CLAS Physics Database

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Measurement E8M9

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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 : 1.26 — 1.28 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 view sliced data.

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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 18.52 2.417 4.127
7.5 165 13.5 2.217 4.04
7.5 195 16.54 1.771 4.071
7.5 225 16.3 3.091 4.04
7.5 315 10.65 1.702 4.043
7.5 345 21.06 3.302 4.086
22.5 15 15.51 1.083 1.244
22.5 45 15.68 2.91 1.267
22.5 105 15.53 1.576 1.21
22.5 135 15.98 0.7567 1.209
22.5 165 14.49 0.6866 1.187
22.5 195 16.96 0.7949 1.215
22.5 225 14.85 0.7112 1.18
22.5 255 16.46 1.489 1.229
22.5 315 17.19 3.087 1.354
22.5 345 17.66 1.286 1.217
37.5 105 18.29 2.541 1.19
37.5 135 13.87 0.6455 1.066
37.5 165 12.28 0.4977 1.044
37.5 195 12.5 0.5212 1.048
37.5 225 15.29 0.756 1.1
37.5 255 14.89 1.503 1.123
52.5 45 11.49 1.183 0.9785
52.5 75 14.42 1.508 1.048
52.5 105 16.36 0.8052 1.068
52.5 135 13.96 0.9588 1.012
52.5 165 10.36 0.4231 0.9453
52.5 195 10.34 0.4218 0.946
52.5 225 14.76 1.161 1.03
52.5 255 14.71 0.752 1.054
52.5 285 14.97 1.051 1.041
52.5 315 11.76 0.9932 0.9972
67.5 75 13.65 0.4755 0.9335
67.5 105 14.17 0.5128 0.9459
67.5 135 10.5 0.7246 0.8529
67.5 165 8.56 0.4188 0.8249
67.5 195 7.766 0.3899 0.8176
67.5 225 12.87 1.263 0.9067
67.5 255 15.53 0.5502 0.975
67.5 285 13.98 0.4799 0.9313
82.5 45 8.085 0.7892 0.7494
82.5 75 12.24 0.5207 0.8392
82.5 105 14.43 0.5024 0.9067
82.5 135 11.65 0.9412 0.8256
82.5 165 6.77 0.3061 0.732
82.5 195 8.055 0.3706 0.7498
82.5 225 10.84 0.77 0.815
82.5 255 13.62 0.4729 0.8857
82.5 285 12.39 0.5362 0.845
82.5 315 8.93 0.8875 0.7547
97.5 15 4.303 0.5456 0.543
97.5 45 7.448 0.3566 0.5994
97.5 75 10.63 0.7316 0.6782
97.5 105 10.99 0.4286 0.6765
97.5 135 9.131 0.849 0.6304
97.5 165 5.548 0.3193 0.5653
97.5 195 5.988 0.3477 0.5919
97.5 225 8.81 0.5945 0.6387
97.5 255 12.06 0.4366 0.708
97.5 285 9.056 0.5445 0.6312
97.5 315 7.376 0.35 0.5982
97.5 345 4.2 0.4858 0.5445
112.5 15 3.626 0.3267 0.496
112.5 45 6.096 0.3196 0.5366
112.5 75 8.281 0.5679 0.5917
112.5 105 8.591 0.363 0.6017
112.5 135 8.257 0.9242 0.5797
112.5 165 5.71 0.549 0.5288
112.5 195 5.649 0.6982 0.5187
112.5 225 6.032 0.4247 0.5482
112.5 255 9.23 0.3788 0.6156
112.5 285 9.446 0.6355 0.6173
112.5 315 5.841 0.3326 0.5334
112.5 345 4.045 0.3649 0.5031
127.5 15 4.177 0.5725 0.5039
127.5 45 4.928 0.3124 0.5165
127.5 75 6.543 0.432 0.5609
127.5 105 6.508 0.5261 0.5598
127.5 135 5.307 0.4765 0.5367
127.5 225 4.56 0.3696 0.5187
127.5 255 7.348 0.715 0.5712
127.5 285 6.695 0.5121 0.5534
127.5 315 5.508 0.3493 0.5269
127.5 345 3.165 0.3307 0.4944
142.5 15 3.296 0.342 0.3538
142.5 45 3.598 0.3483 0.3653
142.5 75 4.922 0.3264 0.3889
142.5 285 4.993 0.3721 0.4036
142.5 315 3.79 0.4173 0.3637
142.5 345 2.895 0.2927 0.3477
157.5 15 2.582 0.3658 0.3452
157.5 345 2.485 0.3308 0.3447