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Measurement E8M78

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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 : 1.28 — 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 9.172 1.82 1.149
7.5 45 9.348 2.032 1.166
7.5 75 7.586 2.002 1.181
7.5 105 23.05 11.3 1.277
7.5 135 11.97 3.131 1.253
7.5 165 15.41 5.295 1.199
7.5 195 15.43 6.146 1.246
7.5 225 9.293 3.51 1.177
7.5 255 12.15 3.973 1.196
7.5 285 15.51 5.923 1.176
7.5 315 10.93 2.03 1.175
7.5 345 14.2 2.803 1.297
22.5 15 10.13 1.229 1.179
22.5 45 9.227 1.579 1.144
22.5 75 17.07 5.027 1.293
22.5 285 15.85 5.227 1.215
22.5 315 11.87 2.206 1.179
22.5 345 9.576 1.254 1.168
37.5 45 11.87 3.385 0.8021
37.5 75 9.611 1.736 0.8576
37.5 135 9.418 1.032 0.7606
37.5 165 8.163 0.5308 0.763
37.5 195 7.632 0.4979 0.763
37.5 225 8.866 0.9744 0.787
37.5 285 9.95 1.85 0.7919
37.5 315 12.4 4.594 0.8528
52.5 45 6.7 0.6948 0.6008
52.5 105 8.358 0.9032 0.6273
52.5 135 8.424 0.6933 0.5958
52.5 165 6.704 0.4441 0.5569
52.5 195 6.525 0.4222 0.5787
52.5 225 6.92 0.5445 0.585
52.5 255 8.379 1.466 0.6023
52.5 315 7.201 0.6999 0.5848
67.5 45 6.164 1.32 0.4924
67.5 75 5.466 0.5499 0.4897
67.5 105 6.982 0.4788 0.5123
67.5 135 6.77 0.5738 0.5233
67.5 165 6.71 0.4802 0.5164
67.5 195 5.595 0.3768 0.4841
67.5 225 7.007 0.5648 0.5261
67.5 255 7.521 0.5034 0.5409
67.5 285 4.581 0.522 0.4955
67.5 315 5.483 1.006 0.4916
82.5 15 3.319 0.6865 0.3993
82.5 45 4.974 1.863 0.4472
82.5 75 5.179 0.4132 0.4348
82.5 105 5.903 0.3889 0.4454
82.5 135 5.088 0.4996 0.4328
82.5 165 4.757 0.4444 0.4294
82.5 195 4.518 0.4033 0.4265
82.5 225 5.904 0.568 0.4575
82.5 255 6.293 0.4384 0.4595
82.5 285 5.695 0.4154 0.456
82.5 315 3.791 1.474 0.4135
97.5 15 1.732 0.6069 0.3533
97.5 45 3.646 0.4266 0.3711
97.5 75 4.08 0.4007 0.3774
97.5 105 4.75 0.3492 0.39
97.5 135 4.035 0.4721 0.3758
97.5 165 3.338 0.3395 0.3634
97.5 195 3.566 0.3455 0.3785
97.5 225 5.515 0.5938 0.4097
97.5 255 4.722 0.3638 0.3883
97.5 285 5.162 0.4837 0.3958
97.5 315 3.021 0.3462 0.362
112.5 15 1.903 0.4766 0.2491
112.5 45 2.219 0.2646 0.2607
112.5 75 4.067 0.515 0.3002
112.5 105 3.173 0.3488 0.283
112.5 135 2.911 0.3295 0.2752
112.5 165 2.531 0.3393 0.261
112.5 195 2.311 0.313 0.2596
112.5 225 4.09 0.5703 0.3034
112.5 255 3.841 0.3344 0.2894
112.5 285 4.224 0.5162 0.3044
112.5 315 2.581 0.2988 0.2627
127.5 15 1.147 0.2559 0.3034
127.5 45 1.529 0.2415 0.309
127.5 75 1.786 0.3076 0.3125
127.5 105 2.367 0.316 0.3203
127.5 135 1.517 0.2512 0.3053
127.5 165 2.185 0.5401 0.3284
127.5 195 1.749 0.3737 0.31
127.5 225 2.485 0.4955 0.3184
127.5 255 3.768 1.358 0.3265
127.5 285 2.217 0.293 0.3148
127.5 315 2.668 0.4485 0.3218
127.5 345 1.836 0.4371 0.3091
142.5 15 1.282 0.3159 0.3489
142.5 45 1.328 0.2507 0.3563
142.5 75 2.758 0.5651 0.3687
142.5 105 1.53 0.3872 0.3555
142.5 225 1.942 0.7789 0.1049
142.5 255 1.937 0.6744 0.3566
142.5 285 2.282 0.6338 0.3569
142.5 315 2.291 0.4029 0.3625
142.5 345 0.8743 0.205 0.3472
157.5 15 0.7606 0.2374 0.3982
157.5 45 0.8965 0.4696 0.05743
157.5 345 1.291 0.4214 0.401