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Measurement E8M57

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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 : 0.45 — 0.55 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 18.79 2.955 1.612
7.5 45 12.1 1.823 1.502
7.5 75 14 2.114 1.588
7.5 105 17.77 3.659 1.662
7.5 135 26.68 13.05 1.578
7.5 255 16.47 2.983 1.566
7.5 285 11.5 1.983 1.543
7.5 315 15.63 2.219 1.59
7.5 345 14.14 1.828 1.586
22.5 15 11.64 1.009 0.9059
22.5 45 11.74 1.59 0.8926
22.5 75 11.93 1.927 0.8993
22.5 165 9.228 1.107 0.8465
22.5 195 9.865 1.392 0.8959
22.5 285 13.95 2.171 0.9302
22.5 315 9.395 1.267 0.8557
22.5 345 11.08 0.9406 0.8992
37.5 15 15.25 6.415 1.163
37.5 45 9.771 1.744 1.136
37.5 75 12.56 6.148 1.161
37.5 135 9.476 0.6233 1.134
37.5 165 10.69 0.5616 1.135
37.5 195 10.14 0.5414 1.134
37.5 225 8.668 0.5777 1.108
37.5 315 9.587 1.72 1.12
52.5 45 7.675 0.5068 0.6531
52.5 75 6.903 1.089 0.6918
52.5 105 8.54 0.5358 0.6749
52.5 135 9.057 0.5598 0.6853
52.5 165 7.546 0.4056 0.6473
52.5 195 7.621 0.3875 0.6568
52.5 225 9.336 0.5842 0.6951
52.5 255 9.184 0.5669 0.7008
52.5 285 13.35 4.482 0.6722
52.5 315 7.328 0.4991 0.6512
67.5 45 7.42 1.125 0.6267
67.5 75 7.356 0.6555 0.6099
67.5 105 7.646 0.4212 0.611
67.5 135 8.085 0.5463 0.6139
67.5 165 6.562 0.353 0.5847
67.5 195 6.489 0.3453 0.5886
67.5 225 7.754 0.5182 0.6298
67.5 255 8.403 0.4261 0.6458
67.5 285 7.336 0.6345 0.6186
67.5 315 5.819 0.841 0.5764
82.5 15 2.552 0.4051 0.4194
82.5 45 4.231 0.939 0.4446
82.5 75 6.497 0.367 0.4898
82.5 105 6.993 0.3592 0.5083
82.5 135 6.494 0.4886 0.4999
82.5 165 5.491 0.3822 0.4673
82.5 195 5.113 0.3495 0.4691
82.5 225 6.498 0.4578 0.5019
82.5 255 6.973 0.3522 0.5065
82.5 285 6.329 0.3433 0.4879
82.5 315 4.337 0.778 0.4796
97.5 15 2.161 0.6611 0.3075
97.5 45 3.673 0.2728 0.3382
97.5 75 4.485 0.3559 0.3588
97.5 105 5.521 0.3184 0.3935
97.5 135 4.963 0.3503 0.383
97.5 165 3.92 0.2644 0.3512
97.5 195 3.999 0.2574 0.3616
97.5 225 4.473 0.3479 0.3694
97.5 255 6.07 0.3351 0.3988
97.5 285 5.561 0.3886 0.3797
97.5 315 3.61 0.2648 0.3357
97.5 345 1.781 0.5407 0.3118
112.5 15 2.32 0.5382 0.2962
112.5 45 3.221 0.2489 0.32
112.5 75 3.757 0.3315 0.3176
112.5 105 4.526 0.2984 0.3336
112.5 135 3.147 0.264 0.3058
112.5 165 3.558 0.3143 0.319
112.5 195 3.319 0.3022 0.3124
112.5 225 3.148 0.2705 0.3091
112.5 255 4.674 0.2918 0.3573
112.5 285 4.214 0.3874 0.3248
112.5 315 2.669 0.2168 0.3002
112.5 345 2.843 0.5296 0.2988
127.5 15 2.334 0.4081 0.2893
127.5 45 2.332 0.2226 0.2949
127.5 75 2.74 0.2802 0.2958
127.5 105 3.309 0.3214 0.3162
127.5 135 2.993 0.3675 0.3048
127.5 165 1.813 0.2366 0.2862
127.5 195 2.214 0.2858 0.3131
127.5 225 2.842 0.345 0.3023
127.5 255 2.719 0.2555 0.3008
127.5 285 2.665 0.2487 0.3014
127.5 315 2.361 0.2613 0.2943
127.5 345 1.727 0.2481 0.2856
142.5 15 1.062 0.1962 0.2399
142.5 45 1.267 0.2003 0.2381
142.5 75 1.833 0.2124 0.2424
142.5 105 1.797 0.3605 0.2403
142.5 135 1.347 0.2505 0.2451
142.5 225 1.472 0.3127 0.2489
142.5 255 1.346 0.2795 0.2399
142.5 285 2.219 0.2989 0.2474
142.5 315 1.608 0.2327 0.2456
142.5 345 1.425 0.2454 0.2438
157.5 15 1.258 0.3138 0.3316
157.5 45 1.601 0.8325 0.3369
157.5 315 1.494 0.6274 0.3369
157.5 345 0.985 0.2423 0.328