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Measurement E8M16

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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 : 1.4 — 1.42 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 11.93 1.01 1.063
7.5 45 15.67 1.529 1.08
7.5 75 13.66 1.676 1.04
7.5 105 13.45 1.416 1.057
7.5 135 11.45 1.098 1.005
7.5 165 19.8 2.079 1.001
7.5 195 11.08 1.165 1.017
7.5 225 11.5 1.11 0.9895
7.5 255 12.65 1.339 1.003
7.5 285 12.85 1.382 1.071
7.5 315 12.84 1.447 1.045
7.5 345 10.43 0.8538 0.9927
22.5 45 9.31 2.116 0.9158
22.5 75 10.53 1.766 0.9531
22.5 105 10.75 1.487 0.9193
22.5 135 7.95 1.065 0.912
22.5 225 9.685 1.181 0.9122
22.5 255 9.349 1.401 0.9106
22.5 285 10.55 1.807 0.9533
22.5 315 9.586 1.846 0.9263
37.5 45 9.334 0.5128 0.8244
37.5 75 9.492 0.5236 0.839
37.5 165 3.501 0.3083 0.7358
37.5 195 3.887 0.3474 0.7388
37.5 285 9.77 0.5457 0.8494
37.5 315 8.99 0.5088 0.8103
52.5 45 7.221 0.8146 0.5403
52.5 75 8.498 0.5801 0.582
52.5 105 7.847 0.8046 0.5623
52.5 135 5.445 0.4275 0.4907
52.5 165 2.956 0.1663 0.4513
52.5 195 3.1 0.1649 0.4543
52.5 225 5.5 0.3916 0.4907
52.5 285 9.721 1.038 0.5567
52.5 315 6.201 0.7493 0.5231
67.5 15 4.377 2.345 0.4147
67.5 45 5.372 0.7124 0.4064
67.5 75 5.927 0.7233 0.4529
67.5 105 6.562 0.2645 0.4579
67.5 135 5.055 0.3521 0.4186
67.5 165 2.413 0.1422 0.3635
67.5 195 2.393 0.1474 0.3629
67.5 225 4.724 0.3297 0.4144
67.5 255 7.104 0.2739 0.4841
67.5 285 7.103 0.7821 0.4534
67.5 315 3.743 0.5043 0.3886
82.5 15 2.207 0.7143 0.2743
82.5 45 2.832 0.3611 0.2927
82.5 75 4.839 0.3259 0.324
82.5 105 4.696 0.2106 0.3394
82.5 135 3.825 0.3466 0.3109
82.5 165 1.965 0.1512 0.2658
82.5 195 2.047 0.1501 0.2716
82.5 225 3.853 0.3122 0.3075
82.5 255 4.914 0.2254 0.3364
82.5 285 4.741 0.314 0.3374
82.5 315 3.324 0.487 0.2824
82.5 345 1.064 0.3485 0.2477
97.5 15 0.852 0.1521 0.1536
97.5 45 2.029 0.1497 0.1792
97.5 75 3.545 0.321 0.233
97.5 105 3.281 0.1928 0.2339
97.5 135 2.78 0.2765 0.2115
97.5 165 1.321 0.1182 0.1728
97.5 195 1.77 0.1663 0.1805
97.5 225 2.34 0.2078 0.1943
97.5 255 3.423 0.1898 0.2343
97.5 285 3.261 0.2689 0.2266
97.5 315 2.331 0.1561 0.1949
97.5 345 1.105 0.2269 0.1544
112.5 15 0.4335 0.091 0.1205
112.5 45 1.216 0.1212 0.1365
112.5 75 2.12 0.2119 0.1652
112.5 105 1.969 0.1414 0.1727
112.5 135 1.595 0.1496 0.1507
112.5 165 1.336 0.1869 0.1496
112.5 195 0.987 0.112 0.1372
112.5 225 1.921 0.2292 0.1782
112.5 255 2.083 0.14 0.1641
112.5 285 2.038 0.2165 0.1669
112.5 315 1.368 0.1414 0.1404
112.5 345 0.6034 0.127 0.1233
127.5 15 0.532 0.102 0.1533
127.5 45 0.6862 0.09058 0.1555
127.5 75 1.091 0.1173 0.1662
127.5 105 1.382 0.2125 0.1762
127.5 135 1.264 0.1587 0.1773
127.5 195 1.461 0.5219 0.1822
127.5 225 1.271 0.1612 0.1745
127.5 255 1.43 0.1669 0.1798
127.5 285 1.537 0.2499 0.1769
127.5 315 0.8758 0.114 0.1601
127.5 345 0.292 0.05737 0.06257
142.5 15 0.3905 0.0945 0.04164
142.5 45 0.7037 0.1707 0.1718
142.5 75 0.7119 0.1212 0.1836
142.5 105 1.217 0.4734 0.06327
142.5 285 0.719 0.107 0.174
142.5 315 0.5424 0.1375 0.1739
142.5 345 0.348 0.07639 0.04099
157.5 15 0.2919 0.0766 0.0283
157.5 345 0.4142 0.09779 0.07034