105 3.81 0.5349 0.3385
112.5 135 3.263 0.579 0.3176
112.5 165 2.224 0.4504 0.3045
112.5 195 2.163 0.4461 0.3089
112.5 225 2.996 0.5683 0.3424
112.5 255 3.926 0.4627 0.3363
112.5 285 3.045 0.4871 0.3192
112.5 315 2.232 0.8533 0.3065
127.5 45 1.584 0.8868 0.3739
127.5 75 2.703 0.7901 0.3877
127.5 105 3.845 0.6217 0.4193
127.5 135 3.548 0.8613 0.4045
127.5 165 3.041 0.708 0.3952
127.5 195 3.821 1.108 0.3852
127.5 225 3.513 1.229 0.4102
127.5 255 3.644 0.8333 0.4057
127.5 285 5.104 1.258 0.4099
127.5 315 2.468 0.7875 0.3786
142.5 105 4.428 3.327 0.2011
142.5 315 2.506 1.577 0.2011